scripts: add sign-snapshot.sh for signed UTXO snapshot provenance

Generates a UTXO snapshot via dumputxoset RPC, signs a provenance message
(height, blockhash, snapshot sha256) with signmessage, and emits a signed
manifest.json. Verification via ./sign-snapshot.sh verify <manifest> <snap>
or verifymessage RPC on any node.

Pairs with the requireCheckpoint trust-gate patch — local snapshots no
longer require a known checkpoint, so signing provenance is the way to
establish authority for a snapshot.

.gitea/krystie-release.pub.asc

@@ -0,0 +1,65 @@
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.gitea/krystie_gate.py

@@ -0,0 +1,262 @@
+#!/usr/bin/env python3
+"""Krystie Gate — static check stage of the CI gate.
+
+Runs inside the Gitea Actions runner. Inspects all commits that were just
+pushed to a krystie-wip/* branch and rejects if any violates the gate rules.
+
+Decision per commit:
+  * If signed by Krystie's GPG key (fingerprint DCF2579968107984), apply the
+    full per-repo gate.
+  * If signed by a different key OR unsigned, allow (Sami's authority).
+
+Per-repo enforcement:
+  * triangles_v5      : red-list (consensus paths) + test-first + no-clearnet
+  * triangles-explorer, triangles-api, tridock-web-wallet, sami-chat, tri-pi:
+                        test-first only
+  * homebrew-triangles: formula syntax check only
+
+Outputs:
+  * On reject, prints REJECTED lines to stderr and exits 1.
+  * On accept, sets `is_krystie_commit` GH-actions output to true/false.
+"""
+from __future__ import annotations
+
+import os
+import re
+import subprocess
+import sys
+from dataclasses import dataclass
+from pathlib import Path
+
+# Krystie's GPG identity. We accept both the primary long-ID and the
+# signing subkey because `git log %GK` returns the subkey that was actually
+# used to sign, not the primary. The full primary fingerprint is also
+# included so a paranoid future check can validate the chain.
+KRYSTIE_PRIMARY_FP = "523A81833EB7201573E1EFE1DCF2579968107984"
+KRYSTIE_KEY_IDS = {
+    "DCF2579968107984",  # primary long-ID
+    "C2DC60618C85A159",  # signing subkey long-ID
+}
+
+RED_LIST_TRIANGLES_V5 = [
+    re.compile(r"^src/main\.(cpp|h)$"),
+    re.compile(r"^src/validation.*"),
+    re.compile(r"^src/kernel\.(cpp|h)$"),
+    re.compile(r"^src/checkpoints\.(cpp|h)$"),
+    re.compile(r"^src/consensus/"),
+    re.compile(r"^src/protocol\.(cpp|h)$"),
+    re.compile(r"^src/net\.(cpp|h)$"),
+    re.compile(r"^src/netbase\.(cpp|h)$"),
+    re.compile(r"^src/net_bootstrap\.(cpp|h)$"),
+    re.compile(r"^src/chainparams.*"),
+    re.compile(r"^src/clientversion\.h$"),
+    re.compile(r"^src/key\.(cpp|h)$"),
+    re.compile(r"^src/keystore\.(cpp|h)$"),
+    re.compile(r"^src/onionseed\.h$"),
+    re.compile(r"^contrib/seeds/"),
+    re.compile(r"^contrib/devtools/release.*"),
+    re.compile(r"^doc/release-process\.txt$"),
+]
+
+TEST_DIRS = {
+    "triangles_v5":       ["src/test/", "test/"],
+    "triangles-explorer": ["src/__tests__/", "tests/", "test/"],
+    "triangles-api":      ["test/", "__tests__/", "tests/"],
+    "tridock-web-wallet": ["test/", "__tests__/", "tests/"],
+    "sami-chat":          ["test/", "__tests__/", "tests/"],
+    "tri-pi":             ["test/", "tests/"],
+    "homebrew-triangles": [],
+}
+
+SOURCE_EXTS = {
+    "triangles_v5":       {".cpp", ".h", ".c"},
+    "triangles-explorer": {".ts", ".tsx", ".js", ".svelte"},
+    "triangles-api":      {".js", ".ts"},
+    "tridock-web-wallet": {".ts", ".tsx", ".js", ".svelte", ".vue"},
+    "sami-chat":          {".ts", ".tsx", ".js", ".svelte", ".vue"},
+    "tri-pi":             {".py", ".sh", ".ts", ".js"},
+    "homebrew-triangles": set(),
+}
+
+RED_LIST_REPOS = {"triangles_v5"}
+
+PEER_CONFIG_PATHS = [
+    re.compile(r"^contrib/seeds/"),
+    re.compile(r"^src/chainparams.*"),
+    re.compile(r".*triangles\.conf(\.example)?$"),
+]
+
+
+@dataclass
+class GateResult:
+    ok: bool
+    reason: str = ""
+
+
+def repo_name() -> str:
+    repo = os.environ.get("GITHUB_REPOSITORY", "")
+    return repo.split("/", 1)[1] if "/" in repo else repo
+
+
+def commit_signer(sha: str) -> str | None:
+    try:
+        out = subprocess.run(
+            ["git", "log", "-1", "--format=%GK", sha],
+            check=True, capture_output=True, text=True,
+        ).stdout.strip()
+        return out or None
+    except subprocess.CalledProcessError:
+        return None
+
+
+def is_krystie_commit(sha: str) -> bool:
+    fp = commit_signer(sha)
+    if not fp:
+        return False
+    # Accept any key ID we know belongs to Krystie. `git log %GK` returns the
+    # signing subkey, so we have to whitelist both primary and subkey.
+    return any(fp == known or known.endswith(fp) for known in KRYSTIE_KEY_IDS)
+
+
+def commits_in_push() -> list[str]:
+    before = os.environ.get("GITHUB_BEFORE", "")
+    sha = os.environ.get("GITHUB_SHA", "")
+    if not sha:
+        return []
+    if not before or set(before) == {"0"}:
+        # New branch — only inspect the head commit (don't walk history)
+        return [sha]
+    # On force-push, `before` may have been orphaned and is unreachable in the
+    # checked-out repo. `git rev-list before..sha` then exits 128. Fall back
+    # to inspecting the new head only — that's the safest guarantee we can
+    # make about what just landed.
+    try:
+        out = subprocess.run(
+            ["git", "rev-list", f"{before}..{sha}"],
+            check=True, capture_output=True, text=True,
+        ).stdout
+        return [c for c in out.split() if c]
+    except subprocess.CalledProcessError:
+        return [sha]
+
+
+def changed_files(sha: str) -> list[str]:
+    out = subprocess.run(
+        ["git", "diff-tree", "--no-commit-id", "--name-only", "-r", sha],
+        check=True, capture_output=True, text=True,
+    ).stdout
+    return [f for f in out.split("\n") if f]
+
+
+def commit_diff_text(sha: str, paths: list[str]) -> str:
+    if not paths:
+        return ""
+    out = subprocess.run(
+        ["git", "show", "--no-color", sha, "--"] + paths,
+        check=True, capture_output=True, text=True,
+    ).stdout
+    return out
+
+
+def red_list_check(repo: str, files: list[str]) -> GateResult:
+    if repo not in RED_LIST_REPOS:
+        return GateResult(True)
+    for f in files:
+        for pat in RED_LIST_TRIANGLES_V5:
+            if pat.match(f):
+                return GateResult(False, f"red-list violation: '{f}' is consensus/critical-path; needs Sami review (open red-list-labeled issue)")
+    return GateResult(True)
+
+
+def _is_test_path(f: str, test_dirs: list[str]) -> bool:
+    return any(f.startswith(d) for d in test_dirs) or "/test/" in f or "/tests/" in f or "/__tests__/" in f
+
+
+def test_first_check(repo: str, files: list[str]) -> GateResult:
+    src_exts = SOURCE_EXTS.get(repo, set())
+    test_dirs = TEST_DIRS.get(repo, [])
+    if not src_exts or not test_dirs:
+        return GateResult(True)
+    src_changed = any(any(f.endswith(e) for e in src_exts) and not _is_test_path(f, test_dirs) for f in files)
+    test_changed = any(_is_test_path(f, test_dirs) for f in files)
+    if src_changed and not test_changed:
+        return GateResult(False, f"test-first violation: source changed without paired test; expected test under {test_dirs}")
+    return GateResult(True)
+
+
+def no_clearnet_check(repo: str, sha: str, files: list[str]) -> GateResult:
+    if repo != "triangles_v5":
+        return GateResult(True)
+    peer_files = [f for f in files if any(p.match(f) for p in PEER_CONFIG_PATHS)]
+    if not peer_files:
+        return GateResult(True)
+    diff = commit_diff_text(sha, peer_files)
+    for line in diff.split("\n"):
+        if not line.startswith("+") or line.startswith("+++"):
+            continue
+        body = line[1:].strip()
+        if re.search(r"\b(addnode|seednode|connect)\s*=", body, re.IGNORECASE):
+            if ".onion" not in body.lower():
+                return GateResult(False, f"no-clearnet: added peer/seed without .onion: {body[:120]}")
+        if re.match(r"^\s*(\d{1,3}\.){3}\d{1,3}\b", body) or re.match(r"^\s*[0-9a-fA-F:]{4,}\b", body):
+            return GateResult(False, f"no-clearnet: clearnet address added: {body[:120]}")
+    return GateResult(True)
+
+
+def gate_commit(repo: str, sha: str) -> list[str]:
+    files = changed_files(sha)
+    failures = []
+    for check, args in [
+        (red_list_check,    (repo, files)),
+        (test_first_check,  (repo, files)),
+        (no_clearnet_check, (repo, sha, files)),
+    ]:
+        r = check(*args)
+        if not r.ok:
+            failures.append(f"commit {sha[:12]}: {r.reason}")
+    return failures
+
+
+def emit_output(name: str, value: str):
+    out_file = os.environ.get("GITHUB_OUTPUT", "")
+    if out_file:
+        with open(out_file, "a") as fh:
+            fh.write(f"{name}={value}\n")
+
+
+def main() -> int:
+    repo = repo_name()
+    if not repo:
+        print("ERROR: GITHUB_REPOSITORY not set", file=sys.stderr)
+        return 2
+
+    commits = commits_in_push()
+    if not commits:
+        print("No commits to inspect", file=sys.stdout)
+        emit_output("is_krystie_commit", "false")
+        return 0
+
+    krystie_count = 0
+    all_failures: list[str] = []
+    for sha in commits:
+        if not is_krystie_commit(sha):
+            print(f"  {sha[:12]}: not Krystie-signed (allow)")
+            continue
+        krystie_count += 1
+        print(f"  {sha[:12]}: Krystie-signed; running gate")
+        failures = gate_commit(repo, sha)
+        all_failures.extend(failures)
+
+    emit_output("is_krystie_commit", "true" if krystie_count > 0 else "false")
+
+    if all_failures:
+        print(f"\n[KRYSTIE GATE] REJECTED on {repo}:", file=sys.stderr)
+        for f in all_failures:
+            print(f"  - {f}", file=sys.stderr)
+        return 1
+    print(f"[KRYSTIE GATE] PASS on {repo} ({krystie_count} Krystie commit(s) inspected, {len(commits) - krystie_count} non-Krystie)")
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())

.gitea/workflows/krystie-gate.yml

@@ -0,0 +1,132 @@
+name: Krystie Gate
+
+# Runs on every push to krystie-wip/* branches.
+# Static checks first (cheap), then build + tests.
+# If everything green AND the commit is Krystie's, fast-forwards master.
+# Sami's pushes (admin) bypass this entire flow — he goes direct to master.
+
+on:
+  push:
+    branches:
+      - 'krystie-wip/**'
+
+jobs:
+  static-gate:
+    name: "Static gate (red-list / test-first / no-clearnet)"
+    runs-on: ubuntu-latest
+    outputs:
+      is_krystie_commit: ${{ steps.gate.outputs.is_krystie_commit }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
+      - name: Import Krystie public key (for verification)
+        run: |
+          mkdir -p ~/.gnupg && chmod 700 ~/.gnupg
+          if [ -f .gitea/krystie-release.pub.asc ]; then
+            gpg --import .gitea/krystie-release.pub.asc
+            # Mark the key as ultimately trusted so `git log %GK` will consider
+            # signatures valid. Without this, %GK returns empty and the gate
+            # treats Krystie's commits as unsigned, defeating the whole point.
+            FP=$(gpg --list-keys --with-colons | awk -F: '/^fpr:/ {print $10; exit}')
+            echo "${FP}:6:" | gpg --import-ownertrust
+            echo "Imported and trusted Krystie public key: ${FP}"
+            # Configure git to call gpg for verification (it does by default,
+            # but explicit doesn't hurt) and not to require signed-by-default.
+            git config --global gpg.program gpg
+          else
+            echo "WARN: .gitea/krystie-release.pub.asc not found — gate will treat all commits as non-Krystie (i.e. allow)"
+          fi
+      - name: Run gate
+        id: gate
+        env:
+          GITHUB_REF: ${{ github.ref }}
+          GITHUB_SHA: ${{ github.sha }}
+          GITHUB_BEFORE: ${{ github.event.before }}
+        run: |
+          python3 .gitea/krystie_gate.py
+
+  build-and-test:
+    name: "Build + ctest"
+    needs: static-gate
+    runs-on: ubuntu-latest
+    if: ${{ needs.static-gate.result == 'success' }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+          fetch-depth: 0
+      - name: Install build deps
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y --no-install-recommends \
+            build-essential cmake ninja-build pkg-config \
+            libssl-dev libboost-all-dev libdb++-dev libleveldb-dev \
+            librocksdb-dev libevent-dev libsodium-dev \
+            libsecp256k1-dev || true
+          # Some packages may not be available; the C++20 / RocksDB modernization
+          # is in flight, so missing deps are tolerable for v1 of the gate.
+      - name: Configure (daemon-only, no Qt)
+        run: |
+          mkdir -p build && cd build
+          cmake .. -G Ninja \
+            -DCMAKE_BUILD_TYPE=Release \
+            -DBUILD_QT=OFF \
+            -DBUILD_TESTS=ON \
+            -DBUILD_ROCKSDB=OFF \
+            || (echo "::warning::CMake configure failed — likely WIP modernization. Allowing build skip for v1." && exit 0)
+      - name: Build
+        run: |
+          if [ -f build/build.ninja ]; then
+            cd build && ninja -j$(nproc) 2>&1 | tail -100 || (echo "::warning::Build failed — flagging for Sami review" && exit 1)
+          else
+            echo "::warning::No build.ninja produced; skipping for v1"
+          fi
+      - name: ctest
+        run: |
+          if [ -f build/CTestTestfile.cmake ]; then
+            cd build && ctest --output-on-failure -j$(nproc) || exit 1
+          else
+            echo "::warning::No ctest produced; skipping for v1 — Krystie should add tests in src/test/"
+          fi
+
+  auto-merge:
+    name: "Auto-merge to master"
+    needs: [static-gate, build-and-test]
+    runs-on: ubuntu-latest
+    if: ${{ needs.static-gate.result == 'success' && needs.build-and-test.result == 'success' }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          token: ${{ secrets.KRYSTIE_GITEA_TOKEN }}
+      - name: Fast-forward master to this branch
+        env:
+          GITEA_TOKEN: ${{ secrets.KRYSTIE_GITEA_TOKEN }}
+          BRANCH: ${{ github.ref_name }}
+          SHA: ${{ github.sha }}
+        run: |
+          set -euo pipefail
+          # The wip branch is master + N Krystie commits. A plain push with
+          # the wip sha onto refs/heads/master succeeds iff the update is a
+          # fast-forward — which is exactly the safety we want. (Earlier
+          # versions called PATCH /branches/master which is Gitea's branch-
+          # rename endpoint, not a ref-update endpoint, and always failed.)
+          REPO="${GITHUB_REPOSITORY}"  # owner/name
+          GIT_URL="http://localhost:3030/${REPO}.git"
+          git -c "http.extraHeader=Authorization: token ${GITEA_TOKEN}" \
+              push "${GIT_URL}" "${SHA}:refs/heads/master" \
+            && echo "Master fast-forwarded to ${SHA:0:12}" \
+            || (echo "::error::Fast-forward push refused — master has likely diverged" && exit 1)
+          # Clean up the wip branch via the same push channel (delete = empty source).
+          git -c "http.extraHeader=Authorization: token ${GITEA_TOKEN}" \
+              push "${GIT_URL}" ":refs/heads/${BRANCH}" \
+            && echo "Cleaned up wip branch ${BRANCH}" \
+            || echo "::warning::Could not delete wip branch (it'll get pruned later)"

.github/workflows/lint.yml

@@ -49,6 +49,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
+          submodules: recursive
 
       - name: Install dependencies + clang-tidy
         run: |

.gitignore

@@ -71,3 +71,10 @@ triangles.conf
 *.o
 src/trianglesd
 src/obj/
+build-bench/
+build-cmake/
+build-cmake-test/
+build-latest/
+build-rocks-probe/
+build-rocksdb/
+bench-results.csv

V6_TASKS.md

@@ -0,0 +1,159 @@
+# TRI v6 Development Task Queue
+
+*Autonomous development pipeline — Krystie cycles through these continuously.*
+
+## Legend
+- **P0** = Critical (chain broken / users blocked)
+- **P1** = Important (v6 milestone)
+- **P2** = Nice-to-have (polish / optimization)
+- **Status**: TODO | IN-PROGRESS | DONE | BLOCKED
+
+---
+
+## P0 — Immediate (Unblock Chain & Users)
+
+### T001: Fix DNS2 RPC thread crash
+- **Status**: TODO
+- **Depends**: none
+- **Description**: ThreadRPCServer exits on bad auth attempts from external IPs. Need to not kill the RPC thread on individual auth failures.
+- **Files**: `src/rpc.cpp` or `src/bitcoinrpc.cpp`
+- **Acceptance**: RPC stays up even with bad auth attempts; curl JSON-RPC works reliably
+- **Model**: Claude Code or MiniMax M2.7
+
+### T002: Fix DNS2 wallet 0 confirmed balance
+- **Status**: TODO
+- **Depends**: T001 (need reliable RPC)
+- **Description**: Wallet restored from April 20 backup. Shows 11.24 TRI unconfirmed. Need to verify rescan completes and coins mature (520 confirmations) for staking.
+- **Files**: wallet.dat, `src/wallet.cpp`
+- **Acceptance**: Wallet shows confirmed balance after rescan + confirmations
+- **Model**: Krystie (manual investigation, not subagent)
+
+### T003: Fix seeds.txt parsing (only returns 1 address)
+- **Status**: TODO
+- **Depends**: none
+- **Description**: HTTPS fetch of seeds.cryptographic-triangles.org/seeds.txt only returns 1 address. Possible comment parsing bug in net.cpp seed fetch logic.
+- **Files**: `src/net.cpp`, `/var/www/seeds/seeds.txt`
+- **Acceptance**: All 7 onion addresses returned on fetch
+- **Model**: ZAI GLM-5.1
+
+### T004: Fix Sami's PC wallet block 570 stall
+- **Status**: IN-PROGRESS
+- **Depends**: Windows binary build (DONE — built on sami-pc)
+- **Description**: Windows Qt wallet stuck at block 570. GUI bootstrap fix committed (d0fb2dc). New binary built at E:\repos\triangles_v5\build-mingw\bin\triangles-qt.exe. Needs testing.
+- **Acceptance**: Windows wallet syncs past block 570 with bootstrap
+- **Model**: Krystie (manual deployment)
+
+---
+
+## P1 — v6 Core Milestones
+
+### T010: Complete RocksDB runtime testing
+- **Status**: TODO
+- **Depends**: T001
+- **Description**: RocksDB backend compiles clean but never tested with actual blockchain data. Need to: start daemon with `-rocksdb`, let it index chain, verify block lookups work, compare performance vs LevelDB.
+- **Files**: `src/txdb.h`, `src/txdb.cpp`, `src/utxosnapshot.cpp`
+- **Acceptance**: Daemon runs with `-rocksdb` flag, processes blocks, RPC queries return correct data
+- **Model**: MiniMax M2.7
+
+### T011: Wire UTXO snapshot P2P distribution (SnapshotNet)
+- **Status**: TODO
+- **Depends**: T010
+- **Description**: `snapshotnet.cpp` exists but is placeholder. Need to implement: peer advertisement of snapshot availability, chunk transfer protocol, hash verification, integration with bootstrap flow.
+- **Files**: `src/snapshotnet.cpp`, `src/net.cpp`, `src/utxosnapshot.cpp`
+- **Acceptance**: New node can get UTXO snapshot from peers via P2P (not just HTTPS)
+- **Model**: Claude Code + MiniMax M2.7 (architecture + implementation)
+
+### T012: Implement automated checkpoint generation (DESIGN DONE)
+- **Status**: TODO
+- **Depends**: none
+- **Description**: Checkpoints exist through block 2,207,000 but are manually maintained. Need automated checkpoint generation: every N blocks, compute checkpoint hash, push to code or external manifest.
+- **Files**: `src/checkpoints.cpp`, `src/checkpoints.h`
+- **Acceptance**: New checkpoints generated automatically, committed or published
+- **Model**: Claude Code
+
+### T013: GPG signing for bootstrap artifacts
+- **Status**: TODO
+- **Depends**: none
+- **Description**: GPG key created (6913E13610F698183429CE20C2DC60618C85A159). Need to: sign every bootstrap/snapshot artifact on generation, verify signature on download, publish public key.
+- **Files**: `/usr/local/bin/auto-update.sh`, `src/bootstrap.cpp`
+- **Acceptance**: `gpg --verify` works on downloaded artifacts
+- **Model**: ZAI GLM-5.1
+
+### T014: Contabo seed Docker image hardening
+- **Status**: TODO
+- **Depends**: none
+- **Description**: Seeds are running but image is fragile. Need: proper Dockerfile with version pinning, health checks, auto-restart, log shipping, and persistent volumes.
+- **Files**: `/tmp/Dockerfile` on Contabo, `/tri/seed-{1..4}/`
+- **Acceptance**: Seeds survive host reboot, auto-restart on crash, health check endpoint
+- **Model**: ZAI GLM-5.1
+
+### T015: Network health dashboard
+- **Status**: TODO
+- **Depends**: T001, T003
+- **Description**: Operator-facing dashboard showing: block height per node, peer count, staking weight, chain sync status, seed health. Could be a simple web page served from DNS2.
+- **Files**: New — `src/rpcblockchain.cpp` (health endpoint), frontend
+- **Acceptance**: Live page showing all 7 nodes' status updated every 30s
+- **Model**: MiniMax M2.7 (design) + Claude Code (implementation)
+
+### T016: Hetzner ARM64 persistent setup
+- **Status**: TODO
+- **Depends**: none
+- **Description**: Hetzner node is running but manually configured. Need: systemd service, auto-start on boot, bootstrap automation, monitoring.
+- **Files**: systemd unit file on Hetzner
+- **Acceptance**: Node survives reboot, auto-syncs, reports health
+- **Model**: Krystie (manual, it's infra not code)
+
+---
+
+## P2 — Polish & Optimization
+
+### T020: Remove unused Gemini/Google references from codebase
+- **Status**: TODO
+- **Depends**: none
+- **Description**: Clean up any dead code, unused imports, stale comments referencing old architectures.
+- **Model**: ZAI GLM-5.1
+
+### T021: Comprehensive test suite
+- **Status**: TODO
+- **Depends**: T010
+- **Description**: Expand test coverage for: UTXO snapshot load/dump, RocksDB backend, bootstrap download, seed fetch, checkpoint verification.
+- **Files**: `src/test/`
+- **Acceptance**: `test_triangles` passes with < 5 pre-existing failures
+- **Model**: ZAI GLM-5.1 + MiniMax M2.7
+
+### T022: CI/CD pipeline for releases
+- **Status**: TODO
+- **Depends**: none
+- **Description**: GitHub Actions workflow: on tag push, build Linux x86_64 + ARM64 + Windows, create release with all binaries + checksums.
+- **Files**: `.github/workflows/build-all.yml`
+- **Acceptance**: Tag push produces release with 3 platform binaries
+- **Model**: ZAI GLM-5.1
+
+### T023: TRIdock + tri-wallet-web consolidation
+- **Status**: TODO
+- **Depends**: none
+- **Description**: TRIdock and tri-wallet-web appear to be near-duplicates. Evaluate and either consolidate or clearly separate concerns.
+- **Model**: MiniMax M2.7 (analysis)
+
+---
+
+## Completed
+
+### ✅ Windows GUI bootstrap fix (d0fb2dc)
+- Removed `#ifndef QT_GUI` guard so auto-bootstrap runs in GUI wallet
+- Added `uiInterface.InitMessage()` for progress display
+
+### ✅ Windows native build on sami-pc
+- Built `triangles-qt.exe` (26MB) and `trianglesd.exe` via MSYS2/MinGW64
+- All dependencies found natively
+
+### ✅ RocksDB integration complete (ac9c6fb)
+- CActiveTxDB wrapper, dual-backend support, compiles clean
+
+### ✅ All nodes updated to v5.9.7.0
+- DNS2, DNS3, Hetzner, Contabo seeds all running latest
+
+### ✅ Bootstrap infrastructure live
+- HTTPS at bootstrap.cryptographic-triangles.org
+- Tor hidden service serving nginx on port 8085
+- Seeds.txt with 7 onion nodes

docs/krystie-runner-log.md

@@ -0,0 +1,7 @@
+# Krystie runner log
+
+This file records autonomous-runner activity. Each entry is a doc-only
+edit produced by the demo worker; once OpenClaw is wired in this log
+will be replaced by real work.
+
+- [2026-04-29T06:57:30Z] triangles_v5#1 — Smoke-test the Krystie loop runner

scripts/ibd-smoke-test.sh

@@ -0,0 +1,210 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Fresh-datadir IBD smoke test for TRI.
+# Goal: detect the classic "starts from zero but stalls early / loops around 570"
+# failure mode, and verify that sync keeps making forward progress.
+#
+# Example:
+#   bash scripts/ibd-smoke-test.sh \
+#     --bin ./build/src/trianglesd \
+#     --bootstrap-url http://100.104.4.5:8085/triangles-bootstrap.tar.gz \
+#     --addnode 74.208.167.19 --addnode 194.233.88.206
+
+BIN="${BIN:-./build/src/trianglesd}"
+TIMEOUT_SECONDS="${TIMEOUT_SECONDS:-1800}"   # 30 minutes target window
+POLL_SECONDS="${POLL_SECONDS:-15}"
+STALL_WINDOW_SECONDS="${STALL_WINDOW_SECONDS:-180}"
+BOOTSTRAP_URL="${BOOTSTRAP_URL:-}"
+WORKDIR="${WORKDIR:-}"
+RPC_PORT="${RPC_PORT:-19192}"
+P2P_PORT="${P2P_PORT:-24193}"
+MIN_EXPECTED_HEIGHT="${MIN_EXPECTED_HEIGHT:-5000}"
+ALLOW_IBD="${ALLOW_IBD:-0}"
+WHITELIST="${WHITELIST:-127.0.0.1}"
+ADDNODES=()
+
+usage() {
+  cat <<EOF
+Usage: $0 [options]
+
+Options:
+  --bin PATH               trianglesd binary (default: $BIN)
+  --bootstrap-url URL      optional bootstrap tar.gz URL to preload
+  --workdir PATH           use an explicit temp workdir
+  --rpc-port N             RPC port for test node (default: $RPC_PORT)
+  --p2p-port N             P2P port for test node (default: $P2P_PORT)
+  --timeout N              total test timeout seconds (default: $TIMEOUT_SECONDS)
+  --poll N                 poll interval seconds (default: $POLL_SECONDS)
+  --stall-window N         no-progress failure window seconds (default: $STALL_WINDOW_SECONDS)
+  --min-height N           minimum expected height/progress floor (default: $MIN_EXPECTED_HEIGHT)
+  --allow-ibd              allow test to pass while still in IBD if progress is strong
+  --addnode HOST           trusted peer to add (repeatable)
+  -h, --help               show this help
+EOF
+}
+
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --bin) BIN="$2"; shift 2 ;;
+    --bootstrap-url) BOOTSTRAP_URL="$2"; shift 2 ;;
+    --workdir) WORKDIR="$2"; shift 2 ;;
+    --rpc-port) RPC_PORT="$2"; shift 2 ;;
+    --p2p-port) P2P_PORT="$2"; shift 2 ;;
+    --timeout) TIMEOUT_SECONDS="$2"; shift 2 ;;
+    --poll) POLL_SECONDS="$2"; shift 2 ;;
+    --stall-window) STALL_WINDOW_SECONDS="$2"; shift 2 ;;
+    --min-height) MIN_EXPECTED_HEIGHT="$2"; shift 2 ;;
+    --allow-ibd) ALLOW_IBD=1; shift ;;
+    --addnode) ADDNODES+=("$2"); shift 2 ;;
+    -h|--help) usage; exit 0 ;;
+    *) echo "unknown arg: $1" >&2; usage; exit 2 ;;
+  esac
+done
+
+if [[ ! -x "$BIN" ]]; then
+  echo "ERROR: trianglesd binary not executable: $BIN" >&2
+  exit 2
+fi
+
+if [[ -z "$WORKDIR" ]]; then
+  WORKDIR="$(mktemp -d /tmp/tri-ibd-smoke-XXXXXX)"
+fi
+DATADIR="$WORKDIR/datadir"
+mkdir -p "$DATADIR"
+
+RPCUSER="tri_test"
+RPCPASSWORD="tri_test_$(date +%s)_$RANDOM"
+CONF="$DATADIR/triangles.conf"
+cat > "$CONF" <<EOF
+server=1
+daemon=1
+staking=0
+listen=1
+discover=0
+upnp=0
+tor=0
+irc=0
+dnsseed=1
+checkpoints=1
+rpcuser=$RPCUSER
+rpcpassword=$RPCPASSWORD
+rpcport=$RPC_PORT
+port=$P2P_PORT
+maxconnections=32
+whitelist=$WHITELIST
+logtimestamps=1
+EOF
+
+for host in "${ADDNODES[@]}"; do
+  echo "addnode=$host" >> "$CONF"
+done
+
+cleanup() {
+  "$BIN" -datadir="$DATADIR" -conf="$CONF" stop >/dev/null 2>&1 || true
+  sleep 2 || true
+  pkill -f "$DATADIR" >/dev/null 2>&1 || true
+}
+trap cleanup EXIT
+
+if [[ -n "$BOOTSTRAP_URL" ]]; then
+  echo "[ibd-test] downloading bootstrap: $BOOTSTRAP_URL"
+  curl -L --fail --max-time 1800 "$BOOTSTRAP_URL" -o "$WORKDIR/bootstrap.tar.gz"
+  tar xzf "$WORKDIR/bootstrap.tar.gz" -C "$DATADIR"
+  rm -f "$DATADIR/database/log."* "$DATADIR/txleveldb/LOCK" "$DATADIR/smsgDB/LOCK" 2>/dev/null || true
+fi
+
+echo "[ibd-test] starting node from datadir: $DATADIR"
+"$BIN" -daemon -datadir="$DATADIR" -conf="$CONF" >/dev/null
+sleep 6
+
+rpc() {
+  local method="$1"
+  local params="${2:-[]}"
+  curl -sS --fail --user "$RPCUSER:$RPCPASSWORD" \
+    --data-binary "{\"jsonrpc\":\"1.0\",\"id\":\"ibd\",\"method\":\"$method\",\"params\":$params}" \
+    -H 'content-type: text/plain;' "http://127.0.0.1:$RPC_PORT/"
+}
+
+extract_json() {
+  python3 -c 'import json,sys; obj=json.load(sys.stdin); print(obj["result"])'
+}
+
+extract_field() {
+  local field="$1"
+  python3 -c 'import json,sys; obj=json.load(sys.stdin); val=obj["result"].get(sys.argv[1]); print(val if val is not None else "")' "$field"
+}
+
+start_ts=$(date +%s)
+last_progress_ts=$start_ts
+last_height=-1
+samples=0
+same_570_loops=0
+best_height=0
+
+while true; do
+  now=$(date +%s)
+  elapsed=$((now - start_ts))
+  if (( elapsed > TIMEOUT_SECONDS )); then
+    echo "FAIL: timeout after ${elapsed}s"
+    break
+  fi
+
+  if info_json="$(rpc getblockchaininfo 2>/dev/null)"; then
+    height=$(printf '%s' "$info_json" | extract_field blocks)
+    ibd=$(printf '%s' "$info_json" | extract_field initialblockdownload)
+    headers=$(printf '%s' "$info_json" | extract_field headers)
+  else
+    height=""
+    ibd=""
+    headers=""
+  fi
+
+  peers=0
+  if peer_json="$(rpc getconnectioncount 2>/dev/null)"; then
+    peers=$(printf '%s' "$peer_json" | extract_json)
+  fi
+
+  if [[ -n "$height" && "$height" != "$last_height" ]]; then
+    last_progress_ts=$now
+    last_height="$height"
+    if (( height > best_height )); then
+      best_height=$height
+    fi
+  fi
+
+  log_file="$DATADIR/debug.log"
+  if [[ -f "$log_file" ]]; then
+    loop_hits=$(tail -n 400 "$log_file" | grep -c 'start=571' || true)
+    if (( loop_hits >= 3 )); then
+      same_570_loops=$loop_hits
+    fi
+  fi
+
+  echo "[ibd-test] t=${elapsed}s height=${height:-?} headers=${headers:-?} ibd=${ibd:-?} peers=$peers best=$best_height"
+
+  if [[ -n "$height" ]] && (( best_height >= MIN_EXPECTED_HEIGHT )) && [[ "$ibd" == "False" || "$ibd" == "false" ]]; then
+    echo "PASS: left IBD and reached height $best_height"
+    exit 0
+  fi
+
+  if [[ "$ALLOW_IBD" == "1" && -n "$height" ]] && (( best_height >= MIN_EXPECTED_HEIGHT )); then
+    echo "PASS: strong sync progress observed (height $best_height) even though IBD remains true"
+    exit 0
+  fi
+
+  if (( now - last_progress_ts > STALL_WINDOW_SECONDS )); then
+    echo "FAIL: no block-height progress for $((now - last_progress_ts))s"
+    if (( same_570_loops > 0 )); then
+      echo "HINT: detected repeated start=571 loop pattern ($same_570_loops hits in recent log tail)"
+    fi
+    echo "--- debug tail ---"
+    tail -n 120 "$log_file" 2>/dev/null || true
+    exit 1
+  fi
+
+  ((samples++)) || true
+  sleep "$POLL_SECONDS"
+done
+
+exit 1

scripts/sign-snapshot.sh

@@ -0,0 +1,182 @@
+#!/usr/bin/env bash
+# ============================================================================
+# Triangles UTXO Snapshot Signer
+# ============================================================================
+# Generates a UTXO snapshot from the current node, signs its provenance
+# message with the wallet's signing address, and writes the signed manifest.
+#
+# Usage:
+#   ./sign-snapshot.sh [snapshot-name]
+#
+# Default snapshot name: tri-utxo-snapshot-<timestamp>.utx
+# Output (in this dir):
+#   <snapshot-name>              - the UTXO snapshot binary
+#   <snapshot-name>.sig          - base64 signature
+#   <snapshot-name>.msg          - signed message (human-readable provenance)
+#   <snapshot-name>.manifest.json - signed manifest (drop into bootstrap dir)
+#   <snapshot-name>.pubkey       - signing address
+#
+# Requirements:
+#   - trianglesd running with RPC enabled
+#   - wallet unlocked (or passphrase set in triangles.conf)
+#   - jq installed (apt: jq / brew: jq)
+#
+# Verification:
+#   ./sign-snapshot.sh verify <manifest.json> <snapshot-file>
+#   OR via RPC:
+#     verifymessage <addr> <sig> <msg>
+# ============================================================================
+
+set -euo pipefail
+
+# ----- Config (override via env) -----
+RPC_USER="${RPC_USER:-trianglesrpc}"
+RPC_PASS="${RPC_PASS:-2KVK2FvLZBW9Hxv4a2Uj3dMRDAXdh4ei6S5tdZ3z2Mme}"
+RPC_HOST="${RPC_HOST:-127.0.0.1}"
+RPC_PORT="${RPC_PORT:-19112}"
+SIGN_ACCOUNT="${SIGN_ACCOUNT:-}"      # blank = use default account
+NHEADERS="${NHEADERS:-2000}"
+SNAP_DIR="${SNAP_DIR:-.}"
+
+# ----- Helpers -----
+rpc() {
+    local method="$1"; shift
+    local params="$1"; shift || true
+    curl -s --user "${RPC_USER}:${RPC_PASS}" \
+         -X POST -H 'Content-Type: application/json' \
+         --data "{\"jsonrpc\":\"1.0\",\"method\":\"${method}\",\"params\":${params}}" \
+         "http://${RPC_HOST}:${RPC_PORT}/"
+}
+
+rpc_field() {
+    local method="$1"; shift
+    local params="$1"; shift || true
+    local field="$1"; shift
+    rpc "$method" "$params" | jq -r ".result.${field} // empty"
+}
+
+sha256_file() { sha256sum "$1" | awk '{print $1}'; }
+
+# ----- Verify mode -----
+if [[ "${1:-}" == "verify" ]]; then
+    MANIFEST="${2:?usage: $0 verify <manifest.json> <snapshot-file>}"
+    SNAP="${3:?usage: $0 verify <manifest.json> <snapshot-file>}"
+    ADDR=$(jq -r '.signing_address' "$MANIFEST")
+    SIG=$(jq -r '.signature' "$MANIFEST")
+    MSG=$(jq -r '.message' "$MANIFEST")
+    EXPECTED_SHA=$(jq -r '.snapshot_sha256' "$MANIFEST")
+
+    echo "==> Verifying snapshot provenance..."
+    echo "    Address:  $ADDR"
+    echo "    Message:  $MSG"
+
+    ACTUAL_SHA=$(sha256_file "$SNAP")
+    if [[ "$ACTUAL_SHA" != "$EXPECTED_SHA" ]]; then
+        echo "FAIL: snapshot sha256 mismatch"
+        echo "  expected: $EXPECTED_SHA"
+        echo "  actual:   $ACTUAL_SHA"
+        exit 1
+    fi
+    echo "OK: sha256 matches"
+
+    PARAMS=$(jq -nc --arg a "$ADDR" --arg s "$SIG" --arg m "$MSG" \
+                   '[$a, $s, $m]')
+    RESULT=$(rpc verifymessage "$PARAMS" | jq -r '.result')
+    if [[ "$RESULT" == "true" ]]; then
+        echo "OK: signature valid — snapshot was signed by $ADDR"
+        exit 0
+    else
+        echo "FAIL: signature does not verify"
+        exit 1
+    fi
+fi
+
+# ----- Generate + sign -----
+SNAP_NAME="${1:-tri-utxo-snapshot-$(date -u +%Y%m%dT%H%M%SZ).utx}"
+SNAP_PATH="${SNAP_DIR}/${SNAP_NAME}"
+
+echo "==> Step 1/5: querying chain state..."
+HEIGHT=$(rpc_field getblockcount '[]' '' || echo "")
+if [[ -z "$HEIGHT" ]]; then
+    rpc_field getblockcount '[]' ''  # re-run for error visibility
+    echo "FAIL: RPC getblockcount failed"; exit 1
+fi
+HEIGHT=$(rpc getblockcount '[]' | jq -r '.result')
+BLOCKHASH=$(rpc getbestblockhash '[]' | jq -r '.result')
+echo "    height:   $HEIGHT"
+echo "    blockhash:$BLOCKHASH"
+
+echo "==> Step 2/5: selecting signing address..."
+if [[ -n "$SIGN_ACCOUNT" ]]; then
+    PARAMS=$(jq -nc --arg a "$SIGN_ACCOUNT" '[$a]')
+else
+    PARAMS='[""]'
+fi
+ADDR=$(rpc getaccountaddress "$PARAMS" | jq -r '.result')
+echo "    signer:   $ADDR"
+
+echo "==> Step 3/5: dumping UTXO snapshot..."
+PARAMS=$(jq -nc --arg f "$SNAP_PATH" --argjson n "$NHEADERS" '[$f, $n]')
+DUMP_RESULT=$(rpc dumputxoset "$PARAMS")
+echo "$DUMP_RESULT" | jq -r '.result // .error.message // .'
+SIZE=$(echo "$DUMP_RESULT" | jq -r '.result.file_size // empty')
+if [[ -z "$SIZE" ]]; then
+    echo "FAIL: dumputxoset failed"; exit 1
+fi
+echo "    size:     $SIZE bytes"
+
+echo "==> Step 4/5: signing provenance message..."
+SHA=$(sha256_file "$SNAP_PATH")
+MSG="Triangles UTXO Snapshot $(date -u +%Y-%m-%d): height=$HEIGHT hash=$BLOCKHASH sha256=$SHA"
+echo "    message:  $MSG"
+PARAMS=$(jq -nc --arg a "$ADDR" --arg m "$MSG" '[$a, $m]')
+SIG=$(rpc signmessage "$PARAMS" | jq -r '.result')
+echo "    sig:      $SIG"
+
+echo "==> Step 5/5: writing manifest + sidecars..."
+MANIFEST_PATH="${SNAP_PATH}.manifest.json"
+jq -n \
+   --arg name "$SNAP_NAME" \
+   --arg height "$HEIGHT" \
+   --arg hash "$BLOCKHASH" \
+   --arg sha "$SHA" \
+   --arg size "$SIZE" \
+   --arg msg "$MSG" \
+   --arg sig "$SIG" \
+   --arg addr "$ADDR" \
+   --arg ts "$(date -u +%Y-%m-%dT%H:%M:%SZ)" \
+   --arg ver "$(rpc getnetworkinfo '[]' | jq -r '.result.version // "unknown"')" \
+   '{
+        schema: "triangles-utxo-snapshot-signed/v1",
+        name: $name,
+        generated_utc: $ts,
+        daemon_version: $ver,
+        chain_tip: { height: ($height | tonumber), blockhash: $hash },
+        snapshot_sha256: $sha,
+        snapshot_bytes: ($size | tonumber),
+        signing_address: $addr,
+        message: $msg,
+        signature: $sig
+    }' > "$MANIFEST_PATH"
+
+# Sidecar files for easy reading
+echo "$ADDR"  > "${SNAP_PATH}.pubkey"
+echo "$MSG"   > "${SNAP_PATH}.msg"
+echo "$SIG"   > "${SNAP_PATH}.sig"
+
+echo ""
+echo "============================================================"
+echo "Snapshot signed."
+echo "  snapshot:      $SNAP_PATH"
+echo "  signature:     ${SNAP_PATH}.sig"
+echo "  manifest:      $MANIFEST_PATH"
+echo "  signer:        $ADDR"
+echo "  sha256:        $SHA"
+echo "============================================================"
+echo ""
+echo "To verify on any node:"
+echo "  verifymessage $ADDR \\"
+echo "    '$SIG' \\"
+echo "    '$MSG'"
+echo ""
+echo "Or run: $0 verify $MANIFEST_PATH $SNAP_PATH"

src/CMakeLists.txt

@@ -42,6 +42,7 @@ set(CORE_SOURCES
     bootstrap.cpp
     checkpoints.cpp
     crypter.cpp
+    hdwallet.cpp
     crypto_ecdh.cpp
     crypto_ecdsa.cpp
     db.cpp
@@ -306,6 +307,7 @@ if(BUILD_QT)
         qt/trianglesunits.cpp
         qt/qvaluecombobox.cpp
         qt/askpassphrasedialog.cpp
+        qt/hdseeddialog.cpp
         qt/notificator.cpp
         qt/qtipcserver.cpp
         qt/rpcconsole.cpp

src/bip39_english.h

@@ -0,0 +1,263 @@
+// BIP39 English wordlist (2048 words, canonical). Auto-generated; do not edit.
+#ifndef TRIANGLES_BIP39_ENGLISH_H
+#define TRIANGLES_BIP39_ENGLISH_H
+static const char* const BIP39_WORDLIST_EN[2048] = {
+"abandon","ability","able","about","above","absent","absorb","abstract",
+"absurd","abuse","access","accident","account","accuse","achieve","acid",
+"acoustic","acquire","across","act","action","actor","actress","actual",
+"adapt","add","addict","address","adjust","admit","adult","advance",
+"advice","aerobic","affair","afford","afraid","again","age","agent",
+"agree","ahead","aim","air","airport","aisle","alarm","album",
+"alcohol","alert","alien","all","alley","allow","almost","alone",
+"alpha","already","also","alter","always","amateur","amazing","among",
+"amount","amused","analyst","anchor","ancient","anger","angle","angry",
+"animal","ankle","announce","annual","another","answer","antenna","antique",
+"anxiety","any","apart","apology","appear","apple","approve","april",
+"arch","arctic","area","arena","argue","arm","armed","armor",
+"army","around","arrange","arrest","arrive","arrow","art","artefact",
+"artist","artwork","ask","aspect","assault","asset","assist","assume",
+"asthma","athlete","atom","attack","attend","attitude","attract","auction",
+"audit","august","aunt","author","auto","autumn","average","avocado",
+"avoid","awake","aware","away","awesome","awful","awkward","axis",
+"baby","bachelor","bacon","badge","bag","balance","balcony","ball",
+"bamboo","banana","banner","bar","barely","bargain","barrel","base",
+"basic","basket","battle","beach","bean","beauty","because","become",
+"beef","before","begin","behave","behind","believe","below","belt",
+"bench","benefit","best","betray","better","between","beyond","bicycle",
+"bid","bike","bind","biology","bird","birth","bitter","black",
+"blade","blame","blanket","blast","bleak","bless","blind","blood",
+"blossom","blouse","blue","blur","blush","board","boat","body",
+"boil","bomb","bone","bonus","book","boost","border","boring",
+"borrow","boss","bottom","bounce","box","boy","bracket","brain",
+"brand","brass","brave","bread","breeze","brick","bridge","brief",
+"bright","bring","brisk","broccoli","broken","bronze","broom","brother",
+"brown","brush","bubble","buddy","budget","buffalo","build","bulb",
+"bulk","bullet","bundle","bunker","burden","burger","burst","bus",
+"business","busy","butter","buyer","buzz","cabbage","cabin","cable",
+"cactus","cage","cake","call","calm","camera","camp","can",
+"canal","cancel","candy","cannon","canoe","canvas","canyon","capable",
+"capital","captain","car","carbon","card","cargo","carpet","carry",
+"cart","case","cash","casino","castle","casual","cat","catalog",
+"catch","category","cattle","caught","cause","caution","cave","ceiling",
+"celery","cement","census","century","cereal","certain","chair","chalk",
+"champion","change","chaos","chapter","charge","chase","chat","cheap",
+"check","cheese","chef","cherry","chest","chicken","chief","child",
+"chimney","choice","choose","chronic","chuckle","chunk","churn","cigar",
+"cinnamon","circle","citizen","city","civil","claim","clap","clarify",
+"claw","clay","clean","clerk","clever","click","client","cliff",
+"climb","clinic","clip","clock","clog","close","cloth","cloud",
+"clown","club","clump","cluster","clutch","coach","coast","coconut",
+"code","coffee","coil","coin","collect","color","column","combine",
+"come","comfort","comic","common","company","concert","conduct","confirm",
+"congress","connect","consider","control","convince","cook","cool","copper",
+"copy","coral","core","corn","correct","cost","cotton","couch",
+"country","couple","course","cousin","cover","coyote","crack","cradle",
+"craft","cram","crane","crash","crater","crawl","crazy","cream",
+"credit","creek","crew","cricket","crime","crisp","critic","crop",
+"cross","crouch","crowd","crucial","cruel","cruise","crumble","crunch",
+"crush","cry","crystal","cube","culture","cup","cupboard","curious",
+"current","curtain","curve","cushion","custom","cute","cycle","dad",
+"damage","damp","dance","danger","daring","dash","daughter","dawn",
+"day","deal","debate","debris","decade","december","decide","decline",
+"decorate","decrease","deer","defense","define","defy","degree","delay",
+"deliver","demand","demise","denial","dentist","deny","depart","depend",
+"deposit","depth","deputy","derive","describe","desert","design","desk",
+"despair","destroy","detail","detect","develop","device","devote","diagram",
+"dial","diamond","diary","dice","diesel","diet","differ","digital",
+"dignity","dilemma","dinner","dinosaur","direct","dirt","disagree","discover",
+"disease","dish","dismiss","disorder","display","distance","divert","divide",
+"divorce","dizzy","doctor","document","dog","doll","dolphin","domain",
+"donate","donkey","donor","door","dose","double","dove","draft",
+"dragon","drama","drastic","draw","dream","dress","drift","drill",
+"drink","drip","drive","drop","drum","dry","duck","dumb",
+"dune","during","dust","dutch","duty","dwarf","dynamic","eager",
+"eagle","early","earn","earth","easily","east","easy","echo",
+"ecology","economy","edge","edit","educate","effort","egg","eight",
+"either","elbow","elder","electric","elegant","element","elephant","elevator",
+"elite","else","embark","embody","embrace","emerge","emotion","employ",
+"empower","empty","enable","enact","end","endless","endorse","enemy",
+"energy","enforce","engage","engine","enhance","enjoy","enlist","enough",
+"enrich","enroll","ensure","enter","entire","entry","envelope","episode",
+"equal","equip","era","erase","erode","erosion","error","erupt",
+"escape","essay","essence","estate","eternal","ethics","evidence","evil",
+"evoke","evolve","exact","example","excess","exchange","excite","exclude",
+"excuse","execute","exercise","exhaust","exhibit","exile","exist","exit",
+"exotic","expand","expect","expire","explain","expose","express","extend",
+"extra","eye","eyebrow","fabric","face","faculty","fade","faint",
+"faith","fall","false","fame","family","famous","fan","fancy",
+"fantasy","farm","fashion","fat","fatal","father","fatigue","fault",
+"favorite","feature","february","federal","fee","feed","feel","female",
+"fence","festival","fetch","fever","few","fiber","fiction","field",
+"figure","file","film","filter","final","find","fine","finger",
+"finish","fire","firm","first","fiscal","fish","fit","fitness",
+"fix","flag","flame","flash","flat","flavor","flee","flight",
+"flip","float","flock","floor","flower","fluid","flush","fly",
+"foam","focus","fog","foil","fold","follow","food","foot",
+"force","forest","forget","fork","fortune","forum","forward","fossil",
+"foster","found","fox","fragile","frame","frequent","fresh","friend",
+"fringe","frog","front","frost","frown","frozen","fruit","fuel",
+"fun","funny","furnace","fury","future","gadget","gain","galaxy",
+"gallery","game","gap","garage","garbage","garden","garlic","garment",
+"gas","gasp","gate","gather","gauge","gaze","general","genius",
+"genre","gentle","genuine","gesture","ghost","giant","gift","giggle",
+"ginger","giraffe","girl","give","glad","glance","glare","glass",
+"glide","glimpse","globe","gloom","glory","glove","glow","glue",
+"goat","goddess","gold","good","goose","gorilla","gospel","gossip",
+"govern","gown","grab","grace","grain","grant","grape","grass",
+"gravity","great","green","grid","grief","grit","grocery","group",
+"grow","grunt","guard","guess","guide","guilt","guitar","gun",
+"gym","habit","hair","half","hammer","hamster","hand","happy",
+"harbor","hard","harsh","harvest","hat","have","hawk","hazard",
+"head","health","heart","heavy","hedgehog","height","hello","helmet",
+"help","hen","hero","hidden","high","hill","hint","hip",
+"hire","history","hobby","hockey","hold","hole","holiday","hollow",
+"home","honey","hood","hope","horn","horror","horse","hospital",
+"host","hotel","hour","hover","hub","huge","human","humble",
+"humor","hundred","hungry","hunt","hurdle","hurry","hurt","husband",
+"hybrid","ice","icon","idea","identify","idle","ignore","ill",
+"illegal","illness","image","imitate","immense","immune","impact","impose",
+"improve","impulse","inch","include","income","increase","index","indicate",
+"indoor","industry","infant","inflict","inform","inhale","inherit","initial",
+"inject","injury","inmate","inner","innocent","input","inquiry","insane",
+"insect","inside","inspire","install","intact","interest","into","invest",
+"invite","involve","iron","island","isolate","issue","item","ivory",
+"jacket","jaguar","jar","jazz","jealous","jeans","jelly","jewel",
+"job","join","joke","journey","joy","judge","juice","jump",
+"jungle","junior","junk","just","kangaroo","keen","keep","ketchup",
+"key","kick","kid","kidney","kind","kingdom","kiss","kit",
+"kitchen","kite","kitten","kiwi","knee","knife","knock","know",
+"lab","label","labor","ladder","lady","lake","lamp","language",
+"laptop","large","later","latin","laugh","laundry","lava","law",
+"lawn","lawsuit","layer","lazy","leader","leaf","learn","leave",
+"lecture","left","leg","legal","legend","leisure","lemon","lend",
+"length","lens","leopard","lesson","letter","level","liar","liberty",
+"library","license","life","lift","light","like","limb","limit",
+"link","lion","liquid","list","little","live","lizard","load",
+"loan","lobster","local","lock","logic","lonely","long","loop",
+"lottery","loud","lounge","love","loyal","lucky","luggage","lumber",
+"lunar","lunch","luxury","lyrics","machine","mad","magic","magnet",
+"maid","mail","main","major","make","mammal","man","manage",
+"mandate","mango","mansion","manual","maple","marble","march","margin",
+"marine","market","marriage","mask","mass","master","match","material",
+"math","matrix","matter","maximum","maze","meadow","mean","measure",
+"meat","mechanic","medal","media","melody","melt","member","memory",
+"mention","menu","mercy","merge","merit","merry","mesh","message",
+"metal","method","middle","midnight","milk","million","mimic","mind",
+"minimum","minor","minute","miracle","mirror","misery","miss","mistake",
+"mix","mixed","mixture","mobile","model","modify","mom","moment",
+"monitor","monkey","monster","month","moon","moral","more","morning",
+"mosquito","mother","motion","motor","mountain","mouse","move","movie",
+"much","muffin","mule","multiply","muscle","museum","mushroom","music",
+"must","mutual","myself","mystery","myth","naive","name","napkin",
+"narrow","nasty","nation","nature","near","neck","need","negative",
+"neglect","neither","nephew","nerve","nest","net","network","neutral",
+"never","news","next","nice","night","noble","noise","nominee",
+"noodle","normal","north","nose","notable","note","nothing","notice",
+"novel","now","nuclear","number","nurse","nut","oak","obey",
+"object","oblige","obscure","observe","obtain","obvious","occur","ocean",
+"october","odor","off","offer","office","often","oil","okay",
+"old","olive","olympic","omit","once","one","onion","online",
+"only","open","opera","opinion","oppose","option","orange","orbit",
+"orchard","order","ordinary","organ","orient","original","orphan","ostrich",
+"other","outdoor","outer","output","outside","oval","oven","over",
+"own","owner","oxygen","oyster","ozone","pact","paddle","page",
+"pair","palace","palm","panda","panel","panic","panther","paper",
+"parade","parent","park","parrot","party","pass","patch","path",
+"patient","patrol","pattern","pause","pave","payment","peace","peanut",
+"pear","peasant","pelican","pen","penalty","pencil","people","pepper",
+"perfect","permit","person","pet","phone","photo","phrase","physical",
+"piano","picnic","picture","piece","pig","pigeon","pill","pilot",
+"pink","pioneer","pipe","pistol","pitch","pizza","place","planet",
+"plastic","plate","play","please","pledge","pluck","plug","plunge",
+"poem","poet","point","polar","pole","police","pond","pony",
+"pool","popular","portion","position","possible","post","potato","pottery",
+"poverty","powder","power","practice","praise","predict","prefer","prepare",
+"present","pretty","prevent","price","pride","primary","print","priority",
+"prison","private","prize","problem","process","produce","profit","program",
+"project","promote","proof","property","prosper","protect","proud","provide",
+"public","pudding","pull","pulp","pulse","pumpkin","punch","pupil",
+"puppy","purchase","purity","purpose","purse","push","put","puzzle",
+"pyramid","quality","quantum","quarter","question","quick","quit","quiz",
+"quote","rabbit","raccoon","race","rack","radar","radio","rail",
+"rain","raise","rally","ramp","ranch","random","range","rapid",
+"rare","rate","rather","raven","raw","razor","ready","real",
+"reason","rebel","rebuild","recall","receive","recipe","record","recycle",
+"reduce","reflect","reform","refuse","region","regret","regular","reject",
+"relax","release","relief","rely","remain","remember","remind","remove",
+"render","renew","rent","reopen","repair","repeat","replace","report",
+"require","rescue","resemble","resist","resource","response","result","retire",
+"retreat","return","reunion","reveal","review","reward","rhythm","rib",
+"ribbon","rice","rich","ride","ridge","rifle","right","rigid",
+"ring","riot","ripple","risk","ritual","rival","river","road",
+"roast","robot","robust","rocket","romance","roof","rookie","room",
+"rose","rotate","rough","round","route","royal","rubber","rude",
+"rug","rule","run","runway","rural","sad","saddle","sadness",
+"safe","sail","salad","salmon","salon","salt","salute","same",
+"sample","sand","satisfy","satoshi","sauce","sausage","save","say",
+"scale","scan","scare","scatter","scene","scheme","school","science",
+"scissors","scorpion","scout","scrap","screen","script","scrub","sea",
+"search","season","seat","second","secret","section","security","seed",
+"seek","segment","select","sell","seminar","senior","sense","sentence",
+"series","service","session","settle","setup","seven","shadow","shaft",
+"shallow","share","shed","shell","sheriff","shield","shift","shine",
+"ship","shiver","shock","shoe","shoot","shop","short","shoulder",
+"shove","shrimp","shrug","shuffle","shy","sibling","sick","side",
+"siege","sight","sign","silent","silk","silly","silver","similar",
+"simple","since","sing","siren","sister","situate","six","size",
+"skate","sketch","ski","skill","skin","skirt","skull","slab",
+"slam","sleep","slender","slice","slide","slight","slim","slogan",
+"slot","slow","slush","small","smart","smile","smoke","smooth",
+"snack","snake","snap","sniff","snow","soap","soccer","social",
+"sock","soda","soft","solar","soldier","solid","solution","solve",
+"someone","song","soon","sorry","sort","soul","sound","soup",
+"source","south","space","spare","spatial","spawn","speak","special",
+"speed","spell","spend","sphere","spice","spider","spike","spin",
+"spirit","split","spoil","sponsor","spoon","sport","spot","spray",
+"spread","spring","spy","square","squeeze","squirrel","stable","stadium",
+"staff","stage","stairs","stamp","stand","start","state","stay",
+"steak","steel","stem","step","stereo","stick","still","sting",
+"stock","stomach","stone","stool","story","stove","strategy","street",
+"strike","strong","struggle","student","stuff","stumble","style","subject",
+"submit","subway","success","such","sudden","suffer","sugar","suggest",
+"suit","summer","sun","sunny","sunset","super","supply","supreme",
+"sure","surface","surge","surprise","surround","survey","suspect","sustain",
+"swallow","swamp","swap","swarm","swear","sweet","swift","swim",
+"swing","switch","sword","symbol","symptom","syrup","system","table",
+"tackle","tag","tail","talent","talk","tank","tape","target",
+"task","taste","tattoo","taxi","teach","team","tell","ten",
+"tenant","tennis","tent","term","test","text","thank","that",
+"theme","then","theory","there","they","thing","this","thought",
+"three","thrive","throw","thumb","thunder","ticket","tide","tiger",
+"tilt","timber","time","tiny","tip","tired","tissue","title",
+"toast","tobacco","today","toddler","toe","together","toilet","token",
+"tomato","tomorrow","tone","tongue","tonight","tool","tooth","top",
+"topic","topple","torch","tornado","tortoise","toss","total","tourist",
+"toward","tower","town","toy","track","trade","traffic","tragic",
+"train","transfer","trap","trash","travel","tray","treat","tree",
+"trend","trial","tribe","trick","trigger","trim","trip","trophy",
+"trouble","truck","true","truly","trumpet","trust","truth","try",
+"tube","tuition","tumble","tuna","tunnel","turkey","turn","turtle",
+"twelve","twenty","twice","twin","twist","two","type","typical",
+"ugly","umbrella","unable","unaware","uncle","uncover","under","undo",
+"unfair","unfold","unhappy","uniform","unique","unit","universe","unknown",
+"unlock","until","unusual","unveil","update","upgrade","uphold","upon",
+"upper","upset","urban","urge","usage","use","used","useful",
+"useless","usual","utility","vacant","vacuum","vague","valid","valley",
+"valve","van","vanish","vapor","various","vast","vault","vehicle",
+"velvet","vendor","venture","venue","verb","verify","version","very",
+"vessel","veteran","viable","vibrant","vicious","victory","video","view",
+"village","vintage","violin","virtual","virus","visa","visit","visual",
+"vital","vivid","vocal","voice","void","volcano","volume","vote",
+"voyage","wage","wagon","wait","walk","wall","walnut","want",
+"warfare","warm","warrior","wash","wasp","waste","water","wave",
+"way","wealth","weapon","wear","weasel","weather","web","wedding",
+"weekend","weird","welcome","west","wet","whale","what","wheat",
+"wheel","when","where","whip","whisper","wide","width","wife",
+"wild","will","win","window","wine","wing","wink","winner",
+"winter","wire","wisdom","wise","wish","witness","wolf","woman",
+"wonder","wood","wool","word","work","world","worry","worth",
+"wrap","wreck","wrestle","wrist","write","wrong","yard","year",
+"yellow","you","young","youth","zebra","zero","zone","zoo",
+
+};
+#endif

src/bootstrap.cpp

@@ -792,8 +792,11 @@ bool DownloadUtxoSnapshot(const std::string& host,
 
     printf("Bootstrap: UTXO snapshot downloaded, loading into database...\n");
 
-    // Load the snapshot into a fresh active chain DB
-    if (!UtxoSnapshot::LoadSnapshot(tmpPath, dataDir, strError)) {
+    // Load the snapshot into a fresh active chain DB. P2P-delivered
+    // snapshots keep the checkpoint gate on (requireCheckpoint=true) —
+    // the manifest height+hash already passed IsKnownCheckpoint above,
+    // and we re-check here as defense in depth.
+    if (!UtxoSnapshot::LoadSnapshot(tmpPath, dataDir, strError, /*requireCheckpoint=*/true)) {
         fs::remove(tmpPath);
         return false;
     }

src/checkpoints.cpp

@@ -25,13 +25,18 @@ namespace Checkpoints
         {  2101, uint256("0xd4ea1ac45b63c8162a7fc8033cec441db8d532ba988202849d7831e32fe2d059")},
         {  2847, uint256("0xb5015e2835f13fd3bb6135cff9b31ac33310c9b77d694bdb592b8680d98d018e")},
         {  3589, uint256("0xb12a2ca3db4e288cada98aa2139768532bd4474c49dd7b8158031032dac08d51")},
-        {  3935, uint256("0xe16290c9757d1368b8d7c35de4f8f70c2c9f9c785b667df0c3bff85086ca6")},
+        {  3935, uint256("0xe16290c9757d1368b8d7c35de07d4f8f70c2c9f9c785b667df0c3bff85086ca6")},
         {  5703, uint256("0x587db07bb2172ad7db72c5fabc2518262a1b27f503f99417510b2c6fafa6557b")},
         {  9000, uint256("0x00000000019ef6b2f5e7c324c7d083ee94502305aabc7e9cd73a7fb2a57bb8db")},
         {  9001, uint256("0x6d5c6c5f201cc9e59659ee0da30d1430dc6bf3b12a8ff4c3864ab8d6286b0007")},
         {  9002, uint256("0xa1e20fb1d44688b763690cf74d6aefe859e4cc32981f9e3f2b2ae9702bbcf249")},
         { 10881, uint256("0x4b6554c45e1e6764a6f3c309c47baf53c9edd81f624e52b072518cd15da237e6")},
         { 17650, uint256("0x224940e1f986a202209b8e762728d1452ab45870c308abf84905674acf326a47")},
+        // Recent finality pin (PoS era). Closes the long unchecked span from
+        // 17650 to the live tip so stale-bootstrap / low-trust forks below
+        // this height are rejected outright. Hash from the canonical chain.
+        { 2205000, uint256("0x6bdd3c5e5a32e1dd9a70e705f1a28d1dd84929f89579bd2696d41bc87f39446f")},
+        { 2206004, uint256("0xb34e8e6a7bb7f52167d81aaad4d26f87a876898fdd0fce860916fc1aaf9a2a46")},
     };
 
     // Published UTXO snapshot file SHA256, keyed by snapshot height.
@@ -43,6 +48,7 @@ namespace Checkpoints
     // here. The corresponding (height, blockhash) must already exist in
     // mapCheckpoints / mapCheckpointsTestnet.
     static std::map<int, uint256> mapSnapshotHashes = {
+        { 2206004, uint256("0x1419282dae817315ee1b955543f6248233fe5800f5e8488734a0ece5bd6781ea")},
     };
 
     static std::map<int, uint256> mapSnapshotHashesTestnet = {
@@ -54,7 +60,7 @@ namespace Checkpoints
         {  2101, uint256("0xd4ea1ac45b63c8162a7fc8033cec441db8d532ba988202849d7831e32fe2d059")},
         {  2847, uint256("0xb5015e2835f13fd3bb6135cff9b31ac33310c9b77d694bdb592b8680d98d018e")},
         {  3589, uint256("0xb12a2ca3db4e288cada98aa2139768532bd4474c49dd7b8158031032dac08d51")},
-        {  3935, uint256("0xe16290c9757d1368b8d7c35de4f8f70c2c9f9c785b667df0c3bff85086ca6")},
+        {  3935, uint256("0xe16290c9757d1368b8d7c35de07d4f8f70c2c9f9c785b667df0c3bff85086ca6")},
         {  5703, uint256("0x587db07bb2172ad7db72c5fabc2518262a1b27f503f99417510b2c6fafa6557b")},
         {  9000, uint256("0x00000000019ef6b2f5e7c324c7d083ee94502305aabc7e9cd73a7fb2a57bb8db")},
         {  9001, uint256("0x6d5c6c5f201cc9e59659ee0da30d1430dc6bf3b12a8ff4c3864ab8d6286b0007")},

src/clientversion.h

@@ -6,9 +6,9 @@
 //
 
 // These need to be macros, as version.cpp's and triangles-qt.rc's voodoo requires it
-#define CLIENT_VERSION_MAJOR       6
-#define CLIENT_VERSION_MINOR       0
-#define CLIENT_VERSION_REVISION    0
+#define CLIENT_VERSION_MAJOR       5
+#define CLIENT_VERSION_MINOR       9
+#define CLIENT_VERSION_REVISION    17
 #define CLIENT_VERSION_BUILD       0
 
 // Converts the parameter X to a string after macro replacement on X has been performed.

src/hdwallet.cpp

@@ -0,0 +1,223 @@
+// Copyright (c) 2026 The Triangles developers
+// Distributed under the MIT/X11 software license.
+#include "hdwallet.h"
+#include "bip39_english.h"
+
+#include <cstring>
+#include <algorithm>
+
+#include <openssl/sha.h>
+#include <openssl/hmac.h>
+#include <openssl/evp.h>
+#include <openssl/rand.h>
+
+#include <secp256k1.h>
+
+namespace hd {
+
+// ---- secp256k1 context (self-contained; independent of crypto_ecdsa) ------
+static secp256k1_context* HDContext()
+{
+    static secp256k1_context* ctx = NULL;
+    if (!ctx)
+        ctx = secp256k1_context_create(SECP256K1_CONTEXT_SIGN | SECP256K1_CONTEXT_VERIFY);
+    return ctx;
+}
+
+static void HmacSha512(const unsigned char* key, size_t keylen,
+                       const unsigned char* data, size_t datalen,
+                       unsigned char out[64])
+{
+    unsigned int len = 64;
+    HMAC(EVP_sha512(), key, (int)keylen, data, datalen, out, &len);
+}
+
+// Binary search the (lexicographically sorted) BIP39 English wordlist.
+static int WordIndex(const std::string& w)
+{
+    int lo = 0, hi = 2047;
+    while (lo <= hi) {
+        int mid = (lo + hi) / 2;
+        int c = w.compare(BIP39_WORDLIST_EN[mid]);
+        if (c == 0) return mid;
+        if (c < 0) hi = mid - 1; else lo = mid + 1;
+    }
+    return -1;
+}
+
+static std::vector<std::string> SplitWords(const std::string& s)
+{
+    std::vector<std::string> out;
+    size_t i = 0, n = s.size();
+    while (i < n) {
+        while (i < n && (s[i] == ' ' || s[i] == '\t' || s[i] == '\n' || s[i] == '\r')) i++;
+        size_t j = i;
+        while (j < n && !(s[j] == ' ' || s[j] == '\t' || s[j] == '\n' || s[j] == '\r')) j++;
+        if (j > i) out.push_back(s.substr(i, j - i));
+        i = j;
+    }
+    return out;
+}
+
+// ---- BIP39 ----------------------------------------------------------------
+std::string GenerateMnemonic(int strengthBits)
+{
+    if (strengthBits != 128 && strengthBits != 256) strengthBits = 256;
+    int entBytes = strengthBits / 8;
+    std::vector<unsigned char> ent(entBytes);
+    if (RAND_bytes(&ent[0], entBytes) != 1) return std::string();
+
+    // checksum = first (ENT/32) bits of SHA256(entropy)
+    unsigned char hash[32];
+    SHA256(&ent[0], entBytes, hash);
+    int csBits = strengthBits / 32;
+
+    // bit buffer = entropy || checksum bits
+    std::vector<unsigned char> bits = ent;
+    bits.push_back(hash[0]); // up to 8 checksum bits live in hash[0]
+
+    int totalBits = strengthBits + csBits;
+    int words = totalBits / 11;
+    std::string out;
+    for (int i = 0; i < words; i++) {
+        int idx = 0;
+        for (int b = 0; b < 11; b++) {
+            int bitpos = i * 11 + b;
+            int byte = bitpos / 8, off = 7 - (bitpos % 8);
+            int bit = (bits[byte] >> off) & 1;
+            idx = (idx << 1) | bit;
+        }
+        if (i) out += ' ';
+        out += BIP39_WORDLIST_EN[idx];
+    }
+    return out;
+}
+
+bool CheckMnemonic(const std::string& mnemonic)
+{
+    std::vector<std::string> w = SplitWords(mnemonic);
+    size_t nw = w.size();
+    if (nw != 12 && nw != 15 && nw != 18 && nw != 21 && nw != 24) return false;
+
+    int totalBits = (int)nw * 11;
+    int csBits = totalBits / 33;
+    int entBits = totalBits - csBits;
+    if (entBits % 8 != 0) return false;
+    int entBytes = entBits / 8;
+
+    // unpack 11-bit indices into a bit buffer
+    std::vector<unsigned char> buf((totalBits + 7) / 8, 0);
+    for (size_t i = 0; i < nw; i++) {
+        int idx = WordIndex(w[i]);
+        if (idx < 0) return false;
+        for (int b = 0; b < 11; b++) {
+            int bit = (idx >> (10 - b)) & 1;
+            int bitpos = (int)i * 11 + b;
+            int byte = bitpos / 8, off = 7 - (bitpos % 8);
+            if (bit) buf[byte] |= (1 << off);
+        }
+    }
+    std::vector<unsigned char> ent(buf.begin(), buf.begin() + entBytes);
+    unsigned char hash[32];
+    SHA256(&ent[0], entBytes, hash);
+    // compare csBits checksum bits
+    for (int b = 0; b < csBits; b++) {
+        int bitpos = entBits + b;
+        int byte = bitpos / 8, off = 7 - (bitpos % 8);
+        int got = (buf[byte] >> off) & 1;
+        int want = (hash[b / 8] >> (7 - (b % 8))) & 1;
+        if (got != want) return false;
+    }
+    return true;
+}
+
+bool MnemonicToSeed(const std::string& mnemonic, const std::string& passphrase,
+                    unsigned char seed64[64])
+{
+    std::string salt = "mnemonic" + passphrase;
+    int rc = PKCS5_PBKDF2_HMAC(mnemonic.c_str(), (int)mnemonic.size(),
+                               (const unsigned char*)salt.c_str(), (int)salt.size(),
+                               2048, EVP_sha512(), 64, seed64);
+    return rc == 1;
+}
+
+// ---- BIP32 ----------------------------------------------------------------
+bool MasterFromSeed(const unsigned char* seed, size_t seedlen, ExtKey& out)
+{
+    unsigned char I[64];
+    HmacSha512((const unsigned char*)"Bitcoin seed", 12, seed, seedlen, I);
+    memcpy(out.key, I, 32);
+    memcpy(out.chaincode, I + 32, 32);
+    if (!secp256k1_ec_seckey_verify(HDContext(), out.key)) return false;
+    out.valid = true;
+    return true;
+}
+
+bool CKDpriv(const ExtKey& parent, uint32_t index, ExtKey& child)
+{
+    if (!parent.valid) return false;
+    secp256k1_context* ctx = HDContext();
+    unsigned char data[37];
+    size_t dlen = 0;
+    if (index & HARDENED) {
+        data[0] = 0x00;
+        memcpy(data + 1, parent.key, 32);
+        dlen = 33;
+    } else {
+        // serP(point(parent.key)) = 33-byte compressed pubkey
+        secp256k1_pubkey pk;
+        if (!secp256k1_ec_pubkey_create(ctx, &pk, parent.key)) return false;
+        size_t plen = 33;
+        secp256k1_ec_pubkey_serialize(ctx, data, &plen, &pk, SECP256K1_EC_COMPRESSED);
+        dlen = 33;
+    }
+    data[dlen + 0] = (index >> 24) & 0xff;
+    data[dlen + 1] = (index >> 16) & 0xff;
+    data[dlen + 2] = (index >> 8) & 0xff;
+    data[dlen + 3] = index & 0xff;
+    dlen += 4;
+
+    unsigned char I[64];
+    HmacSha512(parent.chaincode, 32, data, dlen, I);
+
+    memcpy(child.key, parent.key, 32);
+    // child = (IL + parent) mod n ; rejects invalid (IL>=n or result 0)
+    if (!secp256k1_ec_seckey_tweak_add(ctx, child.key, I)) return false;
+    memcpy(child.chaincode, I + 32, 32);
+    child.valid = true;
+    return true;
+}
+
+bool DerivePath(const ExtKey& master, const std::vector<uint32_t>& path, ExtKey& out)
+{
+    ExtKey cur = master;
+    for (size_t i = 0; i < path.size(); i++) {
+        ExtKey nxt;
+        if (!CKDpriv(cur, path[i], nxt)) return false;
+        cur = nxt;
+    }
+    out = cur;
+    return true;
+}
+
+bool DeriveTriangles(const std::string& mnemonic, const std::string& passphrase,
+                     uint32_t account, uint32_t change, uint32_t index,
+                     unsigned char privOut[32])
+{
+    unsigned char seed[64];
+    if (!MnemonicToSeed(mnemonic, passphrase, seed)) return false;
+    ExtKey master;
+    if (!MasterFromSeed(seed, 64, master)) return false;
+    std::vector<uint32_t> path;
+    path.push_back(44u | HARDENED);
+    path.push_back(TRI_COIN_TYPE | HARDENED);
+    path.push_back(account | HARDENED);
+    path.push_back(change);
+    path.push_back(index);
+    ExtKey leaf;
+    if (!DerivePath(master, path, leaf)) return false;
+    memcpy(privOut, leaf.key, 32);
+    return true;
+}
+
+} // namespace hd

src/hdwallet.h

@@ -0,0 +1,50 @@
+// Copyright (c) 2026 The Triangles developers
+// Distributed under the MIT/X11 software license.
+//
+// Native BIP39 (mnemonic) + BIP32 (HD) key derivation for Triangles.
+// Produces keys identical to the TRIdock web wallet (derivation path
+// m/44'/2222'/0'/0/i, coin type 2222), so a 24-word phrase round-trips
+// between the Qt/daemon wallet and the web wallet.
+#ifndef TRIANGLES_HDWALLET_H
+#define TRIANGLES_HDWALLET_H
+
+#include <string>
+#include <vector>
+#include <cstdint>
+#include <cstddef>
+
+namespace hd {
+
+static const uint32_t HARDENED      = 0x80000000u;
+static const uint32_t TRI_COIN_TYPE = 2222u;   // matches triWallet.js
+
+// A BIP32 extended private key (private scalar + chain code).
+struct ExtKey {
+    unsigned char key[32];
+    unsigned char chaincode[32];
+    bool valid;
+    ExtKey() : valid(false) { }
+};
+
+// ---- BIP39 ----------------------------------------------------------------
+// Generate a new mnemonic. strengthBits must be 128 (12 words) or 256 (24).
+std::string GenerateMnemonic(int strengthBits = 256);
+// Validate word membership + checksum.
+bool CheckMnemonic(const std::string& mnemonic);
+// PBKDF2-HMAC-SHA512(mnemonic, "mnemonic"+passphrase, 2048) -> 64-byte seed.
+bool MnemonicToSeed(const std::string& mnemonic, const std::string& passphrase,
+                    unsigned char seed64[64]);
+
+// ---- BIP32 ----------------------------------------------------------------
+bool MasterFromSeed(const unsigned char* seed, size_t seedlen, ExtKey& out);
+bool CKDpriv(const ExtKey& parent, uint32_t index, ExtKey& child);
+bool DerivePath(const ExtKey& master, const std::vector<uint32_t>& path, ExtKey& out);
+
+// ---- High level -----------------------------------------------------------
+// Derive the 32-byte private scalar for m/44'/coinType'/account'/change/index.
+bool DeriveTriangles(const std::string& mnemonic, const std::string& passphrase,
+                     uint32_t account, uint32_t change, uint32_t index,
+                     unsigned char privOut[32]);
+
+} // namespace hd
+#endif // TRIANGLES_HDWALLET_H

src/init.cpp

@@ -417,7 +417,7 @@ std::string HelpMessage()
         //"  -proxy=<ip:port>       " + _("Connect through socks proxy") + "\n" +
         //"  -socks=<n>             " + _("Select the version of socks proxy to use (4-5, default: 5)") + "\n" +
         "  -tor=<ip:port>         " + _("Use proxy to reach tor hidden services (default: same as -proxy)") + "\n"
-        "  -notor                 " + _("Disable Tor (WARNING: wallet will not start - Tor is required)") + "\n" +
+        "  -notor                 " + _("Disable Tor - run in clearnet-only mode (no .onion connectivity)") + "\n" +
         "  -torsocks=<port>       " + _("Set embedded or managed Tor SOCKS proxy port (default: 19099)") + "\n" +
         "  -torhiddenservice      " + _("Enable the managed Tor hidden service (default: 1)") + "\n" +
         "  -torhsport=<port>      " + _("Set embedded or managed Tor hidden service port (default: wallet listen port)") + "\n" +
@@ -927,7 +927,8 @@ bool AppInit2()
     // v5.9.5: P2P UTXO snapshot fetch is the default for fresh installs (Step 11.6).
     // The legacy clearnet HTTP bootstrap only runs when the user explicitly requests
     // it via -bootstrap, or when -snapshot=0 disables the P2P fetcher.
-#ifndef QT_GUI
+// Bootstrap auto-download works for both GUI and daemon.
+    // GUI users get the same automatic bootstrap on fresh installs.
     {
         bool wantsBootstrap = GetBoolArg("-bootstrap", false);
         bool noBootstrap = GetBoolArg("-nobootstrap", false);
@@ -938,6 +939,7 @@ bool AppInit2()
         if (needsBootstrap && !noBootstrap && !snapshotMode) {
             printf("Bootstrap: no blockchain data found — downloading automatically.\n");
             printf("Bootstrap: (use -nobootstrap to skip)\n");
+            uiInterface.InitMessage(_("Downloading blockchain data..."));
             wantsBootstrap = true;
         } else if (needsBootstrap && snapshotMode && !wantsBootstrap) {
             printf("Bootstrap: no blockchain data found — will fetch UTXO snapshot via P2P after network start.\n");
@@ -951,13 +953,24 @@ bool AppInit2()
         std::string host = Bootstrap::DEFAULT_HOST;
         std::string strError;
 
-        auto progressFn = [](int64_t bytesDownloaded, int64_t totalBytes) {
+        int64_t lastGuiUpdate = 0;
+        auto progressFn = [&lastGuiUpdate](int64_t bytesDownloaded, int64_t totalBytes) {
             if (totalBytes > 0) {
                 printf("\rBootstrap: %lld / %lld MB (%lld%%)",
                        (long long)(bytesDownloaded / (1024*1024)),
                        (long long)(totalBytes / (1024*1024)),
                        (long long)((bytesDownloaded * 100) / totalBytes));
                 fflush(stdout);
+                // Update GUI status bar every ~1 MB
+                int64_t now = GetTimeMillis();
+                if (now - lastGuiUpdate > 1000) {
+                    lastGuiUpdate = now;
+                    std::string msg = strprintf("Downloading blockchain: %lld / %lld MB (%lld%%)",
+                        (long long)(bytesDownloaded / (1024*1024)),
+                        (long long)(totalBytes / (1024*1024)),
+                        (long long)((bytesDownloaded * 100) / totalBytes));
+                    uiInterface.InitMessage(msg);
+                }
             }
         };
 
@@ -999,7 +1012,6 @@ bool AppInit2()
             strprintf("host=%s success=%d utxo_snapshot=%d", host.c_str(), success, triedUtxoSnapshot));
     }
     } // end bootstrap scope
-#endif
 
     // ********************************************************* Step 6c: manual UTXO snapshot loading
     // If utxo-snapshot.bin exists in data dir and the chain DB hasn't been
@@ -1013,8 +1025,13 @@ bool AppInit2()
             printf("Found utxo-snapshot.bin — loading UTXO snapshot...\n");
             uiInterface.InitMessage(_("Loading UTXO snapshot..."));
 
+            // Local file load: skip the checkpoint gate. The operator has
+            // filesystem access, so the trust model is already equivalent
+            // to direct chain state modification — a malicious local file
+            // is no worse than a malicious chain DB. P2P-delivered
+            // snapshots (SnapshotNet) keep the checkpoint gate on.
             std::string strError;
-            if (UtxoSnapshot::LoadSnapshot(snapshotFile, dataPath, strError)) {
+            if (UtxoSnapshot::LoadSnapshot(snapshotFile, dataPath, strError, /*requireCheckpoint=*/false)) {
                 printf("UTXO snapshot loaded successfully.\n");
             } else {
                 printf("UTXO snapshot load failed: %s\n", strError.c_str());
@@ -1069,6 +1086,37 @@ bool AppInit2()
     if (!LoadBlockIndex())
         return InitError(_("Error loading blkindex.dat"));
 
+    // triangles fix (pitfall #61): initialize pindexFinalized from the
+    // hardcoded checkpoint on startup, BEFORE the daemon opens any peer
+    // connections or processes any block messages.
+    //
+    // Without this, pindexFinalized stays NULL on a fresh restart even when
+    // we have 2.2M blocks on disk, because the auto-checkpoint code in
+    // ActivateBestChain() at main.cpp:2459 only sets it when
+    // !IsInitialBlockDownload(). If the chain tip is more than 24h stale
+    // (which happens on every restart with a synced chain), IsInitialBlockDownload()
+    // returns true and pindexFinalized never gets set.
+    //
+    // The downstream reorg guard at main.cpp:2198 short-circuits when
+    // pindexFinalized is NULL, which allowed a 3,755-block minority fork
+    // to overwrite a healthy 2,206,004-block chain on 2026-06-16. Loading
+    // the hardcoded checkpoint from checkpoints.cpp (block 2,205,000) on
+    // startup means the reorg guard is always active whenever the
+    // checkpointed block is in our local mapBlockIndex.
+    {
+        CBlockIndex* pCheckpoint = Checkpoints::GetLastCheckpoint(mapBlockIndex);
+        if (pCheckpoint && pCheckpoint != pindexFinalized)
+        {
+            pindexFinalized = pCheckpoint;
+            printf("STARTUP-CHECKPOINT: pindexFinalized set to block %d (%s) from hardcoded checkpoint\n",
+                pindexFinalized->nHeight, pindexFinalized->GetBlockHash().ToString().substr(0,20).c_str());
+        }
+        else if (!pCheckpoint)
+        {
+            printf("STARTUP-CHECKPOINT: WARNING — hardcoded checkpoint not in local block index, pindexFinalized remains NULL\n");
+        }
+    }
+
     // If the block index is empty but blk0001.dat exists (bootstrap download),
     // fast-import: build the index directly from the block file without re-writing
     // data. Batches LevelDB commits every 200K blocks for speed.
@@ -1343,6 +1391,15 @@ bool AppInit2()
             #ifdef USE_UPNP
             fUseUPnP = false;
             #endif
+        } else if (GetBoolArg("-notor", false)) {
+            // -notor: user explicitly disabled Tor.  Allow the daemon to start
+            // in clearnet-only mode (useful for diagnostics, benchmarking, and
+            // recovery).  .onion connectivity will not be available.
+            printf("NOTICE: Tor disabled via -notor. Running in clearnet-only mode.\n");
+            printf("  .onion connections will NOT be available.\n");
+            SetReachable(NET_IPV4, true);
+            SetReachable(NET_IPV6, true);
+            SetReachable(NET_TOR, false);
         } else {
             std::string torError = CTorEmbedded::GetInstance()->GetStartupError();
             if (torError.empty())

src/kernel.cpp

@@ -36,8 +36,18 @@ int64_t GetWeight(int64_t nIntervalBeginning, int64_t nIntervalEnd)
     // comes back with massively amplified staking power and dominates blocks.
     // The 7-day cap still allows generous accumulation while limiting abuse.
     static const int64_t STAKE_AGE_SOFT_CAP = 7 * 24 * 60 * 60; // 7 days
+    // Activation gate: the soft cap shipped 2026-04-20 without a height/time
+    // gate, retroactively invalidating earlier blocks staked with long-aged
+    // coins (e.g. coins idle through the 2022-2026 freeze).  Apply the cap
+    // only to stakes after the activation timestamp; historical stakes
+    // validate under the rules they were created with (uncapped age).
+    static const int64_t STAKE_AGE_SOFT_CAP_ACTIVATION = 1776000000; // 2026-04-12 ~13:20 UTC
     if (pindexBest && pindexBest->nHeight >= FORK_HEIGHT_V5)
-        return min(nAge, STAKE_AGE_SOFT_CAP);
+    {
+        if (nIntervalEnd >= STAKE_AGE_SOFT_CAP_ACTIVATION)
+            return min(nAge, STAKE_AGE_SOFT_CAP);
+        return nAge;
+    }
 
     return min(nAge, (int64_t)nStakeMaxAge);
 }

src/main.cpp

@@ -1324,10 +1324,12 @@ bool IsInitialBlockDownload()
         pindexLastBest = pindexBest;
         nLastUpdate = GetTime();
     }
-    // IBD is complete once we've passed the checkpoint height estimate.
-    // The previous >24h block-time check incorrectly kept IBD true when the
-    // chain was synced but simply stalled (no new blocks arriving), which
-    // prevented the stake miner from ever proceeding.
+    // IBD is complete once we've passed the checkpoint AND the chain tip is
+    // recent (within 24h). This prevents a stall AFTER checkpoint from
+    // permanently disabling header fetching. The forcestaking path above
+    // handles the specific staking-broker scenario.
+    if (GetTime() - nLastUpdate > 24 * 60 * 60)
+        return true;
     return false;
 }
 
@@ -2820,7 +2822,12 @@ bool CBlock::CheckBlock(bool fCheckPOW, bool fCheckMerkleRoot, bool fCheckSig) c
             return DoS(100, error("CheckBlock() : more than one coinbase"));
 
     // Check coinbase timestamp
-    if (GetBlockTime() > FutureDrift((int64_t)vtx[0].nTime))
+    // NOTE: Must use the pre-fork (10-minute) drift tolerance here because
+    // CheckBlock() is context-free (no nHeight) and can be called on blocks
+    // at any height, including during chain reorgs from old fork chains.
+    // The tight 90-second drift for post-fork blocks is enforced separately
+    // in AcceptBlock/ConnectBlock with proper height context.
+    if (GetBlockTime() > (int64_t)vtx[0].nTime + 10 * 60)
         return DoS(50, error("CheckBlock() : coinbase timestamp is too early"));
 
     if (IsProofOfStake())
@@ -3064,7 +3071,7 @@ bool ProcessBlock(CNode* pfrom, CBlock* pblock)
     // triangles: check proof-of-stake
     // Limited duplicity on stake: prevents block flood attack
     // Duplicate stake allowed only when there is orphan child block
-    if (pblock->IsProofOfStake() && setStakeSeen.count(pblock->GetProofOfStake()) && !mapOrphanBlocksByPrev.count(hash))
+    if (pblock->IsProofOfStake() && !GetBoolArg("-ignoredupstake", false) && setStakeSeen.count(pblock->GetProofOfStake()) && !mapOrphanBlocksByPrev.count(hash))
         return error("ProcessBlock() : duplicate proof-of-stake (%s, %d) for block %s", pblock->GetProofOfStake().first.ToString().c_str(), pblock->GetProofOfStake().second, hash.ToString().c_str());
 
     // Preliminary checks
@@ -3122,13 +3129,15 @@ bool ProcessBlock(CNode* pfrom, CBlock* pblock)
         {
             // Limited duplicity on stake: prevents block flood attack
             // Duplicate stake allowed only when there is orphan child block
-            if (setStakeSeenOrphan.count(pblock2->GetProofOfStake()) && !mapOrphanBlocksByPrev.count(hash))
+            if (!GetBoolArg("-ignoredupstake", false) && setStakeSeenOrphan.count(pblock2->GetProofOfStake()) && !mapOrphanBlocksByPrev.count(hash))
                 return error("ProcessBlock() : duplicate proof-of-stake (%s, %d) for orphan block %s", pblock2->GetProofOfStake().first.ToString().c_str(), pblock2->GetProofOfStake().second, hash.ToString().c_str());
             else
                 setStakeSeenOrphan.insert(pblock2->GetProofOfStake());
         }
+        uint256 hashPrevOrphan = pblock2->hashPrevBlock;
+        CBlock* pblock2raw = pblock2.get();
         mapOrphanBlocks.insert(make_pair(hash, std::move(pblock2)));
-        mapOrphanBlocksByPrev.insert(make_pair(pblock2->hashPrevBlock, pblock2.get()));
+        mapOrphanBlocksByPrev.insert(make_pair(hashPrevOrphan, pblock2raw));
         dequeOrphanOrder.push_back(hash);  // track insertion order for FIFO eviction
 
         // Limit orphan blocks to prevent memory exhaustion.
@@ -3140,11 +3149,11 @@ bool ProcessBlock(CNode* pfrom, CBlock* pblock)
         // Ask this guy to fill in what we're missing
         if (pfrom && pindexBest)
         {
-            pfrom->PushGetBlocks(pindexBest, GetOrphanRoot(pblock2.get()));
+            pfrom->PushGetBlocks(pindexBest, GetOrphanRoot(pblock2raw));
             // triangles: getblocks may not obtain the ancestor block rejected
             // earlier by duplicate-stake check so we ask for it again directly
             if (!IsInitialBlockDownload())
-                pfrom->AskFor(CInv(MSG_BLOCK, WantedByOrphan(pblock2.get())));
+                pfrom->AskFor(CInv(MSG_BLOCK, WantedByOrphan(pblock2raw)));
         }
         return true;
     }
@@ -3762,8 +3771,9 @@ bool FastImportBlockFile()
             int64_t nFees = 0;
             unsigned int nTxPos = nBlockPos + ::GetSerializeSize(CBlock(), SER_DISK, CLIENT_VERSION)
                                 - (2 * GetSizeOfCompactSize(0)) + GetSizeOfCompactSize(block.vtx.size());
-            for (const CTransaction& tx : block.vtx)
+            for (size_t nTxIdx = 0; nTxIdx < block.vtx.size(); nTxIdx++)
             {
+                const CTransaction& tx = block.vtx[nTxIdx];
                 uint256 hashTx = tx.GetHash();
                 CDiskTxPos posThisTx(1, nBlockPos, nTxPos);
                 txdb.UpdateTxIndex(hashTx, CTxIndex(posThisTx, tx.vout.size()));
@@ -3781,6 +3791,18 @@ bool FastImportBlockFile()
                         CUtxoEntry utxo;
                         if (txdb.ReadUtxo(txin.prevout.hash, txin.prevout.n, utxo))
                             nTxValueIn += utxo.nValue;
+                        if (fAddressIndex && !utxo.scriptPubKey.empty() && utxo.nValue != 0)
+                        {
+                            int nAType; uint160 aHash;
+                            if (GetAddressFromScript(utxo.scriptPubKey, nAType, aHash))
+                            {
+                                txdb.EraseAddressUtxo(nAType, aHash, txin.prevout.hash, txin.prevout.n);
+                                int64_t nABal = 0;
+                                txdb.ReadAddressBalance(nAType, aHash, nABal);
+                                nABal -= utxo.nValue;
+                                txdb.WriteAddressBalance(nAType, aHash, nABal);
+                            }
+                        }
                         txdb.EraseUtxo(txin.prevout.hash, txin.prevout.n);
                     }
                     nBlockValueIn += nTxValueIn;
@@ -3799,6 +3821,20 @@ bool FastImportBlockFile()
                         utxo.fCoinStake = tx.IsCoinStake();
                         utxo.nTxTime = tx.nTime;
                         txdb.WriteUtxo(hashTx, k, utxo);
+                        if (fAddressIndex && !tx.vout[k].scriptPubKey.empty() && tx.vout[k].nValue != 0)
+                        {
+                            int nAType; uint160 aHash;
+                            if (GetAddressFromScript(tx.vout[k].scriptPubKey, nAType, aHash))
+                            {
+                                txdb.WriteAddressUtxo(nAType, aHash, hashTx, k,
+                                                      tx.vout[k].nValue, pindexNew->nHeight, tx.vout[k].scriptPubKey);
+                                int64_t nABal = 0;
+                                txdb.ReadAddressBalance(nAType, aHash, nABal);
+                                nABal += tx.vout[k].nValue;
+                                txdb.WriteAddressBalance(nAType, aHash, nABal);
+                                txdb.WriteAddressTxId(nAType, aHash, pindexNew->nHeight, (int)nTxIdx, hashTx);
+                            }
+                        }
                     }
                 }
             }
@@ -3850,6 +3886,8 @@ bool FastImportBlockFile()
         // Final commit
         if (pindexBest)
         {
+            if (fAddressIndex)
+                UpdateAddressIndexSyncState(txdb, pindexBest);
             txdb.WriteHashBestChain(hashBestChain);
 
             // Write sync checkpoint
@@ -4043,14 +4081,23 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
         // parallelism. Multiple peers sending overlapping inv ranges is harmless
         // (AlreadyHave filters duplicates) but ensures we discover and download
         // blocks from the fastest available source.
+        // NOTE: nStartingHeight from version messages is unverified. Peers can
+        // claim any height. During IBD we always ask all eligible peers rather
+        // than filtering on a claim that may be wrong (a stunted node could be
+        // reporting the full chain height while only serving the tail of its
+        // own fork). Use nBestKnownHeight (updated from actual block responses)
+        // for peer capability assessment instead.
         static int nAskedForBlocks = 0;
         bool fIBD = IsInitialBlockDownload();
-        bool fBehindPeer = (pfrom->nStartingHeight > nBestHeight);
+        // During IBD: ask every non-client peer unconditionally to maximise
+        // download sources. Post-IBD: use traditional height-check logic.
         bool fShouldAsk = !pfrom->fClient && !pfrom->fOneShot &&
-            (pfrom->nStartingHeight > (nBestHeight - 144)) &&
+            (fIBD ||
+             pfrom->nStartingHeight > (nBestHeight - 144) ||
+             pfrom->nStartingHeight > nBestHeight) &&
             (pfrom->nVersion < NOBLKS_VERSION_START ||
              pfrom->nVersion >= NOBLKS_VERSION_END) &&
-             (fIBD || nAskedForBlocks < 1 || vNodes.size() <= 1 || fBehindPeer);
+             (fIBD || nAskedForBlocks < 1 || vNodes.size() <= 1 || pfrom->nStartingHeight > nBestHeight);
         printf("IBD-DIAG: version handler: peer=%s height=%d ourHeight=%d fClient=%d fOneShot=%d shouldAsk=%d nAskedForBlocks=%d IBD=%d\n",
             pfrom->addr.ToString().c_str(), pfrom->nStartingHeight, nBestHeight,
             pfrom->fClient, pfrom->fOneShot, fShouldAsk, nAskedForBlocks, fIBD);
@@ -4361,19 +4408,25 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
         // GetBlockIndex() fell through to genesis (no locator hash matched
         // our main chain). If the peer's tip isn't our genesis,
         // they're on a completely different fork.
+        //
+        // triangles fix: instead of banning or disconnecting, always respond
+        // with our main chain blocks so a fork node can learn the canonical
+        // chain and reorganize. The fork node's client will automatically
+        // reorg when it receives blocks that form a longer or higher-work chain.
         if (!locator.IsNull() && pindex == pindexGenesisBlock &&
             pindexGenesisBlock && locator.GetTipHash() != pindexGenesisBlock->GetBlockHash())
         {
             pfrom->nIncompatibleGetblocks++;
-            if (pfrom->nIncompatibleGetblocks >= 3)
-            {
-                printf("WARNING: peer %s sent %d getblocks with no common blocks — disconnecting (incompatible fork)\n",
-                    pfrom->addr.ToString().c_str(), pfrom->nIncompatibleGetblocks);
-                pfrom->Misbehaving(100);
-                return true;
-            }
-            printf("WARNING: peer %s getblocks locator has no common blocks (%d/3 before ban)\n",
+            // triangles: after many failed attempts, reset — the peer may now be
+            // on the correct chain and we don't want to ban a node that's just
+            // learning about the main chain from us.
+            if (pfrom->nIncompatibleGetblocks > 10)
+                pfrom->nIncompatibleGetblocks = 0;
+            // triangles: NO return/ban here — fall through and serve main chain
+            // blocks so the forking peer can reorg to our chain.
+            printf("WARNING: peer %s getblocks locator has no common blocks — serving main chain from genesis (counter=%d, will reset after 10)\\n",
                 pfrom->addr.ToString().c_str(), pfrom->nIncompatibleGetblocks);
+            pindex = pindexGenesisBlock;
         }
         else if (pindex && pindex != pindexGenesisBlock)
         {
@@ -4433,8 +4486,60 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
         {
             // Find the last block the caller has in the main chain
             pindex = locator.GetBlockIndex();
+
+            // triangles fix: handle broken pnext chain.
+            // GetBlockIndex() returns pindexGenesisBlock when no locator
+            // hash matches our main chain (peer is on a different fork or
+            // a stale local state). pindexGenesisBlock->pnext is always
+            // null, which would cause the for-loop below to send ZERO
+            // headers, leaving the peer stuck (logged as "getheaders -1").
+            //
+            // Mirror the getblocks handler: if the locator matches nothing
+            // on our main chain, serve our headers from genesis so the peer
+            // can discover the canonical chain. Then fall back to a tip-
+            // backwards walk if pnext is null for any other reason (this
+            // happens when LoadBlockIndex() didn't fully heal pnext links,
+            // or the chain was bootstrapped from a snapshot).
+            //
+            // pitfall #61 guard: if pindexFinalized is set (from the startup
+            // hardcoded-checkpoint init in init.cpp), serve from there instead
+            // of genesis. This prevents a fork peer from feeding us their
+            // short chain back via getheaders — the peer only learns our
+            // canonical chain from the finalized point forward, and their
+            // conflicting fork gets rejected at the reorg check in
+            // Reorganize() because the fork point is below pindexFinalized.
+            if (!locator.IsNull() && pindex == pindexGenesisBlock &&
+                pindexGenesisBlock && locator.GetTipHash() != pindexGenesisBlock->GetBlockHash())
+            {
+                if (pindexFinalized && pindexFinalized->pnext)
+                {
+                    printf("getheaders: fork detected from peer %s, serving headers from finalized block %d (not genesis) — pitfall #61 guard\n",
+                        pfrom->addr.ToString().c_str(), pindexFinalized->nHeight);
+                    pindex = pindexFinalized;
+                }
+                else
+                {
+                    printf("WARNING: peer getheaders locator has no common blocks — serving headers from genesis (peer may be on a fork)\n");
+                    pindex = pindexGenesisBlock;
+                }
+            }
+
             if (pindex)
-                pindex = pindex->pnext;
+            {
+                if (pindex->pnext)
+                {
+                    pindex = pindex->pnext;
+                }
+                else
+                {
+                    // pnext is null — fall back to walking from pindexBest
+                    // backwards to find the block immediately after pindex
+                    CBlockIndex* pWalk = pindexBest;
+                    while (pWalk && pWalk->pprev != pindex)
+                        pWalk = pWalk->pprev;
+                    pindex = pWalk;  // null if pindex is already the tip
+                }
+            }
         }
 
         vector<CBlock> vHeaders;

src/qt/hdseeddialog.cpp

@@ -0,0 +1,142 @@
+// Copyright (c) 2026 The Triangles developers
+// Distributed under the MIT/X11 software license.
+#include "hdseeddialog.h"
+#include "walletmodel.h"
+
+#include <QVBoxLayout>
+#include <QHBoxLayout>
+#include <QPushButton>
+#include <QPlainTextEdit>
+#include <QLabel>
+#include <QMessageBox>
+#include <QFont>
+
+HDSeedDialog::HDSeedDialog(QWidget *parent)
+    : QDialog(parent), model(0), seedText(0), statusLabel(0)
+{
+    setWindowTitle(tr("HD Seed Phrase (BIP39)"));
+    resize(560, 360);
+
+    QVBoxLayout *layout = new QVBoxLayout(this);
+
+    QLabel *intro = new QLabel(tr(
+        "A 24-word seed phrase is a complete backup of this wallet. Anyone who has it "
+        "can spend your coins. Write it down on paper and keep it offline."), this);
+    intro->setWordWrap(true);
+    layout->addWidget(intro);
+
+    seedText = new QPlainTextEdit(this);
+    seedText->setPlaceholderText(tr(
+        "Your 24-word phrase appears here when you generate or reveal it. "
+        "To restore, paste an existing 24-word phrase here and click 'Restore from Phrase'."));
+    QFont mono("monospace");
+    mono.setStyleHint(QFont::Monospace);
+    seedText->setFont(mono);
+    layout->addWidget(seedText);
+
+    statusLabel = new QLabel(this);
+    statusLabel->setWordWrap(true);
+    layout->addWidget(statusLabel);
+
+    QHBoxLayout *btns = new QHBoxLayout();
+    QPushButton *genBtn = new QPushButton(tr("Generate New"), this);
+    QPushButton *showBtn = new QPushButton(tr("Reveal for Backup"), this);
+    QPushButton *restoreBtn = new QPushButton(tr("Restore from Phrase"), this);
+    QPushButton *closeBtn = new QPushButton(tr("Close"), this);
+    btns->addWidget(genBtn);
+    btns->addWidget(showBtn);
+    btns->addWidget(restoreBtn);
+    btns->addStretch();
+    btns->addWidget(closeBtn);
+    layout->addLayout(btns);
+
+    connect(genBtn, SIGNAL(clicked()), this, SLOT(onGenerate()));
+    connect(showBtn, SIGNAL(clicked()), this, SLOT(onShow()));
+    connect(restoreBtn, SIGNAL(clicked()), this, SLOT(onRestore()));
+    connect(closeBtn, SIGNAL(clicked()), this, SLOT(accept()));
+}
+
+void HDSeedDialog::setModel(WalletModel *modelIn)
+{
+    model = modelIn;
+    refreshStatus();
+}
+
+void HDSeedDialog::refreshStatus()
+{
+    if (!model || !statusLabel) return;
+    if (model->hdEnabled())
+        statusLabel->setText(tr("Status: HD seed is ACTIVE. Use 'Reveal for Backup' to view your phrase."));
+    else
+        statusLabel->setText(tr("Status: no HD seed yet. Use 'Generate New' to create one."));
+}
+
+void HDSeedDialog::onGenerate()
+{
+    if (!model) return;
+    if (model->hdEnabled()) {
+        QMessageBox::warning(this, tr("HD seed already set"),
+            tr("This wallet already has an HD seed. Use 'Reveal for Backup' to view it."));
+        return;
+    }
+    if (QMessageBox::question(this, tr("Generate new seed"),
+            tr("Generate a new 24-word HD seed for this wallet?"),
+            QMessageBox::Yes | QMessageBox::No) != QMessageBox::Yes)
+        return;
+
+    WalletModel::UnlockContext ctx(model->requestUnlock());
+    if (!ctx.isValid()) return;
+
+    QString mnemonic, err;
+    if (!model->hdNew(mnemonic, err)) {
+        QMessageBox::critical(this, tr("Error"), err);
+        return;
+    }
+    seedText->setPlainText(mnemonic);
+    QMessageBox::information(this, tr("Write this down"),
+        tr("Your new 24-word seed phrase is shown above. Write it on paper and store it safely "
+           "and offline. This is the only backup of this wallet."));
+    refreshStatus();
+}
+
+void HDSeedDialog::onShow()
+{
+    if (!model) return;
+    WalletModel::UnlockContext ctx(model->requestUnlock());
+    if (!ctx.isValid()) return;
+
+    QString mnemonic, err;
+    if (!model->hdShow(mnemonic, err)) {
+        QMessageBox::critical(this, tr("Error"), err);
+        return;
+    }
+    seedText->setPlainText(mnemonic);
+}
+
+void HDSeedDialog::onRestore()
+{
+    if (!model) return;
+    QString phrase = seedText->toPlainText().trimmed();
+    if (phrase.isEmpty()) {
+        QMessageBox::warning(this, tr("No phrase"),
+            tr("Paste a 24-word phrase into the box first."));
+        return;
+    }
+    if (QMessageBox::question(this, tr("Restore from phrase"),
+            tr("Restore the HD seed from the phrase in the box and rescan the chain? "
+               "This replaces the current HD seed."),
+            QMessageBox::Yes | QMessageBox::No) != QMessageBox::Yes)
+        return;
+
+    WalletModel::UnlockContext ctx(model->requestUnlock());
+    if (!ctx.isValid()) return;
+
+    QString err;
+    if (!model->hdRestore(phrase, err)) {
+        QMessageBox::critical(this, tr("Error"), err);
+        return;
+    }
+    QMessageBox::information(this, tr("Restored"),
+        tr("HD seed restored and the chain was rescanned for your funds."));
+    refreshStatus();
+}

src/qt/hdseeddialog.h

@@ -0,0 +1,34 @@
+// Copyright (c) 2026 The Triangles developers
+// Distributed under the MIT/X11 software license.
+#ifndef HDSEEDDIALOG_H
+#define HDSEEDDIALOG_H
+
+#include <QDialog>
+
+class WalletModel;
+QT_BEGIN_NAMESPACE
+class QPlainTextEdit;
+class QLabel;
+QT_END_NAMESPACE
+
+/** Generate, reveal (for backup), and restore the wallet's BIP39 HD seed phrase. */
+class HDSeedDialog : public QDialog
+{
+    Q_OBJECT
+public:
+    explicit HDSeedDialog(QWidget *parent = 0);
+    void setModel(WalletModel *model);
+
+private:
+    WalletModel *model;
+    QPlainTextEdit *seedText;
+    QLabel *statusLabel;
+    void refreshStatus();
+
+private slots:
+    void onGenerate();
+    void onShow();
+    void onRestore();
+};
+
+#endif // HDSEEDDIALOG_H

src/qt/trianglesgui.cpp

@@ -31,6 +31,7 @@
 #include "trianglesunits.h"
 #include "guiconstants.h"
 #include "askpassphrasedialog.h"
+#include "hdseeddialog.h"
 #include "notificator.h"
 #include "guiutil.h"
 #include "rpcconsole.h"
@@ -484,6 +485,8 @@ void TrianglesGUI::createActions(bool fIsTestnet)
     backupWalletAction->setStatusTip(tr("Backup wallet to another location"));
     changePassphraseAction = new QAction(QIcon(":/menu_16/passphrase"), tr("&Change Passphrase..."), this);
     changePassphraseAction->setStatusTip(tr("Change the passphrase used for wallet encryption"));
+    hdSeedAction = new QAction(QIcon(":/menu_16/passphrase"), tr("&Seed Phrase (HD Backup)..."), this);
+    hdSeedAction->setStatusTip(tr("Generate, restore, or back up your 24-word HD seed phrase"));
     unlockWalletAction = new QAction(QIcon(":/menu_16/unlock"), tr("&Unlock Wallet..."), this);
     unlockWalletAction->setStatusTip(tr("Unlock wallet"));
     unlockWalletStakingAction = new QAction(QIcon(":/menu_16/unlock"), tr("&Unlock Wallet for staking..."), this);
@@ -509,6 +512,7 @@ void TrianglesGUI::createActions(bool fIsTestnet)
     connect(encryptWalletAction, SIGNAL(triggered(bool)), this, SLOT(encryptWallet(bool)));
     connect(backupWalletAction, SIGNAL(triggered()), this, SLOT(backupWallet()));
     connect(changePassphraseAction, SIGNAL(triggered()), this, SLOT(changePassphrase()));
+    connect(hdSeedAction, SIGNAL(triggered()), this, SLOT(hdSeedManager()));
     connect(unlockWalletAction, SIGNAL(triggered()), this, SLOT(unlockWallet()));
     connect(unlockWalletStakingAction, SIGNAL(triggered()), this, SLOT(unlockWalletStaking()));
     connect(lockWalletAction, SIGNAL(triggered()), this, SLOT(lockWallet()));
@@ -538,6 +542,7 @@ void TrianglesGUI::createMenuBar()
     QMenu *settings = appMenuBar->addMenu(tr("&Settings"));
     settings->addAction(encryptWalletAction);
     settings->addAction(changePassphraseAction);
+    settings->addAction(hdSeedAction);
     settings->addAction(unlockWalletAction);
     settings->addAction(lockWalletAction);
     settings->addSeparator();
@@ -1448,6 +1453,7 @@ void TrianglesGUI::menuOperationsRequested()
     QAction* unlockWalletStaking = menu.addAction(QIcon(":/menu_16/unlock"), tr("&Unlock Wallet...").remove('&').remove("..."));
     QAction* lockWallet = menu.addAction(QIcon(":/menu_16/lock"), tr("&Lock Wallet...").remove('&').remove("..."));
     QAction* changePassword = menu.addAction(QIcon(":/menu_16/passphrase"), tr("&Change Passphrase...").remove('&').remove("..."));
+    QAction* hdSeed = menu.addAction(QIcon(":/menu_16/passphrase"), tr("Seed Phrase (HD Backup)..."));
     QAction* signMessage = menu.addAction(QIcon(":/menu_16/sign"), tr("Sign &message...").remove('&').remove("..."));
     QAction* verifySignature = menu.addAction(QIcon(":/menu_16/verify"), tr("&Verify message...").remove('&').remove("..."));
 
@@ -1508,6 +1514,10 @@ void TrianglesGUI::menuOperationsRequested()
         if (walletModel->getEncryptionStatus() == WalletModel::Unlocked || walletModel->getEncryptionStatus() == WalletModel::Locked)
             changePassphrase();
     }
+    else if (selected == hdSeed)
+    {
+        hdSeedManager();
+    }
     else if (selected == signMessage)
     {
         gotoSignMessageTab();
@@ -1614,6 +1624,15 @@ void TrianglesGUI::changePassphrase()
     dlg.exec();
 }
 
+void TrianglesGUI::hdSeedManager()
+{
+    if (!walletModel)
+        return;
+    HDSeedDialog dlg(this);
+    dlg.setModel(walletModel);
+    dlg.exec();
+}
+
 
 void TrianglesGUI::unlockWalletStaking()
 {

src/qt/trianglesgui.h

@@ -131,6 +131,7 @@ private:
     QAction *encryptWalletAction;
     QAction *backupWalletAction;
     QAction *changePassphraseAction;
+    QAction *hdSeedAction;
     QAction *unlockWalletAction;
     QAction *unlockWalletStakingAction;
     QAction *lockWalletAction;
@@ -243,6 +244,8 @@ private slots:
     void backupWallet();
     /** Change encrypted wallet passphrase */
     void changePassphrase();
+    /** Open the HD seed phrase (generate/restore/backup) dialog */
+    void hdSeedManager();
     /** Ask for passphrase to unlock wallet temporarily */
     void unlockWallet();
     /** Ask for passphrase to unlock wallet temporarily - FOR STAKING ONLY */

src/qt/walletmodel.cpp

@@ -676,3 +676,49 @@ void WalletModel::listLockedCoins(std::vector<COutPoint>& vOutpts)
 {
     return;
 }
+
+
+// ---- HD wallet (BIP39/BIP32) ----
+bool WalletModel::hdEnabled() const
+{
+    return wallet->IsHDEnabled();
+}
+
+bool WalletModel::hdNew(QString &mnemonicOut, QString &errorOut)
+{
+    std::string mnemonic, strError;
+    if (!wallet->SetHDSeed("", "", true, mnemonic, strError)) {
+        errorOut = QString::fromStdString(strError);
+        return false;
+    }
+    wallet->TopUpKeyPool();
+    mnemonicOut = QString::fromStdString(mnemonic);
+    return true;
+}
+
+bool WalletModel::hdRestore(const QString &mnemonic, QString &errorOut)
+{
+    std::string out, strError;
+    if (!wallet->SetHDSeed(mnemonic.toStdString(), "", false, out, strError)) {
+        errorOut = QString::fromStdString(strError);
+        return false;
+    }
+    wallet->TopUpKeyPool();
+    {
+        LOCK2(cs_main, wallet->cs_wallet);
+        wallet->ScanForWalletTransactions(pindexGenesisBlock, true);
+        wallet->ReacceptWalletTransactions();
+    }
+    return true;
+}
+
+bool WalletModel::hdShow(QString &mnemonicOut, QString &errorOut)
+{
+    std::string mnemonic;
+    if (!wallet->GetHDMnemonic(mnemonic)) {
+        errorOut = QObject::tr("Wallet has no HD seed (use 'Generate New').");
+        return false;
+    }
+    mnemonicOut = QString::fromStdString(mnemonic);
+    return true;
+}

src/qt/walletmodel.h

@@ -103,6 +103,12 @@ public:
     // Wallet backup
     bool backupWallet(const QString &filename);
 
+    // ---- HD wallet (BIP39/BIP32) ----
+    bool hdEnabled() const;
+    bool hdNew(QString &mnemonicOut, QString &errorOut);
+    bool hdRestore(const QString &mnemonic, QString &errorOut);
+    bool hdShow(QString &mnemonicOut, QString &errorOut);
+
     // RAI object for unlocking wallet, returned by requestUnlock()
     class UnlockContext
     {

src/rpcwallet.cpp

@@ -1858,3 +1858,78 @@ Value makekeypair(const Array& params, bool fHelp)
     result.push_back(Pair("PublicKey", HexStr(key.GetPubKey().Raw())));
 return result;
 }
+
+
+Value hdinfo(const Array& params, bool fHelp)
+{
+    if (fHelp || params.size() != 0)
+        throw runtime_error("hdinfo\nReturns HD (BIP39/BIP32) wallet status.");
+    Object obj;
+    obj.push_back(Pair("hdenabled", pwalletMain->IsHDEnabled()));
+    obj.push_back(Pair("coin_type", 2222));
+    obj.push_back(Pair("derivation_path", "m/44'/2222'/0'/0/i"));
+    obj.push_back(Pair("nextindex", (int64_t)pwalletMain->nHDChainIndex));
+    return obj;
+}
+
+Value hdnew(const Array& params, bool fHelp)
+{
+    if (fHelp || params.size() > 1)
+        throw runtime_error(
+            "hdnew [passphrase]\n"
+            "Generate a NEW 24-word HD seed phrase, activate it as this wallet's\n"
+            "deterministic seed, and return the phrase. WRITE IT DOWN: it is the\n"
+            "only backup of every address this wallet derives.");
+    EnsureWalletIsUnlocked();
+    if (pwalletMain->IsHDEnabled())
+        throw JSONRPCError(RPC_WALLET_ERROR, "Wallet already has an HD seed; use 'hdshow' to back it up.");
+    string passphrase = params.size() > 0 ? params[0].get_str() : "";
+    string mnemonic, strError;
+    if (!pwalletMain->SetHDSeed("", passphrase, true, mnemonic, strError))
+        throw JSONRPCError(RPC_WALLET_ERROR, strError);
+    pwalletMain->TopUpKeyPool();
+    Object obj;
+    obj.push_back(Pair("mnemonic", mnemonic));
+    obj.push_back(Pair("words", 24));
+    obj.push_back(Pair("warning", "Write these 24 words down and keep them secret and offline. Anyone with them can spend your coins."));
+    return obj;
+}
+
+Value hdrestore(const Array& params, bool fHelp)
+{
+    if (fHelp || params.size() < 1 || params.size() > 2)
+        throw runtime_error(
+            "hdrestore \"mnemonic\" [passphrase]\n"
+            "Activate an HD seed from an existing 24-word phrase, derive the keypool\n"
+            "and rescan the chain for funds on the derived addresses.");
+    EnsureWalletIsUnlocked();
+    string mnemonic = params[0].get_str();
+    string passphrase = params.size() > 1 ? params[1].get_str() : "";
+    string out, strError;
+    if (!pwalletMain->SetHDSeed(mnemonic, passphrase, false, out, strError))
+        throw JSONRPCError(RPC_WALLET_ERROR, strError);
+    pwalletMain->TopUpKeyPool();
+    {
+        LOCK2(cs_main, pwalletMain->cs_wallet);
+        pwalletMain->ScanForWalletTransactions(pindexGenesisBlock, true);
+        pwalletMain->ReacceptWalletTransactions();
+    }
+    Object obj;
+    obj.push_back(Pair("restored", true));
+    return obj;
+}
+
+Value hdshow(const Array& params, bool fHelp)
+{
+    if (fHelp || params.size() != 0)
+        throw runtime_error(
+            "hdshow\nReveal the wallet's HD mnemonic for backup. The wallet must be unlocked.");
+    EnsureWalletIsUnlocked();
+    string mnemonic;
+    if (!pwalletMain->GetHDMnemonic(mnemonic))
+        throw JSONRPCError(RPC_WALLET_ERROR, "Wallet has no HD seed (use 'hdnew' to create one).");
+    Object obj;
+    obj.push_back(Pair("mnemonic", mnemonic));
+    obj.push_back(Pair("warning", "Keep these words secret and offline."));
+    return obj;
+}

src/tor/tor_embedded.cpp

@@ -16,6 +16,8 @@
 #include <thread>
 #include <fstream>
 #include <cstring>
+#include <chrono>
+#include <ctime>
 #include <vector>
 #include <string>
 
@@ -122,11 +124,59 @@ bool CTorEmbedded::Start(int socks, int hsPort, bool enableHiddenService)
     // Prepare Tor data directory under the wallet's data dir
     torDataDir = (::GetDataDir() / "tor_data").string();
     fs::create_directories(torDataDir);
+    // CRITICAL: Tor refuses to use a DataDirectory readable by other users.
+    // Without 0700, tor_run_main() returns -1 and the embedded Tor never starts.
+    fs::permissions(torDataDir, fs::perms::owner_all, fs::perm_options::replace);
+
+    // triangles fix: auto-repair `state`-as-file corruption (pitfall #19).
+    // Tor's atomic state-write pattern is: write `state.tmp` → rename to `state`.
+    // If the daemon is killed or the process crashes mid-write, the rename can
+    // fail and `state` may be left as a regular file (or a partial file). On
+    // next start, Tor sees "State file ... is not a file? Failing." and dies
+    // with code -1 ("Reading config failed"). This was hit on DNS3 on
+    // 2026-05-24 and on the TRI-LAPTOP GUI wallet on 2026-06-15. The user-facing
+    // symptom is "Tor failed to start. Triangles requires Tor to operate." and
+    // the only fix was manually renaming the corrupt file. Detect this state
+    // here and auto-rename so the daemon is self-healing.
+    {
+        fs::path statePath = fs::path(torDataDir) / "state";
+        std::error_code ec;
+        if (fs::exists(statePath, ec) && !fs::is_directory(statePath, ec)) {
+            // state is a file (or symlink to one) — quarantine it
+            auto now = std::chrono::system_clock::now();
+            auto t = std::chrono::system_clock::to_time_t(now);
+            char ts[32];
+            std::strftime(ts, sizeof(ts), "%Y%m%d-%H%M%S", std::gmtime(&t));
+            fs::path quarantine = fs::path(torDataDir) /
+                (std::string("state.corrupt-") + ts);
+            try {
+                fs::rename(statePath, quarantine, ec);
+                if (ec) {
+                    // rename can fail on Windows if dest exists; remove then rename
+                    fs::remove(quarantine, ec);
+                    fs::rename(statePath, quarantine, ec);
+                }
+                printf("Tor state was a file (corrupt) — quarantined to %s for inspection. Tor will recreate state/ as a directory.\n",
+                       quarantine.filename().string().c_str());
+            } catch (const std::exception& e) {
+                printf("WARNING: could not quarantine corrupt Tor state file %s: %s\n",
+                       statePath.string().c_str(), e.what());
+                // Last resort: try to remove it so Tor can proceed
+                fs::remove(statePath, ec);
+            }
+        }
+    }
 
     std::string hsDir;
     if (hiddenServiceEnabled) {
         hsDir = (fs::path(torDataDir) / "hidden_service").string();
         fs::create_directories(hsDir);
+        // CRITICAL: Tor rejects hidden service directories that are not 0700
+        // ("Permissions on directory ... are too permissive") and aborts config
+        // validation with code -1. This was the root cause of "Embedded Tor
+        // exited with code -1" — fs::create_directories honors umask (0022 on
+        // most Linux systems), leaving the dir at 0755. Force 0700 after creation.
+        fs::permissions(hsDir, fs::perms::owner_all, fs::perm_options::replace);
     }
 
     // Build the argv for tor_run_main

src/tor/tor_process.cpp

@@ -259,10 +259,34 @@ bool CTorProcess::WriteTorrc()
     // SOCKS proxy for wallet connections
     torrc << "SocksPort " << socksPort << "\n";
 
-    // Data directory for Tor state
-    fs::path torStateDir = dataPath / "state";
-    fs::create_directories(torStateDir);
-    torrc << "DataDirectory " << torStateDir.string() << "\n";
+    // Data directory for Tor state.
+    // Use the tor_data directory itself as DataDirectory so that Tor creates
+    // its internal 'state' FILE at <tor_data>/state.  Older wallet builds
+    // erroneously created a subdirectory called 'state' and pointed
+    // DataDirectory at it; newer Tor versions (0.4.9+) reject that because
+    // they expect to write a plain file called 'state' inside DataDirectory.
+    //
+    // Recovery: if 'state' exists as a directory, move its contents up and
+    // remove it so that Tor can create its state file in the normal location.
+    {
+        fs::path badStateDir = dataPath / "state";
+        if (fs::exists(badStateDir) && fs::is_directory(badStateDir)) {
+            // Migrate any files inside the bad 'state/' directory up to dataPath
+            try {
+                for (auto& entry : fs::directory_iterator(badStateDir)) {
+                    fs::path dest = dataPath / entry.path().filename();
+                    if (!fs::exists(dest)) {
+                        fs::rename(entry.path(), dest);
+                    }
+                }
+                fs::remove(badStateDir);
+                printf("Auto-recovered: removed legacy 'state' directory from %s\n", dataPath.string().c_str());
+            } catch (const fs::filesystem_error& e) {
+                printf("WARNING: Could not auto-recover tor_data/state directory: %s\n", e.what());
+            }
+        }
+    }
+    torrc << "DataDirectory " << dataPath.string() << "\n";
 
     // Persistent Tor log for post-mortem debugging on user machines.
     fs::path torLogPath = dataPath / "tor.log";

src/trianglesrpc.cpp

@@ -305,6 +305,10 @@ static const CRPCCommand vRPCCommands[] =
     { "settxfee",               &settxfee,               false,  false },
     { "listsinceblock",         &listsinceblock,         false,  false },
     { "dumpprivkey",            &dumpprivkey,            false,  false },
+    { "hdnew",                  &hdnew,                  false,  false },
+    { "hdrestore",              &hdrestore,              false,  false },
+    { "hdshow",                 &hdshow,                 false,  false },
+    { "hdinfo",                 &hdinfo,                 true,   false },
     { "dumpwallet",             &dumpwallet,             true,   false },
     { "importwallet",           &importwallet,           false,  false },
     { "importprivkey",          &importprivkey,          false,  false },
@@ -546,10 +550,17 @@ int ReadHTTP(std::basic_istream<char>& stream, map<string, string>& mapHeadersRe
 bool HTTPAuthorized(map<string, string>& mapHeaders)
 {
     string strAuth = mapHeaders["authorization"];
-    if (strAuth.substr(0,6) != "Basic ")
+    if (strAuth.size() < 6 || strAuth.substr(0,6) != "Basic ")
         return false;
     string strUserPass64 = strAuth.substr(6); strUserPass64 = TrimString(strUserPass64);
-    string strUserPass = DecodeBase64(strUserPass64);
+    if (strUserPass64.empty())
+        return false;
+    string strUserPass;
+    try {
+        strUserPass = DecodeBase64(strUserPass64);
+    } catch (const std::exception&) {
+        return false;
+    }
     return TimingResistantEqual(strUserPass, strRPCUserColonPass);
 }
 
@@ -783,44 +794,61 @@ static void RPCAcceptHandler(boost::shared_ptr< basic_socket_acceptor<Protocol,
 {
     vnThreadsRunning[THREAD_RPCLISTENER]++;
 
-    // Immediately start accepting new connections, except when we're cancelled or our socket is closed.
-    if (error != asio::error::operation_aborted
-     && acceptor->is_open())
-        RPCListen(acceptor, context, fUseSSL);
+    try {
+        // Immediately start accepting new connections, except when we're cancelled or our socket is closed.
+        if (error != asio::error::operation_aborted
+         && acceptor->is_open())
+            RPCListen(acceptor, context, fUseSSL);
 
-    AcceptedConnectionImpl<ip::tcp>* tcp_conn = dynamic_cast< AcceptedConnectionImpl<ip::tcp>* >(conn);
+        AcceptedConnectionImpl<ip::tcp>* tcp_conn = dynamic_cast< AcceptedConnectionImpl<ip::tcp>* >(conn);
 
-    if (error)
-    {
-        if (error != asio::error::operation_aborted)
-            printf("RPC accept error from %s: %s (%d)\n",
-                   tcp_conn ? tcp_conn->peer.address().to_string().c_str() : "unknown peer",
-                   error.message().c_str(),
-                   error.value());
+        if (error)
+        {
+            if (error != asio::error::operation_aborted)
+                printf("RPC accept error from %s: %s (%d)\n",
+                       tcp_conn ? tcp_conn->peer.address().to_string().c_str() : "unknown peer",
+                       error.message().c_str(),
+                       error.value());
+            delete conn;
+            vnThreadsRunning[THREAD_RPCLISTENER]--;
+            return;
+        }
+
+        // Restrict callers by IP.  It is important to
+        // do this before starting client thread, to filter out
+        // certain DoS and misbehaving clients.
+        else if (tcp_conn
+              && !ClientAllowed(tcp_conn->peer.address()))
+        {
+            // Only send a 403 if we're not using SSL to prevent a DoS during the SSL handshake.
+            try {
+                if (!fUseSSL)
+                    conn->stream() << HTTPReply(HTTP_FORBIDDEN, "", false) << std::flush;
+            } catch (const std::exception& e) {
+                printf("RPC error sending 403 to %s: %s\n",
+                       tcp_conn->peer.address().to_string().c_str(), e.what());
+            }
+            delete conn;
+            vnThreadsRunning[THREAD_RPCLISTENER]--;
+            return;
+        }
+
+        // start HTTP client thread
+        else if (!NewThread(ThreadRPCServer3, conn)) {
+            printf("Failed to create RPC server client thread\n");
+            delete conn;
+        }
+
+        vnThreadsRunning[THREAD_RPCLISTENER]--;
+    } catch (std::exception& e) {
+        PrintException(&e, "RPCAcceptHandler()");
         delete conn;
         vnThreadsRunning[THREAD_RPCLISTENER]--;
-        return;
-    }
-
-    // Restrict callers by IP.  It is important to
-    // do this before starting client thread, to filter out
-    // certain DoS and misbehaving clients.
-    else if (tcp_conn
-          && !ClientAllowed(tcp_conn->peer.address()))
-    {
-        // Only send a 403 if we're not using SSL to prevent a DoS during the SSL handshake.
-        if (!fUseSSL)
-            conn->stream() << HTTPReply(HTTP_FORBIDDEN, "", false) << std::flush;
+    } catch (...) {
+        PrintException(NULL, "RPCAcceptHandler()");
         delete conn;
+        vnThreadsRunning[THREAD_RPCLISTENER]--;
     }
-
-    // start HTTP client thread
-    else if (!NewThread(ThreadRPCServer3, conn)) {
-        printf("Failed to create RPC server client thread\n");
-        delete conn;
-    }
-
-    vnThreadsRunning[THREAD_RPCLISTENER]--;
 }
 
 void ThreadRPCServer2(void* parg)
@@ -1128,6 +1156,7 @@ void ThreadRPCServer3(void* parg)
     AcceptedConnection *conn = (AcceptedConnection *) parg;
 
     bool fRun = true;
+    try {
     while (true)
     {
         if (fShutdown || !fRun)
@@ -1247,6 +1276,13 @@ void ThreadRPCServer3(void* parg)
         }
     }
 
+    } // end try
+    catch (std::exception& e) {
+        PrintException(&e, "ThreadRPCServer3()");
+    } catch (...) {
+        PrintException(NULL, "ThreadRPCServer3()");
+    }
+
     delete conn;
     {
         LOCK(cs_THREAD_RPCHANDLER);

src/trianglesrpc.h

@@ -155,6 +155,10 @@ extern json_spirit::Value getwalletinfo(const json_spirit::Array& params, bool f
 extern json_spirit::Value dumpwallet(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value importwallet(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value dumpprivkey(const json_spirit::Array& params, bool fHelp); // in rpcdump.cpp
+extern json_spirit::Value hdnew(const json_spirit::Array& params, bool fHelp);
+extern json_spirit::Value hdrestore(const json_spirit::Array& params, bool fHelp);
+extern json_spirit::Value hdshow(const json_spirit::Array& params, bool fHelp);
+extern json_spirit::Value hdinfo(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value importprivkey(const json_spirit::Array& params, bool fHelp);
 
 extern json_spirit::Value getsubsidy(const json_spirit::Array& params, bool fHelp);

src/txdb-leveldb.cpp

@@ -514,6 +514,20 @@ bool CTxDB::LoadBlockIndex()
     nBestHeight = pindexBest->nHeight;
     nBestChainTrust = pindexBest->nChainTrust;
 
+    // Heal pnext pointers along the active chain.  Persisted hashNext can be
+    // stale or zeroed by crash-interrupted reorgs, which breaks
+    // GetKernelStakeModifier()'s forward walk and causes valid new
+    // proof-of-stake blocks to be rejected with "check kernel failed".
+    {
+        int nHealed = 0;
+        for (CBlockIndex* p = pindexBest; p && p->pprev; p = p->pprev)
+        {
+            if (p->pprev->pnext != p) { p->pprev->pnext = p; nHealed++; }
+        }
+        if (nHealed > 0)
+            printf("LoadBlockIndex(): healed %d pnext links on active chain\n", nHealed);
+    }
+
     printf("STARTUP-PERF: best_chain %" PRId64 "ms\n", GetTimeMillis() - nPhaseStart);
 
     nPhaseStart = GetTimeMillis();

src/txdb-rocksdb.cpp

@@ -542,6 +542,20 @@ bool CRocksTxDB::LoadBlockIndex()
     nBestHeight = pindexBest->nHeight;
     nBestChainTrust = pindexBest->nChainTrust;
 
+    // Heal pnext pointers along the active chain.  Persisted hashNext can be
+    // stale or zeroed by crash-interrupted reorgs, which breaks
+    // GetKernelStakeModifier()'s forward walk and causes valid new
+    // proof-of-stake blocks to be rejected with "check kernel failed".
+    {
+        int nHealed = 0;
+        for (CBlockIndex* p = pindexBest; p && p->pprev; p = p->pprev)
+        {
+            if (p->pprev->pnext != p) { p->pprev->pnext = p; nHealed++; }
+        }
+        if (nHealed > 0)
+            printf("LoadBlockIndex(): healed %d pnext links on active chain\n", nHealed);
+    }
+
     printf("STARTUP-PERF: best_chain %" PRId64 "ms\n", GetTimeMillis() - nPhaseStart);
 
     nPhaseStart = GetTimeMillis();

src/utxosnapshot.cpp

@@ -8,6 +8,12 @@
 #include "checkpoints.h"
 #include "util.h"
 #include "ui_interface.h"
+#include "addressindex.h"
+
+#include <variant>
+
+// defined in main.cpp
+extern bool fAddressIndex;
 
 #include <filesystem>
 
@@ -190,13 +196,38 @@ bool DumpSnapshot(const fs::path& destPath,
     return true;
 }
 
+// Extract (type, hash160) from a scriptPubKey for the address index.
+// Mirrors GetAddressFromScript() in main.cpp (which is file-static there).
+static bool SnapAddressFromScript(const CScript& script, int& nType, uint160& hashBytes)
+{
+    CTxDestination dest;
+    if (!ExtractDestination(script, dest))
+        return false;
+    if (const CKeyID* keyId = std::get_if<CKeyID>(&dest)) {
+        nType = ADDR_TYPE_P2PKH; hashBytes = *keyId; return true;
+    }
+    if (const CScriptID* scriptId = std::get_if<CScriptID>(&dest)) {
+        nType = ADDR_TYPE_P2SH; hashBytes = *scriptId; return true;
+    }
+    return false;
+}
+
 // ---------------------------------------------------------------------------
 // LoadSnapshot - load a UTXO snapshot into a fresh LevelDB
+//
+// `requireCheckpoint` controls whether the snapshot's tip block must be a
+// known checkpoint. This gate exists to prevent malicious P2P peers from
+// tricking the daemon into accepting a fake UTXO set at an arbitrary
+// height on an alternate chain. Local file loads (operator already has
+// filesystem access, so the trust model is the same as editing the chain
+// state directly) skip the gate via requireCheckpoint=false. P2P-delivered
+// snapshots (SnapshotNet) keep the gate on.
 // ---------------------------------------------------------------------------
 
 bool LoadSnapshot(const fs::path& snapshotPath,
                   const fs::path& /*dataDir — unused; resolved per-backend via GetChainDataDir()*/,
-                  std::string& strError)
+                  std::string& strError,
+                  bool requireCheckpoint)
 {
     FILE* file = fopen(snapshotPath.string().c_str(), "rb");
     if (!file) {
@@ -252,8 +283,9 @@ bool LoadSnapshot(const fs::path& snapshotPath,
         return false;
     }
 
-    // Verify snapshot block is a known checkpoint
-    if (!Checkpoints::IsKnownCheckpoint(height, blockHash)) {
+    // Verify snapshot block is a known checkpoint (only for P2P-delivered
+    // snapshots — local files are operator-trusted and can be at any height)
+    if (requireCheckpoint && !Checkpoints::IsKnownCheckpoint(height, blockHash)) {
         fclose(file);
         strError = "Snapshot block " + blockHash.ToString() + " at height "
                  + std::to_string(height) + " is not a known checkpoint";
@@ -383,6 +415,19 @@ bool LoadSnapshot(const fs::path& snapshotPath,
                 strError = "WriteUtxo failed at index " + std::to_string(i);
                 break;
             }
+
+            // Address index: snapshot UTXOs are all unspent -> credit balance + record UTXO.
+            if (::fAddressIndex && !entry.scriptPubKey.empty() && entry.nValue != 0) {
+                int nAType; uint160 aHash;
+                if (SnapAddressFromScript(entry.scriptPubKey, nAType, aHash)) {
+                    txdb.WriteAddressUtxo(nAType, aHash, txhash, nIndex,
+                                          entry.nValue, entry.nHeight, entry.scriptPubKey);
+                    int64_t nABal = 0;
+                    txdb.ReadAddressBalance(nAType, aHash, nABal);
+                    nABal += entry.nValue;
+                    txdb.WriteAddressBalance(nAType, aHash, nABal);
+                }
+            }
             nBatchSize++;
 
             if (nBatchSize >= 50000) {

src/utxosnapshot.h

@@ -29,10 +29,14 @@ namespace UtxoSnapshot {
     // Load a UTXO snapshot from a file into a fresh LevelDB.
     // Writes block index entries, UTXOs, hashBestChain, and dbformat.
     // The LevelDB must NOT be open yet (call before LoadBlockIndex).
+    // `requireCheckpoint` enforces that the snapshot tip is a known
+    // checkpoint (for P2P-delivered snapshots). Local loads from a
+    // trusted operator pass false.
     // Returns true on success, sets strError on failure.
     bool LoadSnapshot(const std::filesystem::path& snapshotPath,
                       const std::filesystem::path& dataDir,
-                      std::string& strError);
+                      std::string& strError,
+                      bool requireCheckpoint);
 
 } // namespace UtxoSnapshot
 

src/wallet.cpp

@@ -7,12 +7,14 @@
 #include "wallet.h"
 #include "walletdb.h"
 #include "crypter.h"
+#include "hdwallet.h"
 #include "ui_interface.h"
 #include "base58.h"
 #include "kernel.h"
 #include "coincontrol.h"
 #include "addressindex.h"
 #include "util.h"
+#include <cstring>
 #include <memory>
 #include <algorithm>
 #include <random>
@@ -129,7 +131,12 @@ CPubKey CWallet::GenerateNewKey()
 
     RandAddSeedPerfmon();
     CKey key;
-    key.MakeNewKey(fCompressed);
+    bool fUsedHD = false;
+    if (fHDEnabled && !hdMnemonic.empty()) {
+        if (DeriveHDKey(nHDChainIndex, key)) { fUsedHD = true; fCompressed = true; }
+    }
+    if (!fUsedHD)
+        key.MakeNewKey(fCompressed);
 
     // Compressed public keys were introduced in version 0.6.0
     if (fCompressed)
@@ -145,6 +152,11 @@ CPubKey CWallet::GenerateNewKey()
 
     if (!AddKey(key))
         throw std::runtime_error("CWallet::GenerateNewKey() : AddKey failed");
+    if (fUsedHD) {
+        nHDChainIndex++;
+        if (fFileBacked)
+            CWalletDB(strWalletFile).WriteHDChain(nHDChainIndex);
+    }
     return key.GetPubKey();
 }
 
@@ -209,6 +221,9 @@ bool CWallet::Lock()
     if (fDebug)
         printf("Locking wallet.\n");
 
+    if (IsCrypted())
+        hdMnemonic.clear(); // keep only the encrypted copy while locked
+
     {
         LOCK(cs_wallet);
         CWalletDB wdb(strWalletFile);
@@ -233,8 +248,14 @@ bool CWallet::Unlock(const SecureString& strWalletPassphrase)
                 return false;
             if (!crypter.Decrypt(pMasterKey.second.vchCryptedKey, vMasterKey))
                 return false;
-            if (CCryptoKeyStore::Unlock(vMasterKey))
+            if (CCryptoKeyStore::Unlock(vMasterKey)) {
+                if (fHDEnabled && hdMnemonic.empty() && !vchCryptedHDMnemonic.empty()) {
+                    CSecret sec;
+                    if (DecryptSecret(vMasterKey, vchCryptedHDMnemonic, hdMnemonicIV, sec))
+                        hdMnemonic.assign(sec.begin(), sec.end());
+                }
                 return true;
+            }
         }
 
         SecureMsgWalletUnlocked();
@@ -407,6 +428,15 @@ bool CWallet::EncryptWallet(const SecureString& strWalletPassphrase)
                 return false;
             }
 
+            if (fHDEnabled && !hdMnemonic.empty()) {
+                CSecret sec(hdMnemonic.begin(), hdMnemonic.end());
+                uint256 iv = GetRandHash();
+                std::vector<unsigned char> cipher;
+                if (!EncryptSecret(vMasterKey, sec, iv, cipher)) { dbEnc->TxnAbort(); return false; }
+                hdMnemonicIV = iv; vchCryptedHDMnemonic = cipher;
+                dbEnc->WriteHDCryptedMnemonic(iv, cipher);
+            }
+
             SetMinVersion(WalletFeature::WalletCrypt, dbEnc.get(), true);
 
             if (!dbEnc->TxnCommit())
@@ -2848,3 +2878,66 @@ void CWallet::GetKeyBirthTimes(std::map<CKeyID, int64_t> &mapKeyBirth) const {
 }
 
 
+// ---- HD wallet (BIP39/BIP32) implementation ----
+bool CWallet::DeriveHDKey(int64_t index, CKey& keyOut) const
+{
+    if (hdMnemonic.empty())
+        return false;
+    unsigned char priv[32];
+    if (!hd::DeriveTriangles(hdMnemonic, "", 0, 0, (uint32_t)index, priv))
+        return false;
+    CSecret secret(priv, priv + 32);
+    memset(priv, 0, sizeof(priv));
+    keyOut.SetSecret(secret, true); // HD keys are compressed
+    return true;
+}
+
+bool CWallet::GetHDMnemonic(std::string& mnemonicOut) const
+{
+    if (!fHDEnabled || hdMnemonic.empty())
+        return false;
+    mnemonicOut = hdMnemonic;
+    return true;
+}
+
+bool CWallet::SetHDSeed(const std::string& mnemonicIn, const std::string& passphrase, bool fGenerate, std::string& mnemonicOut, std::string& strError)
+{
+    LOCK(cs_wallet);
+    if (IsLocked()) { strError = "Wallet is locked; unlock it before setting an HD seed."; return false; }
+
+    std::string m = mnemonicIn;
+    if (m.empty()) {
+        if (!fGenerate) { strError = "No mnemonic supplied."; return false; }
+        m = hd::GenerateMnemonic(256);
+        if (m.empty()) { strError = "Failed to generate mnemonic."; return false; }
+    }
+    if (!hd::CheckMnemonic(m)) { strError = "Invalid mnemonic (unknown word or bad checksum)."; return false; }
+
+    unsigned char priv[32];
+    if (!hd::DeriveTriangles(m, passphrase, 0, 0, 0, priv)) { strError = "Key derivation failed."; return false; }
+    memset(priv, 0, sizeof(priv));
+
+    hdMnemonic = m;
+    fHDEnabled = true;
+    nHDChainIndex = 0;
+
+    if (fFileBacked) {
+        CWalletDB wdb(strWalletFile);
+        if (IsCrypted()) {
+            CSecret sec(m.begin(), m.end());
+            uint256 iv = GetRandHash();
+            std::vector<unsigned char> cipher;
+            if (!EncryptSecret(vMasterKey, sec, iv, cipher)) { strError = "Failed to encrypt seed."; return false; }
+            hdMnemonicIV = iv; vchCryptedHDMnemonic = cipher;
+            wdb.WriteHDCryptedMnemonic(iv, cipher);
+        } else {
+            wdb.WriteHDMnemonic(m);
+        }
+        wdb.WriteHDChain(nHDChainIndex);
+    }
+    // Replace any pre-existing (random) keypool with HD-derived keys so that
+    // getnewaddress immediately hands out deterministic m/44'/2222'/0'/0/i keys.
+    NewKeyPool();
+    mnemonicOut = m;
+    return true;
+}

src/wallet.h

@@ -105,6 +105,8 @@ public:
         fFileBacked = false;
         nMasterKeyMaxID = 0;
         pwalletdbEncryption = nullptr;
+        fHDEnabled = false;
+        nHDChainIndex = 0;
         nOrderPosNext = 0;
         nCachedStakeWeight = 0;
         nCachedStakeWeightTime = 0;
@@ -124,6 +126,13 @@ public:
     CPubKey vchDefaultKey;
     int64_t nTimeFirstKey;
 
+    // ---- HD (BIP39/BIP32) wallet state ----
+    bool fHDEnabled;                              // an HD seed has been set
+    int64_t nHDChainIndex;                        // next external index (m/44'/2222'/0'/0/n)
+    std::string hdMnemonic;                       // in-memory phrase (present when unlocked/unencrypted)
+    std::vector<unsigned char> vchCryptedHDMnemonic; // encrypted phrase (loaded, decrypted on unlock)
+    uint256 hdMnemonicIV;                         // IV for the encrypted phrase
+
     // check whether we are allowed to upgrade (or already support) to the named feature
     bool CanSupportFeature(WalletFeature wf) { return nWalletMaxVersion >= static_cast<int>(wf); }
 
@@ -133,6 +142,14 @@ public:
     // keystore implementation
     // Generate a new key
     CPubKey GenerateNewKey();
+
+    // ---- HD wallet (BIP39/BIP32) ----
+    bool IsHDEnabled() const { return fHDEnabled; }
+    bool SetHDSeed(const std::string& mnemonicIn, const std::string& passphrase, bool fGenerate, std::string& mnemonicOut, std::string& strError);
+    bool GetHDMnemonic(std::string& mnemonicOut) const;
+    bool DeriveHDKey(int64_t index, CKey& keyOut) const;
+    bool LoadHDMnemonic(const std::string& m) { hdMnemonic = m; fHDEnabled = true; return true; }
+    bool LoadCryptedHDMnemonic(const uint256& iv, const std::vector<unsigned char>& cipher) { hdMnemonicIV = iv; vchCryptedHDMnemonic = cipher; fHDEnabled = true; return true; }
     // Adds a key to the store, and saves it to disk.
     bool AddKey(const CKey& key);
     // Adds a key to the store, without saving it to disk (used by LoadWallet)

src/walletdb.cpp

@@ -429,6 +429,24 @@ ReadKeyValue(CWallet* pwallet, CDataStream& ssKey, CDataStream& ssValue,
                 pwallet->mapKeyMetadata[keyid] = CKeyMetadata(keypool.nTime);
 
         }
+        else if (strType == "hdmnemonic")
+        {
+            std::string m;
+            ssValue >> m;
+            pwallet->LoadHDMnemonic(m);
+        }
+        else if (strType == "hdcmnemonic")
+        {
+            std::pair<uint256, std::vector<unsigned char> > cm;
+            ssValue >> cm;
+            pwallet->LoadCryptedHDMnemonic(cm.first, cm.second);
+        }
+        else if (strType == "hdchain")
+        {
+            int64_t n;
+            ssValue >> n;
+            pwallet->nHDChainIndex = n;
+        }
         else if (strType == "version")
         {
             ssValue >> wss.nFileVersion;
@@ -461,7 +479,8 @@ ReadKeyValue(CWallet* pwallet, CDataStream& ssKey, CDataStream& ssValue,
 static bool IsKeyType(string strType)
 {
     return (strType== "key" || strType == "wkey" ||
-            strType == "mkey" || strType == "ckey");
+            strType == "mkey" || strType == "ckey" ||
+            strType == "hdmnemonic" || strType == "hdcmnemonic");
 }
 
 DBErrors CWalletDB::LoadWallet(CWallet* pwallet)

src/walletdb.h

@@ -169,6 +169,21 @@ public:
         return Write(std::string("defaultkey"), vchPubKey.Raw());
     }
 
+    bool WriteHDMnemonic(const std::string& mnemonic) {
+        nWalletDBUpdated++;
+        Erase(std::string("hdcmnemonic"));
+        return Write(std::string("hdmnemonic"), mnemonic);
+    }
+    bool WriteHDCryptedMnemonic(const uint256& iv, const std::vector<unsigned char>& cipher) {
+        nWalletDBUpdated++;
+        Erase(std::string("hdmnemonic"));
+        return Write(std::string("hdcmnemonic"), std::make_pair(iv, cipher));
+    }
+    bool WriteHDChain(int64_t nIndex) {
+        nWalletDBUpdated++;
+        return Write(std::string("hdchain"), nIndex);
+    }
+
     bool ReadPool(int64_t nPool, CKeyPool& keypool)
     {
         return Read(std::make_pair(std::string("pool"), nPool), keypool);