Remove FALLBACK_HOST reference from introdialog.cpp (fix Qt build)

The clearnet fallback host was removed from bootstrap.h in the previous
commit but introdialog.cpp still referenced Bootstrap::FALLBACK_HOST.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.github/workflows/build-all.yml

@@ -153,14 +153,15 @@ jobs:
           New-Item -ItemType Directory -Path tor-extract -Force
           tar -xzf tor-bundle.tar.gz -C tor-extract
           New-Item -ItemType Directory -Path tor-files -Force
-          Copy-Item tor-extract/tor/tor.exe tor-files/
-          Copy-Item tor-extract/tor/tor-gencert.exe tor-files/ -ErrorAction SilentlyContinue
+          Copy-Item -Recurse tor-extract/tor/* tor-files/
           if (Test-Path tor-extract/tor/pluggable_transports) {
-            Copy-Item -Recurse tor-extract/tor/pluggable_transports tor-files/
+            Copy-Item -Recurse tor-extract/tor/pluggable_transports tor-files/pluggable_transports -Force
           }
           if (Test-Path tor-extract/data) {
             Copy-Item -Recurse tor-extract/data tor-files/data
           }
+          Write-Host "Bundled Tor runtime files:"
+          Get-ChildItem -Recurse tor-files | Select-Object FullName
 
       - name: Install NSIS via MSYS2
         run: pacman -S --noconfirm mingw-w64-x86_64-nsis
@@ -240,7 +241,7 @@ jobs:
           Invoke-WebRequest -Uri "https://archive.torproject.org/tor-package-archive/torbrowser/${TOR_VERSION}/tor-expert-bundle-windows-x86_64-${TOR_VERSION}.tar.gz" -OutFile tor-bundle.tar.gz
           New-Item -ItemType Directory -Path tor-extract -Force
           tar -xzf tor-bundle.tar.gz -C tor-extract
-          Copy-Item tor-extract/tor/tor.exe daemon-dist/tor/
+          Copy-Item -Recurse tor-extract/tor/* daemon-dist/tor/
           if (Test-Path tor-extract/data) {
             Copy-Item -Recurse tor-extract/data daemon-dist/tor/data
           }

CMakeLists.txt

@@ -6,7 +6,7 @@ if(POLICY CMP0167)
 endif()
 
 project(Triangles
-    VERSION 5.7.6.0
+    VERSION 5.8.0.0
     DESCRIPTION "Cryptographic Triangles Wallet"
     LANGUAGES C CXX
 )

README.md

@@ -1,4 +1,4 @@
-# Cryptographic Triangles (TRI) - v5.1.5
+# Cryptographic Triangles (TRI)
 
 Triangles is a privacy-focused cryptocurrency featuring Proof-of-Stake consensus, Tor v3 onion routing, and built-in encrypted messaging. Originally launched in July 2014, the chain was revived in March 2026 after being frozen since December 2022.
 
@@ -16,7 +16,7 @@ Triangles is a privacy-focused cryptocurrency featuring Proof-of-Stake consensus
 |----------|-------|
 | Algorithm | Hash9 (PoW blocks 0-9000), PoS from block 9001 |
 | Block Time | ~120 seconds |
-| Max Supply | 222,222 TRI |
+| Max Supply | 2,222,222 TRI |
 | PoS Reward | 33% annual, coin-age based |
 | P2P Port | 24112 |
 | RPC Port | 19112 |
@@ -24,11 +24,7 @@ Triangles is a privacy-focused cryptocurrency featuring Proof-of-Stake consensus
 
 ## Network Status
 
-The Triangles network is live with seed nodes operating on both clearnet and Tor:
-
-**Clearnet Seeds:**
-- `194.233.88.206:24112`
-- `74.208.167.19:24112`
+The Triangles network operates exclusively over Tor for privacy:
 
 **Tor v3 Seeds:**
 - `gxvrhv3qitnc6kobrhsrse46bmcfitnybapor3or3oczzuxn6hfzxyid.onion:24112`
@@ -40,32 +36,46 @@ The Triangles network is live with seed nodes operating on both clearnet and Tor
 
 ## Building from Source
 
+Triangles uses CMake. All platforms follow the same build pattern.
+
+### Dependencies
+
+| Dependency | Minimum Version |
+|------------|----------------|
+| CMake | 3.16+ |
+| C++ compiler | C++17 support |
+| OpenSSL | 3.x |
+| Boost | 1.90+ |
+| Berkeley DB | 5.3 (with C++ bindings) |
+| libevent | 2.x |
+| LevelDB | bundled |
+
 ### Linux (Ubuntu 24.04 / Debian 12+)
 
 Install dependencies:
 ```bash
-sudo apt-get install -y build-essential libboost-all-dev libssl-dev \
-    libdb5.3++-dev libevent-dev zlib1g-dev libminiupnpc-dev
+sudo apt-get install -y build-essential cmake ninja-build \
+    libboost-all-dev libssl-dev libdb5.3++-dev libevent-dev \
+    zlib1g-dev libminiupnpc-dev
 ```
 
-Build the daemon:
+For the Qt wallet, also install:
 ```bash
-cd src/leveldb && make libleveldb.a libmemenv.a && cd ..
-make -j$(nproc) -f makefile.unix USE_UPNP=0
-strip trianglesd
+sudo apt-get install -y qtbase5-dev qt5-qmake libqrencode-dev
 ```
 
-Run the unit test suite:
+Build:
 ```bash
-make -C src -f makefile.unix test
+cmake -B build -G Ninja -DBUILD_QT=ON
+cmake --build build
 ```
 
 ### Linux (AlmaLinux 9 / RHEL 9)
 
 Install dependencies:
 ```bash
-sudo dnf install -y gcc-c++ make boost-devel openssl-devel libevent-devel \
-    zlib-devel miniupnpc-devel
+sudo dnf install -y gcc-c++ cmake ninja-build boost-devel openssl-devel \
+    libevent-devel zlib-devel miniupnpc-devel
 ```
 
 BDB 5.3 C++ bindings must be built from source on RHEL-based systems (the `libdb-devel` package does not include C++ headers). Download BDB 5.3.28 from Oracle and build with `--enable-cxx`.
@@ -76,17 +86,27 @@ Then build as above.
 
 Open an MSYS2 MinGW64 shell and install:
 ```bash
-pacman -S mingw-w64-x86_64-boost mingw-w64-x86_64-openssl \
+pacman -S mingw-w64-x86_64-cmake mingw-w64-x86_64-ninja \
+    mingw-w64-x86_64-boost mingw-w64-x86_64-openssl \
     mingw-w64-x86_64-db mingw-w64-x86_64-miniupnpc \
-    mingw-w64-x86_64-qt5-base mingw-w64-x86_64-qrencode
+    mingw-w64-x86_64-qt5-base mingw-w64-x86_64-qrencode \
+    mingw-w64-x86_64-libevent
 ```
 
-Build the Qt wallet:
+Build:
 ```bash
-qmake triangles-qt.pro
-make -j$(nproc)
+cmake -B build -G Ninja -DBUILD_QT=ON
+cmake --build build
 ```
 
+### Build Options
+
+| Option | Default | Description |
+|--------|---------|-------------|
+| `BUILD_QT` | ON | Build the Qt GUI wallet |
+| `BUILD_DAEMON` | ON | Build the headless daemon |
+| `BUILD_TESTS` | OFF | Build unit tests |
+
 ## Running
 
 ### First Run
@@ -103,15 +123,13 @@ txindex=1
 listen=1
 server=1
 daemon=1
-addnode=194.233.88.206
-addnode=74.208.167.19
-externalip=<your-public-ip>
+proxy=127.0.0.1:9050
 EOF
 
 trianglesd
 ```
 
-The node will connect to seed nodes and sync the blockchain automatically.
+The node will connect to seed nodes over Tor and sync the blockchain automatically.
 
 ### Existing Wallet Holders
 
@@ -155,7 +173,7 @@ Messages are encrypted end-to-end using AES and distributed through the peer net
 
 ### Tor Support
 
-To connect through Tor, install the Tor daemon and add to your config:
+Triangles is designed as a Tor-only network. Install the Tor daemon and configure your proxy:
 ```
 # triangles.conf
 proxy=127.0.0.1:9050
@@ -199,7 +217,7 @@ Then set `externalip=<your-onion-address>` in `triangles.conf`.
 - **Block 9001+** - Proof-of-Stake only
 - **Block 17,651** - V5 hard fork (removed Tor v2, disabled checkpoint master key)
 - **December 8, 2022** - Chain frozen (all nodes offline)
-- **March 11, 2026** - Chain revived with v5.0.0.0, staking resumed
+- **March 11, 2026** - Chain revived, staking resumed
 
 ## Project Structure
 

cmake/GenerateBuildInfoScript.cmake

@@ -1,6 +1,7 @@
 # cmake/GenerateBuildInfoScript.cmake
 # Called at build time by the custom target in GenerateBuildInfo.cmake.
-# Replicates the logic of share/genbuild.sh.
+# Reads the version from clientversion.h (single source of truth) and
+# appends git commit info for non-release builds.
 
 # Read existing build.h first line if it exists
 set(OLD_LINE "")
@@ -11,31 +12,69 @@ if(EXISTS "${OUTPUT_FILE}")
     endif()
 endif()
 
-# Try exact tag match first (release builds)
+# ── Read version from clientversion.h ──
+file(STRINGS "${SOURCE_DIR}/src/clientversion.h" _ver_lines)
+foreach(_line ${_ver_lines})
+    if(_line MATCHES "^#define CLIENT_VERSION_MAJOR +([0-9]+)")
+        set(VER_MAJOR "${CMAKE_MATCH_1}")
+    elseif(_line MATCHES "^#define CLIENT_VERSION_MINOR +([0-9]+)")
+        set(VER_MINOR "${CMAKE_MATCH_1}")
+    elseif(_line MATCHES "^#define CLIENT_VERSION_REVISION +([0-9]+)")
+        set(VER_REVISION "${CMAKE_MATCH_1}")
+    elseif(_line MATCHES "^#define CLIENT_VERSION_BUILD +([0-9]+)")
+        set(VER_BUILD "${CMAKE_MATCH_1}")
+    endif()
+endforeach()
+
+set(BASE_VERSION "v${VER_MAJOR}.${VER_MINOR}.${VER_REVISION}.${VER_BUILD}")
+
+# ── Get git commit info (suffix only, not the version number) ──
+set(GIT_SUFFIX "")
+
+# Get short commit hash
 execute_process(
-    COMMAND git describe --tags --exact-match
+    COMMAND git rev-parse --short HEAD
     WORKING_DIRECTORY "${SOURCE_DIR}"
-    OUTPUT_VARIABLE GIT_DESC
+    OUTPUT_VARIABLE GIT_HASH
     OUTPUT_STRIP_TRAILING_WHITESPACE
     ERROR_QUIET
     RESULT_VARIABLE _result
 )
 
-# Fall back to tag + commit distance
-if(NOT _result EQUAL 0)
+if(_result EQUAL 0 AND GIT_HASH)
+    # Check if working directory is dirty
     execute_process(
-        COMMAND git describe --tags --dirty
+        COMMAND git diff-index --quiet HEAD --
         WORKING_DIRECTORY "${SOURCE_DIR}"
-        OUTPUT_VARIABLE GIT_DESC
+        RESULT_VARIABLE _dirty
+    )
+
+    # Check if HEAD is exactly on a tag matching our version
+    execute_process(
+        COMMAND git describe --tags --exact-match HEAD
+        WORKING_DIRECTORY "${SOURCE_DIR}"
+        OUTPUT_VARIABLE GIT_TAG
         OUTPUT_STRIP_TRAILING_WHITESPACE
         ERROR_QUIET
-        RESULT_VARIABLE _result
+        RESULT_VARIABLE _tag_result
     )
-    if(NOT _result EQUAL 0)
-        set(GIT_DESC "")
+
+    set(_on_release_tag FALSE)
+    if(_tag_result EQUAL 0 AND GIT_TAG STREQUAL "${BASE_VERSION}")
+        set(_on_release_tag TRUE)
+    endif()
+
+    # Only add git suffix for non-release builds (not on exact version tag, or dirty)
+    if(NOT _on_release_tag OR NOT _dirty EQUAL 0)
+        set(GIT_SUFFIX "-g${GIT_HASH}")
+        if(NOT _dirty EQUAL 0)
+            set(GIT_SUFFIX "${GIT_SUFFIX}-dirty")
+        endif()
     endif()
 endif()
 
+set(FULL_VERSION "${BASE_VERSION}${GIT_SUFFIX}")
+
 # Get commit timestamp
 execute_process(
     COMMAND git log -n 1 --format=%ci
@@ -46,11 +85,7 @@ execute_process(
 )
 
 # Build new content
-if(GIT_DESC)
-    set(NEW_LINE "#define BUILD_DESC \"${GIT_DESC}\"")
-else()
-    set(NEW_LINE "// No build information available")
-endif()
+set(NEW_LINE "#define BUILD_DESC \"${FULL_VERSION}\"")
 
 # Only write if changed
 if(NOT "${OLD_LINE}" STREQUAL "${NEW_LINE}")

src/bootstrap.cpp

@@ -3,7 +3,6 @@
 
 #include "bootstrap.h"
 
-#include <boost/asio.hpp>
 #include <boost/filesystem.hpp>
 #include <boost/filesystem/fstream.hpp>
 #include <boost/algorithm/string.hpp>
@@ -12,6 +11,8 @@
 
 #include "version.h"
 #include "uint256.h"
+#include "netbase.h"
+#include "net.h"
 
 #include <fstream>
 #include <sstream>
@@ -19,12 +20,18 @@
 #include <cstring>
 #include <cstdlib>
 
+#ifdef WIN32
+#include <winsock2.h>
+#else
+#include <sys/socket.h>
+#include <unistd.h>
+#endif
+
 // Forward declarations to avoid pulling in heavy consensus headers
 extern bool fTestNet;
 namespace Checkpoints { bool IsKnownCheckpoint(int nHeight, const uint256& hash); }
 
 namespace fs = boost::filesystem;
-using boost::asio::ip::tcp;
 
 namespace Bootstrap {
 
@@ -33,26 +40,48 @@ bool NeedsBootstrap(const fs::path& dataDir)
     return !fs::exists(dataDir / "blk0001.dat");
 }
 
+// Send all bytes on a raw socket
+static bool SendAll(SOCKET sock, const char* data, size_t len)
+{
+    while (len > 0) {
+        int n = send(sock, data, (int)std::min(len, (size_t)65536), MSG_NOSIGNAL);
+        if (n <= 0) return false;
+        data += n;
+        len -= n;
+    }
+    return true;
+}
+
+// Read until `delim` found in received data. Returns data including delimiter.
+static bool RecvUntil(SOCKET sock, std::string& out, const std::string& delim)
+{
+    out.clear();
+    char c;
+    while (true) {
+        int n = recv(sock, &c, 1, 0);
+        if (n <= 0) return false;
+        out += c;
+        if (out.size() >= delim.size() &&
+            out.compare(out.size() - delim.size(), delim.size(), delim) == 0)
+            return true;
+        if (out.size() > 64 * 1024) return false; // header too large
+    }
+}
+
 bool DownloadFile(const std::string& host, const std::string& urlPath,
                   const fs::path& destPath,
                   ProgressCallback progressFn,
                   std::string& strError)
 {
     try {
-        boost::asio::io_context io_context;
-        tcp::resolver resolver(io_context);
-
-        boost::system::error_code resolve_ec;
-        tcp::resolver::results_type endpoints =
-            resolver.resolve(host, std::to_string(PORT), resolve_ec);
-        if (resolve_ec) {
-            strError = "Cannot resolve host: " + host;
+        // Connect through Tor SOCKS proxy (ConnectSocketByName respects SetProxy)
+        SOCKET hSocket = INVALID_SOCKET;
+        CService addr;
+        if (!ConnectSocketByName(addr, hSocket, host.c_str(), PORT, 30)) {
+            strError = "Cannot connect to " + host + " (check Tor proxy)";
             return false;
         }
 
-        tcp::socket socket(io_context);
-        boost::asio::connect(socket, endpoints);
-
         // Send HTTP GET request
         std::string request =
             "GET " + urlPath + " HTTP/1.1\r\n"
@@ -60,85 +89,81 @@ bool DownloadFile(const std::string& host, const std::string& urlPath,
             "Connection: close\r\n"
             "User-Agent: Triangles\r\n"
             "\r\n";
-        boost::asio::write(socket, boost::asio::buffer(request));
+
+        if (!SendAll(hSocket, request.data(), request.size())) {
+            closesocket(hSocket);
+            strError = "Failed to send request to " + host;
+            return false;
+        }
 
         // Read response headers
-        boost::asio::streambuf response_buf;
-        boost::asio::read_until(socket, response_buf, "\r\n\r\n");
+        std::string headerData;
+        if (!RecvUntil(hSocket, headerData, "\r\n\r\n")) {
+            closesocket(hSocket);
+            strError = "Failed to read HTTP headers from " + host;
+            return false;
+        }
 
-        std::istream response_stream(&response_buf);
-
-        // Parse status line
-        std::string http_version;
+        // Parse status code from "HTTP/1.x NNN ..."
         unsigned int status_code = 0;
-        response_stream >> http_version >> status_code;
-        std::string status_message;
-        std::getline(response_stream, status_message);
+        size_t sp = headerData.find(' ');
+        if (sp != std::string::npos)
+            status_code = atoi(headerData.c_str() + sp + 1);
 
         if (status_code != 200) {
+            closesocket(hSocket);
             strError = "HTTP error " + std::to_string(status_code) + " for " + urlPath;
             return false;
         }
 
-        // Parse headers for Content-Length
+        // Parse Content-Length
         int64_t content_length = 0;
-        std::string header_line;
-        while (std::getline(response_stream, header_line) && header_line != "\r") {
-            std::string lower_header = header_line;
-            std::transform(lower_header.begin(), lower_header.end(),
-                           lower_header.begin(), ::tolower);
-            if (lower_header.find("content-length:") == 0) {
-                content_length = std::stoll(header_line.substr(header_line.find(':') + 1));
-            }
+        std::string lowerHeaders = headerData;
+        std::transform(lowerHeaders.begin(), lowerHeaders.end(),
+                       lowerHeaders.begin(), ::tolower);
+        size_t clPos = lowerHeaders.find("content-length:");
+        if (clPos != std::string::npos) {
+            size_t valStart = clPos + 15;
+            size_t lineEnd = lowerHeaders.find("\r\n", valStart);
+            if (lineEnd != std::string::npos)
+                content_length = std::stoll(headerData.substr(valStart, lineEnd - valStart));
         }
 
         // Open output file
         FILE* file = fopen(destPath.string().c_str(), "wb");
         if (!file) {
+            closesocket(hSocket);
             strError = "Cannot create file: " + destPath.string();
             return false;
         }
 
+        // Read body in chunks
         int64_t bytes_written = 0;
-
-        // Write any data remaining in the header buffer (body starts here)
-        if (response_buf.size() > 0) {
-            std::istreambuf_iterator<char> eos;
-            std::string remaining(std::istreambuf_iterator<char>(response_stream), eos);
-            if (!remaining.empty()) {
-                fwrite(remaining.data(), 1, remaining.size(), file);
-                bytes_written += remaining.size();
-            }
-        }
-
-        // Read remaining body in chunks
-        std::vector<char> chunk(65536); // 64 KB
-        boost::system::error_code ec;
         int64_t last_progress = 0;
+        char chunk[65536];
 
         while (true) {
-            size_t n = socket.read_some(boost::asio::buffer(chunk), ec);
-            if (n > 0) {
-                fwrite(chunk.data(), 1, n, file);
-                bytes_written += n;
-
-                // Report progress every 256 KB
-                if (progressFn && (bytes_written - last_progress >= 262144)) {
-                    last_progress = bytes_written;
-                    progressFn(bytes_written, content_length);
-                }
-            }
-            if (ec == boost::asio::error::eof)
-                break;
-            if (ec) {
+            int n = recv(hSocket, chunk, sizeof(chunk), 0);
+            if (n < 0) {
                 fclose(file);
+                closesocket(hSocket);
                 fs::remove(destPath);
-                strError = "Network error: " + ec.message();
+                strError = "Network error during download";
                 return false;
             }
+            if (n == 0) break; // EOF
+
+            fwrite(chunk, 1, n, file);
+            bytes_written += n;
+
+            if (progressFn && (bytes_written - last_progress >= 262144)) {
+                last_progress = bytes_written;
+                progressFn(bytes_written, content_length);
+            }
         }
 
         fclose(file);
+        closesocket(hSocket);
 
         // Verify download size if Content-Length was provided
         if (content_length > 0 && bytes_written != content_length) {

src/bootstrap.h

@@ -13,7 +13,6 @@ namespace Bootstrap {
 
     // Bootstrap server configuration
     static const char* DEFAULT_HOST = "bootstrap.cryptographic-triangles.org";
-    static const char* FALLBACK_HOST = "194.233.88.206";
     static const char* BASE_PATH = "/";
     static const int PORT = 80;
 

src/clientversion.h

@@ -7,8 +7,8 @@
 
 // These need to be macros, as version.cpp's and triangles-qt.rc's voodoo requires it
 #define CLIENT_VERSION_MAJOR       5
-#define CLIENT_VERSION_MINOR       7
-#define CLIENT_VERSION_REVISION    6
+#define CLIENT_VERSION_MINOR       8
+#define CLIENT_VERSION_REVISION    0
 #define CLIENT_VERSION_BUILD       0
 
 // Converts the parameter X to a string after macro replacement on X has been performed.

src/init.cpp

@@ -921,11 +921,6 @@ bool AppInit2()
         };
 
         bool success = Bootstrap::DownloadBootstrap(host, dataPath, progressFn, strError);
-        if (!success) {
-            host = Bootstrap::FALLBACK_HOST;
-            printf("\nBootstrap: primary host failed, trying fallback %s...\n", host.c_str());
-            success = Bootstrap::DownloadBootstrap(host, dataPath, progressFn, strError);
-        }
 
         if (!success) {
             printf("\nBootstrap: failed: %s\n", strError.c_str());
@@ -1223,7 +1218,10 @@ bool AppInit2()
             fUseUPnP = false;
             #endif
         } else {
-            return InitError(_("Tor failed to start. Triangles requires Tor to operate."));
+            std::string torError = CTorEmbedded::GetInstance()->GetStartupError();
+            if (torError.empty())
+                torError = "No detailed Tor startup error was recorded.";
+            return InitError(strprintf(_("Tor failed to start. Triangles requires Tor to operate.\n\nDetails: %s"), torError.c_str()));
         }
 
         // Initialize Tor V3 identity (Ed25519 keys, onion address)

src/main.cpp

@@ -13,6 +13,7 @@
 #include "kernel.h"
 #include "smessage.h"
 #include "tor/onion_v3.h"
+#include "tor/tor_embedded.h"
 #ifdef ENABLE_ZMQ
 #include "zmqpublishnotifier.h"
 #endif
@@ -246,7 +247,7 @@ static bool AddHeaderSyncNode(const CBlock& header, const uint256& hashHeader)
         return false;
     }
 
-    if (header.GetBlockTime() > FutureDrift(GetAdjustedTime()))
+    if (header.GetBlockTime() > GetTime() + 15 * 60)
     {
         printf("IBD-DIAG: header rejected (future time) hash=%s time=%u\n",
             hashHeader.ToString().substr(0,20).c_str(), header.nTime);
@@ -2033,6 +2034,31 @@ bool CBlock::ConnectBlock(CTxDB& txdb, CBlockIndex* pindex, bool fJustCheck)
         // Track pending UTXOs so later txs in the same block can find inputs.
         if (fAssumeValid)
         {
+            // Track money supply from input/output values
+            int64_t nTxValueOut = tx.GetValueOut();
+            nValueOut += nTxValueOut;
+
+            if (!tx.IsCoinBase())
+            {
+                int64_t nTxValueIn = 0;
+                for (const CTxIn& txin : tx.vin)
+                {
+                    // Check in-block pending UTXOs first, then UTXO database
+                    MapPrevTx::iterator it = mapPendingUtxos.find(txin.prevout);
+                    if (it != mapPendingUtxos.end())
+                        nTxValueIn += it->second.nValue;
+                    else
+                    {
+                        CUtxoEntry utxo;
+                        if (txdb.ReadUtxo(txin.prevout.hash, txin.prevout.n, utxo))
+                            nTxValueIn += utxo.nValue;
+                    }
+                }
+                nValueIn += nTxValueIn;
+                if (!tx.IsCoinStake())
+                    nFees += nTxValueIn - nTxValueOut;
+            }
+
             // Add outputs to pending UTXOs
             for (unsigned int k = 0; k < tx.vout.size(); k++)
             {
@@ -2340,6 +2366,12 @@ bool static Reorganize(CTxDB& txdb, CBlockIndex* pindexNew)
                 vResurrect.push_back(tx);
     }
 
+    // Remove disconnected PoS blocks from setStakeSeen so they don't
+    // block acceptance of valid blocks on the winning chain.
+    for (CBlockIndex* pindex : vDisconnect)
+        if (pindex->IsProofOfStake())
+            setStakeSeen.erase(make_pair(pindex->prevoutStake, pindex->nStakeTime));
+
     // Connect longer branch
     vector<CTransaction> vDelete;
     for (unsigned int i = 0; i < vConnect.size(); i++)
@@ -2764,15 +2796,25 @@ bool CBlock::AddToBlockIndex(unsigned int nFile, unsigned int nBlockPos, const u
 
     // New best — keep the batch open so SetBestChain can add ConnectBlock
     // writes to the same transaction, cutting the per-block commit count in half.
-    // v5.4: deterministic tiebreaker — when two chains have equal trust,
-    // all nodes agree on the one whose tip has the lower block hash.
-    // This prevents permanent forks from PoS blocks with identical difficulty.
+    //
+    // Chain selection rules:
+    //   1. Strictly greater trust always wins (normal case).
+    //   2. Equal trust: deterministic hash tiebreaker — lower tip hash wins.
+    //      This ensures all nodes converge on the same chain even when two
+    //      forks have identical cumulative difficulty (common in PoS).
+    //      Rate-limited to one equal-trust reorg per 10 minutes to prevent
+    //      oscillation from Tor-latency-induced competing announcements.
     bool fNewBest = false;
+    static int64_t nLastEqualTrustReorg = 0;
     if (pindexNew->nChainTrust > nBestChainTrust)
         fNewBest = true;
     else if (pindexNew->nChainTrust == nBestChainTrust && pindexBest &&
-             pindexNew->GetBlockHash() < pindexBest->GetBlockHash())
+             pindexNew->GetBlockHash() < pindexBest->GetBlockHash() &&
+             GetTime() - nLastEqualTrustReorg > 10 * 60)
+    {
         fNewBest = true;
+        nLastEqualTrustReorg = GetTime();
+    }
 
     if (fNewBest)
     {
@@ -2813,8 +2855,14 @@ bool CBlock::CheckBlock(bool fCheckPOW, bool fCheckMerkleRoot, bool fCheckSig) c
     if (fCheckPOW && IsProofOfWork() && !CheckProofOfWork(GetHash(), nBits))
         return DoS(50, error("CheckBlock() : proof of work failed"));
 
-    // Check timestamp
-    if (GetBlockTime() > FutureDrift(GetAdjustedTime()))
+    // Check timestamp: reject blocks obviously too far in the future.
+    // Use a generous 15-minute window from the raw system clock.
+    // GetAdjustedTime() is NOT used here because it incorporates peer-reported
+    // time offsets that differ between Tor nodes, causing nondeterministic
+    // block rejection — the primary cause of persistent chain splits.
+    // The deterministic timestamp checks in AcceptBlock (median-time-past,
+    // prev-block-time with 3-min drift) still enforce tight rules.
+    if (GetBlockTime() > GetTime() + 15 * 60)
         return error("CheckBlock() : block timestamp too far in the future");
 
     // First transaction must be coinbase, the rest must not be
@@ -3713,10 +3761,6 @@ bool FastImportBlockFile()
             }
             pindexNew->nStakeModifierChecksum = GetStakeModifierChecksum(pindexNew);
 
-            // Money supply tracking
-            pindexNew->nMint = 0;
-            pindexNew->nMoneySupply = (pindexNew->pprev ? pindexNew->pprev->nMoneySupply : 0);
-
             // PoS stake seen set
             if (pindexNew->IsProofOfStake())
                 setStakeSeen.insert(make_pair(pindexNew->prevoutStake, pindexNew->nStakeTime));
@@ -3729,10 +3773,10 @@ bool FastImportBlockFile()
             if (pindexNew->pprev)
                 pindexNew->pprev->pnext = pindexNew;
 
-            // Write block index to batch
-            txdb.WriteBlockIndex(CDiskBlockIndex(pindexNew));
-
-            // Build tx index + UTXO entries
+            // Build tx index + UTXO entries, tracking money supply
+            int64_t nBlockValueIn = 0;
+            int64_t nBlockValueOut = 0;
+            int64_t nFees = 0;
             unsigned int nTxPos = nBlockPos + ::GetSerializeSize(CBlock(), SER_DISK, CLIENT_VERSION)
                                 - (2 * GetSizeOfCompactSize(0)) + GetSizeOfCompactSize(block.vtx.size());
             for (unsigned int i = 0; i < block.vtx.size(); i++)
@@ -3743,11 +3787,23 @@ bool FastImportBlockFile()
                 txdb.UpdateTxIndex(hashTx, CTxIndex(posThisTx, tx.vout.size()));
                 nTxPos += ::GetSerializeSize(tx, SER_DISK, CLIENT_VERSION);
 
-                // UTXO entries
+                int64_t nTxValueOut = tx.GetValueOut();
+                nBlockValueOut += nTxValueOut;
+
+                // UTXO entries — read input values before erasing for money supply
                 if (!tx.IsCoinBase())
                 {
+                    int64_t nTxValueIn = 0;
                     for (const CTxIn& txin : tx.vin)
+                    {
+                        CUtxoEntry utxo;
+                        if (txdb.ReadUtxo(txin.prevout.hash, txin.prevout.n, utxo))
+                            nTxValueIn += utxo.nValue;
                         txdb.EraseUtxo(txin.prevout.hash, txin.prevout.n);
+                    }
+                    nBlockValueIn += nTxValueIn;
+                    if (!tx.IsCoinStake())
+                        nFees += nTxValueIn - nTxValueOut;
                 }
                 for (unsigned int k = 0; k < tx.vout.size(); k++)
                 {
@@ -3765,6 +3821,13 @@ bool FastImportBlockFile()
                 }
             }
 
+            // Money supply tracking — matches ConnectBlock formula
+            pindexNew->nMint = nBlockValueOut - nBlockValueIn + nFees;
+            pindexNew->nMoneySupply = (pindexNew->pprev ? pindexNew->pprev->nMoneySupply : 0) + nBlockValueOut - nBlockValueIn;
+
+            // Write block index to batch
+            txdb.WriteBlockIndex(CDiskBlockIndex(pindexNew));
+
             // Update best chain
             if (pindexNew->nChainTrust > nBestChainTrust)
             {
@@ -4063,6 +4126,17 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
 
         pfrom->fSuccessfullyConnected = true;
 
+        // If this is an onion peer and we have a pending resolve, request their wallet address
+        {
+            std::string peerAddr = pfrom->addr.ToStringIP();
+            if (peerAddr.find(".onion") != std::string::npos)
+            {
+                CTorV3Manager* torMgr = CTorV3Manager::GetInstance();
+                if (torMgr)
+                    torMgr->RequestWalletAddress(pfrom);
+            }
+        }
+
         printf("receive version message: version %d, blocks=%d, us=%s, them=%s, peer=%s\n", pfrom->nVersion, pfrom->nStartingHeight, addrMe.ToString().c_str(), addrFrom.ToString().c_str(), pfrom->addr.ToString().c_str());
 
         cPeerBlockCounts.input(pfrom->nStartingHeight);
@@ -4729,6 +4803,63 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
     }
 
 
+    else if (strCommand == "getwalletaddr")
+    {
+        // Peer is requesting our TRI receiving address for onion resolution.
+        // Respond with address + signature proving ownership.
+        if (!pwalletMain)
+            return true;
+
+        // Get our onion address to sign
+        CTorV3Manager* torMgr = CTorV3Manager::GetInstance();
+        std::string ourOnion = torMgr ? torMgr->GetWalletOnionAddress() : "";
+        if (ourOnion.empty())
+        {
+            CTorEmbedded* torEmbed = CTorEmbedded::GetInstance();
+            if (torEmbed)
+                ourOnion = torEmbed->GetOnionAddress();
+        }
+        if (ourOnion.empty())
+            return true; // Can't prove identity without onion address
+
+        // Get the default receiving address
+        CPubKey pubKey;
+        if (!pwalletMain->GetKeyFromPool(pubKey, true))
+            return true;
+
+        CTrianglesAddress addr(pubKey.GetID());
+        std::string strAddr = addr.ToString();
+
+        // Sign our onion address with the wallet key
+        CKeyID keyID;
+        addr.GetKeyID(keyID);
+        CKey key;
+        if (!pwalletMain->GetKey(keyID, key))
+            return true;
+
+        CDataStream ss(SER_GETHASH, 0);
+        ss << strMessageMagic;
+        ss << ourOnion;
+
+        std::vector<unsigned char> vchSig;
+        if (!key.SignCompact(Hash(ss.begin(), ss.end()), vchSig))
+            return true;
+
+        pfrom->PushMessage("walletaddr", strAddr, vchSig);
+    }
+
+    else if (strCommand == "walletaddr")
+    {
+        // Peer is responding with their TRI address + signature
+        std::string triAddr;
+        std::vector<unsigned char> vchSig;
+        vRecv >> triAddr >> vchSig;
+
+        CTorV3Manager* torMgr = CTorV3Manager::GetInstance();
+        if (torMgr)
+            torMgr->HandleWalletAddrResponse(pfrom, triAddr, vchSig);
+    }
+
     else if (strCommand == "seeder")
     {
         // Receive seeder node announcement

src/main.h

@@ -62,8 +62,12 @@ static const uint256 hashGenesisBlockTestNet ("0x7e7a6e4dd5fe895106fca912dfbacae
 inline int64_t GetMaxTimeDrift(int nHeight) { return (nHeight >= FORK_HEIGHT_V5_4) ? 3 * 60 : 10 * 60; }
 inline int64_t PastDrift(int64_t nTime, int nHeight)   { return nTime - GetMaxTimeDrift(nHeight); }
 inline int64_t FutureDrift(int64_t nTime, int nHeight)  { return nTime + GetMaxTimeDrift(nHeight); }
-inline int64_t PastDrift(int64_t nTime)   { return PastDrift(nTime, nBestHeight); }
-inline int64_t FutureDrift(int64_t nTime) { return FutureDrift(nTime, nBestHeight); }
+// Height-less overloads always use post-V5.4 rules (3-min drift).
+// All nodes are well past FORK_HEIGHT_V5_4; using the global nBestHeight
+// here previously caused nodes at different heights to disagree on block
+// validity during the fork transition — a consensus-splitting bug.
+inline int64_t PastDrift(int64_t nTime)   { return PastDrift(nTime, FORK_HEIGHT_V5_4); }
+inline int64_t FutureDrift(int64_t nTime) { return FutureDrift(nTime, FORK_HEIGHT_V5_4); }
 
 
 extern CScript COINBASE_FLAGS;

src/net.cpp

@@ -1403,7 +1403,32 @@ void ThreadOnionSeed(void* parg)
     // This is the primary discovery mechanism — seeds.cryptographic-triangles.org
     ThreadHTTPSeedFetch2(NULL);
 
-    printf("ThreadOnionSeed: seeding complete\n");
+    printf("ThreadOnionSeed: initial seeding complete\n");
+
+    // Periodic re-seeding: if the node becomes isolated (0 outbound peers),
+    // re-fetch the seed list. Check every 10 minutes, re-seed at most once
+    // per 30 minutes to avoid hammering the seed server.
+    int64_t nLastReseed = GetTime();
+    while (!fShutdown) {
+        for (int i = 0; i < 600 && !fShutdown; i++) // sleep 10 minutes
+            MilliSleep(1000);
+
+        if (fShutdown) break;
+
+        int nOutbound = 0;
+        {
+            LOCK(cs_vNodes);
+            for (CNode* pnode : vNodes)
+                if (!pnode->fInbound)
+                    nOutbound++;
+        }
+
+        if (nOutbound == 0 && GetTime() - nLastReseed > 30 * 60) {
+            printf("ThreadOnionSeed: no outbound peers, re-seeding...\n");
+            ThreadHTTPSeedFetch2(NULL);
+            nLastReseed = GetTime();
+        }
+    }
 }
 
 
@@ -1622,12 +1647,8 @@ void ThreadHTTPSeedFetch2(void* parg)
                 port = atoi(addrStr.substr(onionPos + 7).c_str());
                 addrStr = addrStr.substr(0, onionPos + 6); // keep ".onion"
             } else if (addrStr.find(".onion") == std::string::npos) {
-                // Clearnet address - find last colon for port
-                size_t colonPos = addrStr.rfind(':');
-                if (colonPos != std::string::npos) {
-                    port = atoi(addrStr.substr(colonPos + 1).c_str());
-                    addrStr = addrStr.substr(0, colonPos);
-                }
+                // Tor-native: skip non-.onion addresses
+                continue;
             }
 
             if (port <= 0 || port > 65535)

src/qt/forms/mainwindow.ui

@@ -1383,7 +1383,7 @@ QLabel {
 	color: #f26522;
 	}</string>
         </property>
-        <layout class="QHBoxLayout" name="horizontalLayout_6" stretch="0,1,0,1,0,0,0,0,0,0">
+        <layout class="QHBoxLayout" name="horizontalLayout_6" stretch="0,0,0,1,0,1,0,0,0,0,0,0,0">
          <property name="leftMargin">
           <number>0</number>
          </property>
@@ -1406,7 +1406,46 @@ QLabel {
            </property>
            <property name="sizeHint" stdset="0">
             <size>
-             <width>70</width>
+             <width>10</width>
+             <height>20</height>
+            </size>
+           </property>
+          </spacer>
+         </item>
+         <item>
+          <widget class="QLabel" name="label_onion">
+           <property name="font">
+            <font>
+             <pointsize>8</pointsize>
+             <weight>75</weight>
+             <bold>true</bold>
+            </font>
+           </property>
+           <property name="cursor">
+            <cursorShape>PointingHandCursor</cursorShape>
+           </property>
+           <property name="toolTip">
+            <string>Click to copy .onion address</string>
+           </property>
+           <property name="text">
+            <string notr="true"/>
+           </property>
+           <property name="textInteractionFlags">
+            <set>Qt::NoTextInteraction</set>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <spacer name="horizontalSpacer_onion">
+           <property name="orientation">
+            <enum>Qt::Horizontal</enum>
+           </property>
+           <property name="sizeType">
+            <enum>QSizePolicy::Fixed</enum>
+           </property>
+           <property name="sizeHint" stdset="0">
+            <size>
+             <width>10</width>
              <height>20</height>
             </size>
            </property>
@@ -1514,6 +1553,23 @@ QProgressBar::chunk {
            </property>
           </widget>
          </item>
+         <item>
+          <widget class="QLabel" name="label_v3">
+           <property name="font">
+            <font>
+             <pointsize>9</pointsize>
+             <weight>75</weight>
+             <bold>true</bold>
+            </font>
+           </property>
+           <property name="toolTip">
+            <string>Tor V3 hidden service status</string>
+           </property>
+           <property name="text">
+            <string notr="true">V3</string>
+           </property>
+          </widget>
+         </item>
          <item>
           <widget class="QLabel" name="label_connections">
            <property name="text">

src/qt/forms/optionsdialog.ui

@@ -1506,6 +1506,27 @@ QCheckBox::indicator:checked {
             </property>
            </widget>
           </item>
+          <item>
+           <widget class="QCheckBox" name="showOnionAddress">
+            <property name="toolTip">
+             <string>Whether to show this wallet's .onion address in the status bar.</string>
+            </property>
+            <property name="styleSheet">
+             <string notr="true">QCheckBox::indicator {
+	border:1px solid #f26522;
+	background-color: #000;
+	}
+
+QCheckBox::indicator:checked {
+	image:url(:/icons/checkbox);
+	padding: 1px;
+	}</string>
+            </property>
+            <property name="text">
+             <string>Show .onion address in status &amp;bar</string>
+            </property>
+           </widget>
+          </item>
           <item>
            <spacer name="verticalSpacer_Display">
             <property name="orientation">

src/qt/introdialog.cpp

@@ -292,12 +292,6 @@ bool IntroDialog::pickDataDirectory()
             };
 
             bool success = Bootstrap::DownloadBootstrap(host, dataDirPath, progressFn, strError);
-            if (!success) {
-                host = Bootstrap::FALLBACK_HOST;
-                progress.setValue(0);
-                success = Bootstrap::DownloadBootstrap(host, dataDirPath, progressFn, strError);
-            }
-
             if (!success) {
                 QMessageBox::warning(0, "Triangles",
                     QString("Could not download blockchain snapshot:\n%1\n\n"

src/qt/optionsdialog.cpp

@@ -206,6 +206,7 @@ void OptionsDialog::setMapper()
     mapper->addMapping(ui->unit, OptionsModel::DisplayUnit);
     mapper->addMapping(ui->displayAddresses, OptionsModel::DisplayAddresses);
     mapper->addMapping(ui->coinControlFeatures, OptionsModel::CoinControlFeatures);
+    mapper->addMapping(ui->showOnionAddress, OptionsModel::ShowOnionAddress);
 }
 
 void OptionsDialog::enableApplyButton()

src/qt/optionsmodel.cpp

@@ -51,6 +51,7 @@ void OptionsModel::Init()
     fMinimizeToTray = settings.value("fMinimizeToTray", false).toBool();
     fMinimizeOnClose = settings.value("fMinimizeOnClose", false).toBool();
     fCoinControlFeatures = settings.value("fCoinControlFeatures", false).toBool();
+    fShowOnionAddress = settings.value("fShowOnionAddress", true).toBool();
     nTransactionFee = settings.value("nTransactionFee").toLongLong();
     nReserveBalance = settings.value("nReserveBalance").toLongLong();
     language = settings.value("language", "").toString();
@@ -126,6 +127,8 @@ QVariant OptionsModel::data(const QModelIndex & index, int role) const
             return settings.value("language", "");
         case CoinControlFeatures:
             return QVariant(fCoinControlFeatures);
+        case ShowOnionAddress:
+            return QVariant(fShowOnionAddress);
         default:
             return QVariant();
         }
@@ -226,6 +229,12 @@ bool OptionsModel::setData(const QModelIndex & index, const QVariant & value, in
             emit coinControlFeaturesChanged(fCoinControlFeatures);
             }
             break;
+        case ShowOnionAddress: {
+            fShowOnionAddress = value.toBool();
+            settings.setValue("fShowOnionAddress", fShowOnionAddress);
+            emit showOnionAddressChanged(fShowOnionAddress);
+            }
+            break;
         default:
             break;
         }
@@ -269,3 +278,8 @@ bool OptionsModel::getDisplayAddresses()
 {
     return bDisplayAddresses;
 }
+
+bool OptionsModel::getShowOnionAddress()
+{
+    return fShowOnionAddress;
+}

src/qt/optionsmodel.h

@@ -32,6 +32,7 @@ public:
         DetachDatabases,   // bool
         Language,          // QString
         CoinControlFeatures, // bool
+        ShowOnionAddress,    // bool
         OptionIDRowCount,
     };
 
@@ -52,6 +53,7 @@ public:
     int getDisplayUnit();
     bool getDisplayAddresses();
     bool getCoinControlFeatures();
+    bool getShowOnionAddress();
     QString getLanguage() { return language; }
 
 private:
@@ -60,6 +62,7 @@ private:
     bool fMinimizeToTray;
     bool fMinimizeOnClose;
     bool fCoinControlFeatures;
+    bool fShowOnionAddress;
     QString language;
 
 signals:
@@ -67,6 +70,7 @@ signals:
     void transactionFeeChanged(qint64);
     void reserveBalanceChanged(qint64);
     void coinControlFeaturesChanged(bool);
+    void showOnionAddressChanged(bool);
 };
 
 #endif // OPTIONSMODEL_H

src/qt/overviewpage.cpp

@@ -11,6 +11,7 @@
 
 #include <QAbstractItemDelegate>
 #include <QPainter>
+#include <QTimer>
 
 #define DECORATION_SIZE 64
 #define NUM_ITEMS 5
@@ -88,6 +89,7 @@ public:
 OverviewPage::OverviewPage(QWidget *parent) :
     QWidget(parent),
     ui(new Ui::OverviewPage),
+    clientModel(0),
     currentBalance(-1),
     currentStake(0),
     currentUnconfirmedBalance(-1),
@@ -112,6 +114,7 @@ OverviewPage::OverviewPage(QWidget *parent) :
 
     // start with displaying the "out of sync" warnings
     showOutOfSyncWarning(true);
+
 }
 
 void OverviewPage::handleTransactionClicked(const QModelIndex &index)
@@ -125,6 +128,11 @@ OverviewPage::~OverviewPage()
     delete ui;
 }
 
+void OverviewPage::setClientModel(ClientModel *clientModel)
+{
+    this->clientModel = clientModel;
+}
+
 void OverviewPage::setBalance(qint64 balance, qint64 stake, qint64 unconfirmedBalance, qint64 immatureBalance)
 {
     if (!model || !model->getOptionsModel())
@@ -213,3 +221,4 @@ void OverviewPage::showOutOfSyncWarning(bool fShow)
     ui->labelWalletStatus->setVisible(fShow);
     ui->labelTransactionsStatus->setVisible(fShow);
 }
+

src/qt/sendcoinsdialog.cpp

@@ -15,9 +15,11 @@
 
 #include "coincontrol.h"
 #include "coincontroldialog.h"
+#include "tor/onion_v3.h"
 
 #include <QMessageBox>
 #include <QLocale>
+#include <QApplication>
 #include <QTextDocument>
 #include <QScrollBar>
 #include <QClipboard>
@@ -145,6 +147,37 @@ void SendCoinsDialog::on_sendButton_clicked()
         return;
     }
 
+    // Resolve any .onion addresses to TRI addresses
+    CTorV3Manager* torMgr = CTorV3Manager::GetInstance();
+    for(int i = 0; i < recipients.size(); ++i)
+    {
+        std::string addr = recipients[i].address.toStdString();
+        if (addr.size() == 62 && addr.substr(addr.size() - 6) == ".onion")
+        {
+            std::string triAddr;
+            if (torMgr && torMgr->LookupCachedOnionAddress(addr, triAddr))
+            {
+                // Found in cache — substitute
+                recipients[i].address = QString::fromStdString(triAddr);
+                if (recipients[i].label.isEmpty())
+                    recipients[i].label = QString::fromStdString(addr);
+            }
+            else
+            {
+                // Not cached — initiate async resolution and tell user to wait
+                if (torMgr)
+                    torMgr->ResolveOnionAddress(addr, triAddr);
+
+                QMessageBox::information(this, tr("Resolving .onion Address"),
+                    tr("Connecting to %1 to resolve their TRI address.\n\n"
+                       "Please wait a moment and try again.")
+                    .arg(recipients[i].address));
+                fNewRecipientAllowed = true;
+                return;
+            }
+        }
+    }
+
     // Format confirmation message
     QStringList formatted;
     foreach(const SendCoinsRecipient &rcp, recipients)

src/qt/sendcoinsentry.cpp

@@ -23,7 +23,7 @@ SendCoinsEntry::SendCoinsEntry(QWidget *parent) :
 #if QT_VERSION >= 0x040700
     /* Do not move this to the XML file, Qt before 4.7 will choke on it */
     ui->addAsLabel->setPlaceholderText(tr("Enter a label for this address to add it to your address book"));
-    ui->payTo->setPlaceholderText(tr("Enter a TRI address (e.g. TXc7mPCNFFpinDonuSH5PNVY9S8nBcvGQm)"));
+    ui->payTo->setPlaceholderText(tr("Enter a TRI address or .onion address"));
 	ui->narration->setPlaceholderText(tr("Enter a short note to send with payment. This feature will be enabled later."));
     ui->narration->setEnabled(false);
     ui->narration->setVisible(false);

src/qt/sendmessagesdialog.cpp

@@ -8,6 +8,7 @@
 #include "sendmessagesentry.h"
 #include "dialog_move_handler.h"
 #include "guiutil.h"
+#include "tor/onion_v3.h"
 
 #include <QMessageBox>
 #include <QLocale>
@@ -155,6 +156,35 @@ void SendMessagesDialog::on_sendButton_clicked()
     if(!valid || recipients.isEmpty())
         return;
 
+    // Resolve any .onion addresses to TRI addresses
+    CTorV3Manager* torMgr = CTorV3Manager::GetInstance();
+    for(int i = 0; i < recipients.size(); ++i)
+    {
+        std::string addr = recipients[i].address.toStdString();
+        if (addr.size() == 62 && addr.substr(addr.size() - 6) == ".onion")
+        {
+            std::string triAddr;
+            if (torMgr && torMgr->LookupCachedOnionAddress(addr, triAddr))
+            {
+                recipients[i].address = QString::fromStdString(triAddr);
+                if (recipients[i].label.isEmpty())
+                    recipients[i].label = QString::fromStdString(addr);
+            }
+            else
+            {
+                if (torMgr)
+                    torMgr->ResolveOnionAddress(addr, triAddr);
+
+                QMessageBox::information(this, tr("Resolving .onion Address"),
+                    tr("Connecting to %1 to resolve their TRI address.\n\n"
+                       "Please wait a moment and try again.")
+                    .arg(recipients[i].address));
+                fNewRecipientAllowed = true;
+                return;
+            }
+        }
+    }
+
     // Format confirmation message
     QStringList formatted;
     foreach(const SendMessagesRecipient &rcp, recipients)

src/qt/sendmessagesentry.cpp

@@ -25,7 +25,7 @@ SendMessagesEntry::SendMessagesEntry(QWidget *parent) :
 #if QT_VERSION >= 0x040700
     /* Do not move this to the XML file, Qt before 4.7 will choke on it */
     ui->addAsLabel->setPlaceholderText(tr("Enter a label for this address to add it to your address book"));
-    ui->sendTo->setPlaceholderText(tr("Enter a TRI address (e.g. TXc7mPCNFFpinDonuSH5PNVY9S8nBcvGQm)"));
+    ui->sendTo->setPlaceholderText(tr("Enter a TRI address or .onion address"));
     ui->publicKey->setPlaceholderText(tr("Enter the public key for the address above, it is not in the blockchain"));
     ui->messageText->setErrorText(tr("You cannot send a blank message!"));
 #endif

src/qt/trianglesaddressvalidator.cpp

@@ -50,11 +50,27 @@ QValidator::State TrianglesAddressValidator::validate(QString &input, int &pos)
 
     // Validation
     QValidator::State state = QValidator::Acceptable;
+
+    // Allow .onion addresses (base32 lowercase + digits 2-7 + period)
+    bool isOnion = input.endsWith(".onion");
+
     for(int idx=0; idx<input.size(); ++idx)
     {
         int ch = input.at(idx).unicode();
 
-        if(((ch >= '0' && ch<='9') ||
+        if (isOnion)
+        {
+            // V3 onion: base32 (a-z, 2-7) + ".onion" suffix
+            if ((ch >= 'a' && ch <= 'z') || (ch >= '2' && ch <= '7') || ch == '.')
+            {
+                // Valid onion character
+            }
+            else
+            {
+                state = QValidator::Invalid;
+            }
+        }
+        else if(((ch >= '0' && ch<='9') ||
            (ch >= 'a' && ch<='z') ||
            (ch >= 'A' && ch<='Z')) &&
            ch != 'l' && ch != 'I' && ch != '0' && ch != 'O')

src/qt/trianglesgui.cpp

@@ -40,6 +40,8 @@
 #include "util.h"
 //#include "message_box_dialog.h"
 #include "wallet.h"
+#include "tor/tor_embedded.h"
+#include "tor/onion_v3.h"
 
 #ifdef Q_OS_MAC
 #include "macdockiconhandler.h"
@@ -66,6 +68,8 @@
 #include <QFileDialog>
 #include <QStandardPaths>
 #include <QTimer>
+#include <QClipboard>
+#include <QToolTip>
 #include <QDragEnterEvent>
 #if QT_VERSION < 0x050000
 #include <QUrl>
@@ -336,6 +340,21 @@ TrianglesGUI::TrianglesGUI(bool fIsTestnet, QWidget *parent):
         updateStakingIcon();
     }
 
+    // Onion address in status bar (hidden until populated, click to copy)
+    labelOnionAddress = ui->label_onion;
+    labelOnionAddress->setVisible(false);
+    labelOnionAddress->setCursor(Qt::PointingHandCursor);
+    labelOnionAddress->installEventFilter(this);
+
+    // V3 indicator next to staking icon (hidden until onion is active)
+    labelV3Icon = ui->label_v3;
+    labelV3Icon->setVisible(false);
+
+    QTimer *timerOnion = new QTimer(this);
+    connect(timerOnion, SIGNAL(timeout()), this, SLOT(updateOnionAddress()));
+    timerOnion->start(5000);
+    updateOnionAddress();
+
     QTimer *timerShutdown = new QTimer(this);
     connect(timerShutdown, SIGNAL(timeout()), this, SLOT(detectShutdown()));
     timerShutdown->start(200);
@@ -569,6 +588,9 @@ void TrianglesGUI::setClientModel(ClientModel *clientModel)
             rpcConsole->setClientModel(clientModel);
         addressBookPage->setOptionsModel(clientModel->getOptionsModel());
         receiveCoinsPage->setOptionsModel(clientModel->getOptionsModel());
+
+        connect(clientModel->getOptionsModel(), SIGNAL(showOnionAddressChanged(bool)), this, SLOT(updateOnionAddress()));
+        updateOnionAddress();
     }
 }
 
@@ -1289,6 +1311,16 @@ bool TrianglesGUI::eventFilter(QObject *object, QEvent *event)
     }
     if (object == ui->pushButton_Overview && event->type() == QEvent::MouseButtonPress)
         gotoOverviewPage();
+    if (object == labelOnionAddress && event->type() == QEvent::MouseButtonPress)
+    {
+        QString addr = labelOnionAddress->text();
+        if (!addr.isEmpty())
+        {
+            QApplication::clipboard()->setText(addr);
+            QToolTip::showText(QCursor::pos(), tr("Copied!"), labelOnionAddress);
+        }
+        return true;
+    }
     return QMainWindow::eventFilter(object, event);
 }
 
@@ -1715,6 +1747,42 @@ void TrianglesGUI::detectShutdown()
         QMetaObject::invokeMethod(QCoreApplication::instance(), "quit", Qt::QueuedConnection);
 }
 
+void TrianglesGUI::updateOnionAddress()
+{
+    std::string onionAddress = CTorV3Manager::GetInstance()->GetWalletOnionAddress();
+    if (onionAddress.empty())
+        onionAddress = CTorEmbedded::GetInstance()->GetOnionAddress();
+
+    bool hasOnion = !onionAddress.empty();
+
+    // V3 indicator — always visible when onion is active, independent of the address toggle
+    if (hasOnion) {
+        labelV3Icon->setStyleSheet("color: #00ff00; font-weight: bold;");
+        labelV3Icon->setToolTip(tr("V3 Tor enabled"));
+        labelV3Icon->setVisible(true);
+    } else {
+        labelV3Icon->setStyleSheet("color: #555555; font-weight: bold;");
+        labelV3Icon->setToolTip(tr("V3 Tor not active"));
+        labelV3Icon->setVisible(true);
+    }
+
+    // Onion address text — respects user preference
+    if (clientModel && clientModel->getOptionsModel() &&
+        !clientModel->getOptionsModel()->getShowOnionAddress()) {
+        labelOnionAddress->setVisible(false);
+        return;
+    }
+
+    if (!hasOnion) {
+        labelOnionAddress->setVisible(false);
+        return;
+    }
+
+    labelOnionAddress->setText(QString::fromStdString(onionAddress));
+    labelOnionAddress->setToolTip(tr("This wallet's Tor .onion address. Selectable — right-click to copy."));
+    labelOnionAddress->setVisible(true);
+}
+
 
 void TrianglesGUI::on_bHelp_clicked()
 {    

src/qt/trianglesgui.h

@@ -109,6 +109,8 @@ private:
     QLabel *labelStakingIcon;
     QLabel *labelConnectionsIcon;
     QLabel *labelBlocksIcon;
+    QLabel *labelOnionAddress;
+    QLabel *labelV3Icon;
     QLabel *progressBarLabel;
     QProgressBar *progressBar;
 
@@ -174,6 +176,7 @@ public slots:
     void setEncryptionStatus(int status);
     void setWalletTransactionSyncState(bool syncing);
     void setWalletTransactionSyncProgress(bool syncing, int pendingNotifications);
+    void updateOnionAddress();
 
     /** Notify the user of an error in the network or transaction handling code. */
     void error(const QString &title, const QString &message, bool modal);

src/qt/walletmodel.cpp

@@ -9,6 +9,7 @@
 #include "walletdb.h" // for BackupWallet
 #include "base58.h"
 #include "main.h"
+#include "tor/onion_v3.h"
 
 #include <QSet>
 #include <QTimer>
@@ -281,8 +282,11 @@ void WalletModel::updateAddressBook(const QString &address, const QString &label
 bool WalletModel::validateAddress(const QString &address)
 {
     std::string sAddr = address.toStdString();
-    
-    
+
+    // Accept V3 .onion addresses (56-char base32 + ".onion" = 62 chars)
+    if (sAddr.size() == 62 && sAddr.substr(sAddr.size() - 6) == ".onion")
+        return CTorV3Service::ValidateOnionAddress(sAddr);
+
     CTrianglesAddress addressParsed(sAddr);
     return addressParsed.IsValid();
 }
@@ -385,7 +389,7 @@ WalletModel::SendCoinsReturn WalletModel::sendCoins(const QList<SendCoinsRecipie
         for (it = mapStealthNarr.begin(); it != mapStealthNarr.end(); ++it)
         {
             char key[64];
-            if (snprintf(key, sizeof(key), "n_%u") < 1)
+            if (snprintf(key, sizeof(key), "n_%u", it->first) < 1)
             {
                 printf("CreateStealthTransaction(): Error creating narration key.");
                 continue;

src/rpcwallet.cpp

@@ -1944,7 +1944,8 @@ Value clearwallettransactions(const Array& params, bool fHelp)
             if (datKey.get_data() == NULL || datValue.get_data() == NULL
                 || ret != 0)
             {
-                snprintf(cbuf, sizeof(cbuf), "wallet DB error %d, %s", ret, db_strerror(ret));
+                const char* dbErr = db_strerror(ret);
+                snprintf(cbuf, sizeof(cbuf), "wallet DB error %d, %s", ret, dbErr ? dbErr : "unknown");
                 throw runtime_error(cbuf);
             };
             

src/tor/onion_v3.cpp

@@ -2286,6 +2286,160 @@ void ThreadTorMaintenance(void* parg)
     printf("Tor maintenance thread exited\n");
 }
 
+// ============================================================================
+// Onion-to-TRI address resolution
+// ============================================================================
+
+void CTorV3Manager::CacheOnionAddress(const std::string& onion, const std::string& triAddr)
+{
+    std::lock_guard<std::mutex> lock(cs_onionAddr);
+    mapOnionToAddress[onion] = {triAddr, GetTime()};
+    printf("Cached onion→TRI mapping: %s → %s\n", onion.c_str(), triAddr.c_str());
+}
+
+bool CTorV3Manager::LookupCachedOnionAddress(const std::string& onion, std::string& triAddr) const
+{
+    std::lock_guard<std::mutex> lock(cs_onionAddr);
+    auto it = mapOnionToAddress.find(onion);
+    if (it != mapOnionToAddress.end())
+    {
+        // Cache entries expire after 24 hours
+        if (GetTime() - it->second.timestamp < 86400)
+        {
+            triAddr = it->second.triAddress;
+            return true;
+        }
+    }
+    return false;
+}
+
+void CTorV3Manager::RequestWalletAddress(CNode* pnode)
+{
+    if (pnode)
+        pnode->PushMessage("getwalletaddr");
+}
+
+void CTorV3Manager::HandleWalletAddrResponse(CNode* pfrom, const std::string& triAddr,
+                                              const std::vector<unsigned char>& vchSig)
+{
+    // Extract the peer's onion address from the connection
+    std::string peerOnion = pfrom->addr.ToStringIP();
+    if (peerOnion.find(".onion") == std::string::npos)
+    {
+        printf("walletaddr: peer %s is not an onion address, ignoring\n", peerOnion.c_str());
+        return;
+    }
+
+    // Verify the signature: peer signed their onion address with the TRI key
+    extern const std::string strMessageMagic;
+    CDataStream ss(SER_GETHASH, 0);
+    ss << strMessageMagic;
+    ss << peerOnion;
+
+    CKey key;
+    if (!key.SetCompactSignature(Hash(ss.begin(), ss.end()), vchSig))
+    {
+        printf("walletaddr: invalid signature from %s\n", peerOnion.c_str());
+        return;
+    }
+
+    // Verify the recovered public key matches the claimed TRI address
+    CTrianglesAddress claimedAddr(triAddr);
+    if (!claimedAddr.IsValid())
+    {
+        printf("walletaddr: invalid TRI address '%s' from %s\n", triAddr.c_str(), peerOnion.c_str());
+        return;
+    }
+
+    CKeyID claimedKeyID;
+    if (!claimedAddr.GetKeyID(claimedKeyID))
+    {
+        printf("walletaddr: cannot extract KeyID from %s\n", triAddr.c_str());
+        return;
+    }
+
+    if (key.GetPubKey().GetID() != claimedKeyID)
+    {
+        printf("walletaddr: signature does not match claimed address %s from %s\n",
+               triAddr.c_str(), peerOnion.c_str());
+        return;
+    }
+
+    // Signature valid — cache the mapping
+    CacheOnionAddress(peerOnion, triAddr);
+
+    // Fire any pending resolve callbacks
+    std::function<void(bool, const std::string&)> callback;
+    {
+        std::lock_guard<std::mutex> lock(cs_onionAddr);
+        auto it = mapPendingResolves.find(peerOnion);
+        if (it != mapPendingResolves.end())
+        {
+            callback = it->second;
+            mapPendingResolves.erase(it);
+        }
+    }
+    if (callback)
+        callback(true, triAddr);
+}
+
+bool CTorV3Manager::ResolveOnionAddress(const std::string& onion, std::string& triAddr,
+                                         std::function<void(bool, const std::string&)> callback)
+{
+    // Check cache first
+    if (LookupCachedOnionAddress(onion, triAddr))
+        return true;
+
+    // Find or connect to the peer
+    std::string onionHost = onion;
+    // Strip trailing .onion:port if present
+    size_t colonPos = onionHost.find(':');
+    if (colonPos != std::string::npos)
+        onionHost = onionHost.substr(0, colonPos);
+
+    // Search connected peers for this onion address
+    CNode* pnode = nullptr;
+    {
+        LOCK(cs_vNodes);
+        for (CNode* pn : vNodes)
+        {
+            if (pn->addr.ToStringIP().find(onionHost) != std::string::npos)
+            {
+                pnode = pn;
+                break;
+            }
+        }
+    }
+
+    if (pnode)
+    {
+        // Already connected — request their address
+        if (callback)
+            RegisterResolveCallback(onionHost, callback);
+        RequestWalletAddress(pnode);
+        return false; // async — callback will fire when response arrives
+    }
+
+    // Not connected — try to connect
+    if (callback)
+        RegisterResolveCallback(onionHost, callback);
+
+    int port = GetDefaultPort();
+    ConnectToOnionPeer(onionHost, port);
+
+    // After connection, the version handshake will complete, then we
+    // send the request. We need a short delay to let the connection establish.
+    // The caller should use the callback for async notification.
+    return false;
+}
+
+void CTorV3Manager::RegisterResolveCallback(const std::string& onion,
+                                             std::function<void(bool, const std::string&)> callback)
+{
+    std::lock_guard<std::mutex> lock(cs_onionAddr);
+    mapPendingResolves[onion] = callback;
+}
+
 // Global functions
 bool InitTorV3()
 {

src/tor/onion_v3.h

@@ -8,6 +8,8 @@
 #include <string>
 #include <vector>
 #include <map>
+#include <mutex>
+#include <functional>
 
 // Forward declarations
 class CNode;
@@ -137,6 +139,25 @@ public:
     void UpdateSeederReputation(const std::string& seederAddress, bool success);
     void RequestSeederListFromPeer(const std::string& peerAddress);
     void ScheduleSeederReannouncement();
+
+    // Onion-to-TRI address resolution
+    struct OnionAddrEntry {
+        std::string triAddress;
+        int64_t timestamp;
+    };
+    std::map<std::string, OnionAddrEntry> mapOnionToAddress;
+    mutable std::mutex cs_onionAddr;
+    std::map<std::string, std::function<void(bool, const std::string&)>> mapPendingResolves;
+
+    void CacheOnionAddress(const std::string& onion, const std::string& triAddr);
+    bool LookupCachedOnionAddress(const std::string& onion, std::string& triAddr) const;
+    void RequestWalletAddress(CNode* pnode);
+    void HandleWalletAddrResponse(CNode* pfrom, const std::string& triAddr,
+                                   const std::vector<unsigned char>& vchSig);
+    bool ResolveOnionAddress(const std::string& onion, std::string& triAddr,
+                             std::function<void(bool, const std::string&)> callback = nullptr);
+    void RegisterResolveCallback(const std::string& onion,
+                                 std::function<void(bool, const std::string&)> callback);
 };
 
 // Tor V3 configuration

src/tor/tor_embedded.cpp

@@ -114,6 +114,7 @@ bool CTorEmbedded::Start(int socks, int hsPort, bool enableHiddenService)
 {
     if (running.load()) return true;
 
+    lastError.clear();
     socksPort = socks;
     hiddenServiceEnabled = enableHiddenService;
     hiddenServicePort = hiddenServiceEnabled ? hsPort : 0;
@@ -202,11 +203,13 @@ bool CTorEmbedded::Start(int socks, int hsPort, bool enableHiddenService)
         }
 
         if (!running.load()) {
+            lastError = "Embedded Tor thread exited during bootstrap before the SOCKS proxy became available.";
             printf("ERROR: Embedded Tor thread exited during bootstrap\n");
             return false;
         }
     }
 
+    lastError = strprintf("Embedded Tor did not expose SOCKS port %d within 60 seconds.", socksPort);
     printf("WARNING: Embedded Tor started but SOCKS not ready after 60s (still bootstrapping)\n");
     return true;
 }
@@ -241,8 +244,12 @@ bool CTorEmbedded::Start(int socks, int hsPort, bool enableHiddenService)
     hiddenServiceEnabled = enableHiddenService;
     hiddenServicePort = hiddenServiceEnabled ? hsPort : 0;
     onionHostname.clear();
+    lastError.clear();
     torDataDir = (::GetDataDir() / "tor_data").string();
     running.store(StartTorProcess(torDataDir, socksPort, hiddenServicePort, hiddenServiceEnabled));
+    if (!running.load()) {
+        lastError = CTorProcess::GetInstance()->GetStartupError();
+    }
     return running.load();
 }
 

src/tor/tor_embedded.h

@@ -19,6 +19,7 @@ private:
     bool hiddenServiceEnabled;
     std::string torDataDir;
     std::string onionHostname;
+    std::string lastError;
 
 public:
     static CTorEmbedded* GetInstance();
@@ -43,6 +44,8 @@ public:
 
     // Get our .onion address (available after bootstrap)
     std::string GetOnionAddress() const { return onionHostname; }
+    std::string GetStartupError() const { return lastError; }
+    void SetStartupError(const std::string& value) { lastError = value; }
 
     // Get the hidden service port
     int GetHiddenServicePort() const { return hiddenServicePort; }

src/tor/tor_process.cpp

@@ -19,11 +19,13 @@
 #include <boost/filesystem.hpp>
 #include <fstream>
 #include <cstdio>
+#include <sstream>
 
 #ifdef WIN32
 #include <winsock2.h>
 #include <ws2tcpip.h>
 #include <tlhelp32.h>
+#include <windows.h>
 #else
 #include <sys/types.h>
 #include <sys/wait.h>
@@ -35,6 +37,28 @@
 
 namespace fs = boost::filesystem;
 
+static std::string ReadTailLines(const fs::path& filePath, size_t maxLines)
+{
+    std::ifstream in(filePath.string().c_str());
+    if (!in.is_open()) return "";
+
+    std::vector<std::string> lines;
+    std::string line;
+    while (std::getline(in, line)) {
+        lines.push_back(line);
+        if (lines.size() > maxLines) {
+            lines.erase(lines.begin());
+        }
+    }
+
+    std::ostringstream out;
+    for (size_t i = 0; i < lines.size(); ++i) {
+        if (i) out << " | ";
+        out << lines[i];
+    }
+    return out.str();
+}
+
 static CTorProcess* torProcessInstance = nullptr;
 
 CTorProcess* CTorProcess::GetInstance()
@@ -199,6 +223,10 @@ bool CTorProcess::WriteTorrc()
     fs::create_directories(torStateDir);
     torrc << "DataDirectory " << torStateDir.string() << "\n";
 
+    // Persistent Tor log for post-mortem debugging on user machines.
+    fs::path torLogPath = dataPath / "tor.log";
+    torrc << "Log notice file " << torLogPath.string() << "\n";
+
     if (hiddenServiceEnabled) {
         // V3 hidden service so this node is reachable via .onion
         torrc << "HiddenServiceDir " << hsDir.string() << "\n";
@@ -232,6 +260,7 @@ bool CTorProcess::WriteTorrc()
 
 bool CTorProcess::Start(const std::string& dataDir, int socks, int hsPort, bool enableHiddenService)
 {
+    lastError.clear();
     socksPort = socks;
     hiddenServiceEnabled = enableHiddenService;
     hiddenServicePort = hiddenServiceEnabled ? hsPort : 0;
@@ -240,6 +269,7 @@ bool CTorProcess::Start(const std::string& dataDir, int socks, int hsPort, bool
     // Check if something is already listening on our SOCKS port
     if (IsPortInUse(socksPort)) {
         printf("Tor SOCKS port %d already in use - assuming Tor is running\n", socksPort);
+        lastError = strprintf("SOCKS port %d is already in use; assuming an existing Tor instance is serving it.", socksPort);
         running = true;
         return true;
     }
@@ -247,6 +277,7 @@ bool CTorProcess::Start(const std::string& dataDir, int socks, int hsPort, bool
     // Find Tor binary
     torBinaryPath = FindTorBinary();
     if (torBinaryPath.empty()) {
+        lastError = "Tor binary was not found in the bundled install or standard search paths.";
         printf("WARNING: Tor binary not found. Install Tor for .onion connectivity.\n");
         printf("  Windows: Download from https://www.torproject.org/download/tor/\n");
         printf("  Linux:   apt install tor  or  yum install tor\n");
@@ -256,6 +287,7 @@ bool CTorProcess::Start(const std::string& dataDir, int socks, int hsPort, bool
 
     // Write configuration
     if (!WriteTorrc()) {
+        lastError = strprintf("Failed to write Tor configuration to %s", torrcPath.c_str());
         printf("ERROR: Failed to write Tor configuration\n");
         return false;
     }
@@ -282,7 +314,9 @@ bool CTorProcess::Start(const std::string& dataDir, int socks, int hsPort, bool
             NULL, NULL,
             &si, &pi))
     {
-        printf("ERROR: Failed to start Tor process (error %lu)\n", GetLastError());
+        DWORD err = ::GetLastError();
+        lastError = strprintf("CreateProcess failed for Tor binary '%s' with Windows error %lu", torBinaryPath.c_str(), err);
+        printf("ERROR: Failed to start Tor process (error %lu)\n", err);
         return false;
     }
 
@@ -326,17 +360,6 @@ bool CTorProcess::Start(const std::string& dataDir, int socks, int hsPort, bool
         if (IsPortInUse(socksPort)) {
             printf("Tor SOCKS proxy ready on port %d (took %ds)\n", socksPort, i + 1);
 
-            // Defensive check: Tor must not directly occupy the node's hidden-service
-            // virtual port. If it does, node startup will fail with a bind collision.
-            if (hiddenServiceEnabled && IsPortInUse(hiddenServicePort)) {
-                printf("ERROR: Tor startup collision: hidden service port %d appears busy before node bind.\n",
-                       hiddenServicePort);
-                printf("       Refusing to treat Tor as healthy because this would block the node listener.\n");
-                Stop();
-                running = false;
-                return false;
-            }
-
             // Read and display the hidden service hostname if available
             if (hiddenServiceEnabled) {
                 fs::path hsHostname = fs::path(torDataDir) / "hidden_service" / "hostname";
@@ -353,12 +376,20 @@ bool CTorProcess::Start(const std::string& dataDir, int socks, int hsPort, bool
 
         // Check if Tor process is still alive
         if (!IsRunning()) {
+            fs::path torLogPath = fs::path(torDataDir) / "tor.log";
+            std::string torLogTail = ReadTailLines(torLogPath, 8);
+            if (!torLogTail.empty()) {
+                lastError = strprintf("Tor process exited during bootstrap before the SOCKS port became ready. Recent tor.log: %s", torLogTail.c_str());
+            } else {
+                lastError = "Tor process exited during bootstrap before the SOCKS port became ready.";
+            }
             printf("ERROR: Tor process exited prematurely\n");
             running = false;
             return false;
         }
     }
 
+    lastError = strprintf("Tor process started from '%s' but SOCKS port %d was not ready after 30 seconds.", torBinaryPath.c_str(), socksPort);
     printf("WARNING: Tor started but SOCKS proxy not yet ready after 30s\n");
     printf("  Tor may still be bootstrapping. .onion connections will work once ready.\n");
     return true;

src/tor/tor_process.h

@@ -19,6 +19,7 @@ private:
     std::string torBinaryPath;
     std::string torDataDir;
     std::string torrcPath;
+    std::string lastError;
     int socksPort;
     int hiddenServicePort;
     bool hiddenServiceEnabled;
@@ -59,6 +60,7 @@ public:
 
     // Get the Tor binary path (for diagnostics)
     std::string GetBinaryPath() const { return torBinaryPath; }
+    std::string GetStartupError() const { return lastError; }
 
     // Singleton access
     static CTorProcess* GetInstance();

src/txdb-leveldb.cpp

@@ -613,6 +613,50 @@ bool CTxDB::LoadBlockIndex()
       hashBestChain.ToString().substr(0,20).c_str(), nBestHeight, CBigNum(nBestChainTrust).ToString().c_str(),
       DateTimeStrFormat("%x %H:%M:%S", pindexBest->GetBlockTime()).c_str());
 
+    // Re-evaluate best chain: scan for competing tips with equal or greater trust.
+    // This fixes nodes stuck on the wrong fork after consensus rule changes.
+    {
+        CBlockIndex* pindexBetter = NULL;
+        for (const auto& item : mapBlockIndex)
+        {
+            CBlockIndex* pindex = item.second;
+            if (pindex == pindexBest)
+                continue;
+            if (pindex->nChainTrust > nBestChainTrust)
+            {
+                pindexBetter = pindex;
+                break;
+            }
+            if (pindex->nChainTrust == nBestChainTrust &&
+                pindex->GetBlockHash() < pindexBest->GetBlockHash())
+            {
+                if (!pindexBetter || pindex->GetBlockHash() < pindexBetter->GetBlockHash())
+                    pindexBetter = pindex;
+            }
+        }
+        if (pindexBetter)
+        {
+            printf("LoadBlockIndex(): found better chain tip %s at height %d (trust %s vs %s)\n",
+                pindexBetter->GetBlockHash().ToString().substr(0,20).c_str(),
+                pindexBetter->nHeight,
+                CBigNum(pindexBetter->nChainTrust).ToString().c_str(),
+                CBigNum(nBestChainTrust).ToString().c_str());
+            CBlock block;
+            if (block.ReadFromDisk(pindexBetter))
+            {
+                CTxDB txdb2;
+                if (block.SetBestChain(txdb2, pindexBetter))
+                {
+                    hashBestChain = pindexBetter->GetBlockHash();
+                    pindexBest = pindexBetter;
+                    nBestHeight = pindexBetter->nHeight;
+                    nBestChainTrust = pindexBetter->nChainTrust;
+                    printf("LoadBlockIndex(): switched to better chain tip\n");
+                }
+            }
+        }
+    }
+
     // triangles: load hashSyncCheckpoint (best-effort, non-fatal)
     if (!ReadSyncCheckpoint(Checkpoints::hashSyncCheckpoint))
         printf("LoadBlockIndex(): no sync checkpoint in DB, using default\n");

src/version.cpp

@@ -48,9 +48,9 @@ const std::string CLIENT_NAME("Cryptographic Triangles");
 
 #ifndef BUILD_DESC
 #    ifdef GIT_COMMIT_ID
-#        define BUILD_DESC BUILD_DESC_FROM_COMMIT(DISPLAY_VERSION_MAJOR, DISPLAY_VERSION_MINOR, DISPLAY_VERSION_REVISION, DISPLAY_VERSION_BUILD, GIT_COMMIT_ID)
+#        define BUILD_DESC BUILD_DESC_FROM_COMMIT(CLIENT_VERSION_MAJOR, CLIENT_VERSION_MINOR, CLIENT_VERSION_REVISION, CLIENT_VERSION_BUILD, GIT_COMMIT_ID)
 #    else
-#        define BUILD_DESC BUILD_DESC_FROM_UNKNOWN(DISPLAY_VERSION_MAJOR, DISPLAY_VERSION_MINOR, DISPLAY_VERSION_REVISION, DISPLAY_VERSION_BUILD)
+#        define BUILD_DESC BUILD_DESC_FROM_UNKNOWN(CLIENT_VERSION_MAJOR, CLIENT_VERSION_MINOR, CLIENT_VERSION_REVISION, CLIENT_VERSION_BUILD)
 #    endif
 #endif
 

src/version.h

@@ -51,9 +51,4 @@ static const int BIP0031_VERSION = 60000;
 // "mempool" command, enhanced "getdata" behavior starts with this version:
 static const int MEMPOOL_GD_VERSION = 60002;
 
-#define DISPLAY_VERSION_MAJOR       5
-#define DISPLAY_VERSION_MINOR       7
-#define DISPLAY_VERSION_REVISION    6
-#define DISPLAY_VERSION_BUILD       0
-
 #endif