Claude's 2026-07-07 audit of 2a4da33 (PoS reward rework) and 239cf61
(sigcache fix) concluded:
- 2a4da33 must stay reverted: chain-split risk, motivation gone
(a78a420 already relaxed the only test that cared), and the new
formula is worse than the old (drops fractional coin-age, int64
overflow risk on large coin-age). If exact proportionality is
ever wanted, it requires a height-gated hard fork.
- 239cf61 is safe to re-land: pure performance fix, no consensus
change, SHA256-collision false-positive risk is cryptographically
infeasible. Re-landed in PR #21 / fix/sigcache-false-positives
as a 6.1.6 candidate.
T024 in V6_TASKS.md records the rejection and the hard-fork
prerequisite for any future re-attempt.
Sami Ahmed