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Merge da083d4bbd into merged_master (Bitcoin PR bitcoin/bitcoin#29775)

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ivanlele 2026-03-11 17:10:37 +00:00
commit d06014267a
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27 changed files with 291 additions and 31 deletions
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12
src/validation.cpp
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@ -4767,6 +4767,18 @@ static bool ContextualCheckBlockHeader(const CBlockHeader& block, BlockValidatio
LogPrintf("ERROR: %s: block height in header is incorrect (got %d, expected %d)\n", __func__, block.block_height, nHeight);
return state.Invalid(BlockValidationResult::BLOCK_INVALID_HEADER, "bad-header-height");
}
// Testnet4 only: Check timestamp against prev for difficulty-adjustment
// blocks to prevent timewarp attacks (see https://github.com/bitcoin/bitcoin/pull/15482).
if (consensusParams.enforce_BIP94) {
// Check timestamp for the first block of each difficulty adjustment
// interval, except the genesis block.
if (nHeight % consensusParams.DifficultyAdjustmentInterval() == 0) {
if (block.GetBlockTime() < pindexPrev->GetBlockTime() - 60 * 60 * 2) {
return state.Invalid(BlockValidationResult::BLOCK_INVALID_HEADER, "time-timewarp-attack", "block's timestamp is too early on diff adjustment block");
}
}
}
// Check timestamp
if (block.Time() > NodeClock::now() + std::chrono::seconds{MAX_FUTURE_BLOCK_TIME}) {