Function CheckBlockHeader

src/validation.cpp:3276–3301

}

static bool CheckBlockHeader(const CBlockHeader& block, CValidationState& state, const Consensus::Params& consensusParams, bool fCheckPOW = true)
{
    // Check Equihash solution is valid
    bool postfork = block.nHeight >= (uint32_t)consensusParams.BTGHeight;
    if (fCheckPOW && postfork) {
        const CChainParams& chainparams = Params();
        const size_t sol_size = chainparams.EquihashSolutionWidth(block.nHeight);
        if(block.nSolution.size() != sol_size) {
            return state.DoS(
                100, error("CheckBlockHeader(): Equihash solution has invalid size have %d need %d",
                           block.nSolution.size(), sol_size),
                REJECT_INVALID, "invalid-solution-size");
        }
        if (!CheckEquihashSolution(&block, Params())) {
            LogPrintf("CheckBlockHeader(): Equihash solution invalid at height %d\n", block.nHeight);
            return state.DoS(100, error("CheckBlockHeader(): Equihash solution invalid"),
                            REJECT_INVALID, "invalid-solution");
        }
    }

    // Check proof of work matches claimed amount
    if (fCheckPOW && !CheckProofOfWork(block.GetHash(), block.nBits, postfork, consensusParams))
        return state.DoS(50, false, REJECT_INVALID, "high-hash", false, "proof of work failed");

    return true;
}

bool CheckBlock(const CBlock& block, CValidationState& state, const Consensus::Params& consensusParams, bool fCheckPOW, bool fCheckMerkleRoot)
{