Blockchain CheckBlock Error Code

bool CBlock::CheckBlock() const { // Size limits if (vtx.empty() || vtx.size() >= MAX_SIZE || ::GetSerializeSize(*this, SER_DISK) > MAX_SIZE) return error("CheckBlock() : size limits failed"); // Check timestamp if (nTime > GetAdjustedTime() + 36 * 60 * 60) return error("CheckBlock() : block timestamp out of range"); // Check proof of work matches claimed amount if (nBits < MINPROOFOFWORK) return error("CheckBlock() : nBits below minimum"); if (GetHash() > (~uint256(0) >> nBits)) return error("CheckBlock() : hash doesn't match nBits"); // First transaction must be coinbase, the rest must not be if (vtx.empty() || !vtx[0].IsCoinBase()) return error("CheckBlock() : first tx is not coinbase"); for (int i = 1; i < vtx.size(); i++) if (vtx[i].IsCoinBase()) return error("CheckBlock() : more than one coinbase"); // Check transactions foreach(const CTransaction& tx, vtx) if (!tx.CheckTransaction()) return error("CheckBlock() : CheckTransaction failed"); // Check merkleroot if (hashMerkleRoot != BuildMerkleTree()) return error("CheckBlock() : hashMerkleRoot mismatch"); return true; }

A screenshot shows C++ code for validating a blockchain block, checking size, timestamps, proof of work, coinbase transactions, transactions, and the Merkle root. The joke is the exaggeratedly thorough chain of checks and repeated failure messages, fitting programmer humor about debugging cryptocurrency code and everything potentially going wrong. EN: A screenshot shows C++ code for validating a blockchain block, checking size, timestamps, proof of work, coinbase transactions, transactions, and the Merkle root. The joke is the exaggeratedly thorough chain of checks and repeated failure messages, fitting programmer humor about debugging cryptocurrency code and everything potentially going wrong.

• @gentoomemes / 13943 2024-10-09