Bitcoin

In this chapter, the technical details of BitcoinBitcoin are introduced. The first section starts with a description of Bitcoin blockchain technologies, which covers details of Bitcoin block rewards, blockchain characteristics, and the attacker’s dilemma issues. In the second section, details of Bitcoin's blockchain file size are described along with the Merkle tree, which is used in chaining all ledger BTC transaction ID (TXID) information to the block header's Merkle root. In the third section, the operations applied in Bitcoin transaction verification, Proof-of-Work (PoW) block mining, blockchain forks, and TXID are described. The fourth section provides details of the Bitcoin block header, which includes the block version, Merkle root hash, nonce, nBits target threshold, and serialized blocks.