Module digibyte::util::merkleblock[−][src]

Merkle Block and Partial Merkle Tree

Support proofs that transaction(s) belong to a block.

Examples

use bitcoin::hash_types::Txid;
use bitcoin::hashes::hex::FromHex;
use bitcoin::{Block, MerkleBlock};

// Get the proof from a bitcoind by running in the terminal:
// $ TXID="5a4ebf66822b0b2d56bd9dc64ece0bc38ee7844a23ff1d7320a88c5fdb2ad3e2"
// $ bitcoin-cli gettxoutproof [\"$TXID\"]
let mb_bytes = Vec::from_hex("01000000ba8b9cda965dd8e536670f9ddec10e53aab14b20bacad27b913719\
    0000000000190760b278fe7b8565fda3b968b918d5fd997f993b23674c0af3b6fde300b38f33a5914ce6ed5b\
    1b01e32f570200000002252bf9d75c4f481ebb6278d708257d1f12beb6dd30301d26c623f789b2ba6fc0e2d3\
    2adb5f8ca820731dff234a84e78ec30bce4ec69dbd562d0b2b8266bf4e5a0105").unwrap();
let mb: MerkleBlock = bitcoin::consensus::deserialize(&mb_bytes).unwrap();

// Authenticate and extract matched transaction ids
let mut matches: Vec<Txid> = vec![];
let mut index: Vec<u32> = vec![];
assert!(mb.extract_matches(&mut matches, &mut index).is_ok());
assert_eq!(1, matches.len());
assert_eq!(
    Txid::from_hex(
        "5a4ebf66822b0b2d56bd9dc64ece0bc38ee7844a23ff1d7320a88c5fdb2ad3e2").unwrap(),
    matches[0]
);
assert_eq!(1, index.len());
assert_eq!(1, index[0]);

Structs

MerkleBlock

Data structure that represents a block header paired to a partial merkle tree.

PartialMerkleTree

Data structure that represents a partial merkle tree.

Enums

MerkleBlockError

An error when verifying the merkle block