Bitcoin
A public proof-of-work blockchain Truestamp uses two ways: new Bitcoin block hashes are captured as entropy observations, and epoch roots are committed into a transaction OP_RETURN output, appearing in proof bundles as cx entries with type code 41 and net regtest, testnet, or mainnet.
Overview
Bitcoin is a public proof-of-work blockchain that Truestamp uses in two independent
roles. As an entropy source, each new Bitcoin block hash
is captured as an entropy observation that joins a Truestamp block’s Merkle tree,
evidence that nothing in that block could have been submitted before the Bitcoin block
existed (see external entropy sources). As a commitment
chain, epoch roots are recorded in a Bitcoin transaction’s
OP_RETURN output as part of Block Commitment, covered
in the epoch and Block Commitment. In a
proof bundle, a Bitcoin commitment is a cx
entry with type code 41 and a net of regtest, testnet, or mainnet, carrying the
block height, txid, OP_RETURN value, txoutproof, raw transaction, and epoch proof.
Bitcoin commitments confirm more slowly than Stellar ones.
- Bitcoin: A Peer-to-Peer Electronic Cash System
- Blockchain-based Infrastructure for Proof of Existence in eGovernment
- How Does OpenTimestamps Work (r/Bitcoin discussion)
- Stellar
- Taproot: SegWit version 1 spending rules (BIP 341)
- The Inventor of Blockchain Would Like a Better Bitcoin
- Tsunami of Blockchain Technology and Patents: A Strategic Data-Analytic Overview