Bitcoin
A public proof-of-work blockchain Truestamp uses two ways, capturing new Bitcoin block hashes as entropy observations and committing epoch roots into a transaction OP_RETURN output, which appears in a proof bundle as a commitments entry with chain bitcoin and a regtest, testnet, or mainnet network.
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
commitments entry with a chain of "bitcoin" and a network of regtest, testnet,
or mainnet, carrying the block height, the transaction hash, the epoch root written as
the OP_RETURN value, the txoutproof, the raw transaction, and the 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