thumb|A sculpture depicting Jimmy Reid later in his career James Reid (9 July 1932 – 10 August 2010) was a Scottish trade union activist, orator, politician and journalist born in Govan, Glasgow. His
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9a2733402198c39072999a7f4bc2065e582295e66286a4a80af6bf511454ed. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c2341f9d-0220-4d43-8893-26876ba00a6e.json and https://artists.proofprofile.net/proofs/artist/c2341f9d-0220-4d43-8893-26876ba00a6e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).