Peter Blake may refer to: Peter Blake (cricketer) (1927–2011), English cricketer Peter Blake (artist) (born 1932), British pop artist Peter Blake (sailor) (1948–2001), New Zealand yachtsman Peter
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 0xc286eceab8689284f21c8f2a94a378481c0f3037fdb21d0b2b86f25f524a87f5. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/58bed89d-dc08-4d15-a75f-18ca67669f94.json and https://artists.proofprofile.net/proofs/artist/58bed89d-dc08-4d15-a75f-18ca67669f94.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).