Terry Hanck (born December 29, 1944) is an American electric blues saxophonist, singer, songwriter and record producer, who won a Blues Music Award in 2016 in the 'Instrumentalist – Horn' category. Pr
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 0x60468e40c69d34d6dc8ae7103ce84c8da96b23c5793bdb4674e3f184ef21df2f. Chain 2 (Bitcoin): anchored in block 953996 (2026-06-16T20:04:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2ec117fc-cb6c-45c6-abbd-02e9043c557f.json and https://artists.proofprofile.net/proofs/artist/2ec117fc-cb6c-45c6-abbd-02e9043c557f.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.