Terry Pollard (August 15, 1931 – December 16, 2009) was an American jazz pianist and vibraphonist active in the Detroit jazz scene of the 1940s and 1950s. She has been described as a "major player who
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c03a6017c4314467d693404dcbd7e6a3868d26bef104633526be90f3a9c9f5. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed41bd82-ea56-477d-8813-8998eb939dc7.json and https://artists.proofprofile.net/proofs/artist/ed41bd82-ea56-477d-8813-8998eb939dc7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).