James Arthur Griffin (August 10, 1943 – January 11, 2005) was an American singer, guitarist and songwriter, best known for his work with the 1970s soft rock band Bread. He won an Academy Award for Bes
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 0x5a6449d1ad1df1d628c22d670fdec58c0bb07b9de758d7e3fd19dde50281eddc. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/867f1c4b-3dde-44da-941c-eda858e37522.json and https://artists.proofprofile.net/proofs/artist/867f1c4b-3dde-44da-941c-eda858e37522.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).