Duke Ellington and His Cotton Club Orchestra feat. Teddy Bunn
{"copyright_id":"0xba8ecfcefb099c287ec753b1913d7410719622e0823e2278d3905c56c7b17a7b","name":"Duke Ellington and His Cotton Club Orchestra feat. Teddy Bunn","registered_at":"2026-06-17T09:15:49Z","symbol":"NIM1349634","token_address":"0xfb064137a4673a9c5c7f98e6fe8f758bcbd9c7ca","type":"artist","uuid":"7d91b63b-09fb-4e16-b972-d517c4eeef1e"}
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 0xba8ecfcefb099c287ec753b1913d7410719622e0823e2278d3905c56c7b17a7b. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d91b63b-09fb-4e16-b972-d517c4eeef1e.json and https://artists.proofprofile.net/proofs/artist/7d91b63b-09fb-4e16-b972-d517c4eeef1e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).