{"copyright_id":"0x05af21a7ed8703bf7afcbb25f3da922d0d2dff683fd8584247fd6e33dea9cc31","name":"Glen Gray & His Casa Loma Orchestra","registered_at":"2026-06-17T06:43:02Z","symbol":"NIM1313244","token_address":"0x4d9caee0aadef39e605a1ab6b4da3b295c61d1ee","type":"artist","uuid":"75aab05c-e0e5-4bb9-bc78-e7cde39452e8"}
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 0x05af21a7ed8703bf7afcbb25f3da922d0d2dff683fd8584247fd6e33dea9cc31. 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/75aab05c-e0e5-4bb9-bc78-e7cde39452e8.json and https://artists.proofprofile.net/proofs/artist/75aab05c-e0e5-4bb9-bc78-e7cde39452e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Glen Gray & His Casa Loma Orchestra, Vol. 9