{"copyright_id":"0xfa763e6d68ed7a556f5dd8f9b4aef6ad088fe28e1f7dbbc58ec619f75458afea","name":"Angel Pulice + Ruth de Vicenzo","registered_at":"2026-06-20T04:37:07Z","symbol":"NIM1513163","token_address":"0x0713abbf2ed7f445d91d0e0da9b0997eb5c83271","type":"artist","uuid":"9cddb8da-db81-40a6-8313-fb381989aabe"}
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 0xfa763e6d68ed7a556f5dd8f9b4aef6ad088fe28e1f7dbbc58ec619f75458afea. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9cddb8da-db81-40a6-8313-fb381989aabe.json and https://artists.proofprofile.net/proofs/artist/9cddb8da-db81-40a6-8313-fb381989aabe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5362ecd14ec8630a2a6a3ab6c96a18a9b82e8ddc9b2ef79b66a687f28ddc5649. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN92032555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa441c6266acdb6d9ca7363d2434fdd30f4bb349fbcdc5dca4dd6a5aadc034a0d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNA2058805.