A Sardinian singer and accompanying guitarist
{"copyright_id":"0xaf23622a7770fbff7f9c546ebd81d2d81a37a81c8f4e9c21b2ddb664b52f8c76","name":"A Sardinian singer and accompanying guitarist","registered_at":"2026-06-14T14:47:07Z","symbol":"NIM0486106","token_address":"0xa9e4067d45f65469f2d3cba844a3032994cabe75","type":"artist","uuid":"62052f4d-1bdb-47e0-b849-bb9eb52d7e16"}
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 0xaf23622a7770fbff7f9c546ebd81d2d81a37a81c8f4e9c21b2ddb664b52f8c76. Chain 2 (Bitcoin): anchored in block 953678 (2026-06-14T19:23:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/62052f4d-1bdb-47e0-b849-bb9eb52d7e16.json and https://artists.proofprofile.net/proofs/artist/62052f4d-1bdb-47e0-b849-bb9eb52d7e16.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).