{"copyright_id":"0xbd6f1d8f89cb1bf71744e0b461ab084f7ca867ff0402c9ddfec728095cc0cd62","name":"Trio Recuerdos del Sur","registered_at":"2026-06-17T18:44:33Z","symbol":"NIM1485277","token_address":"0x819cde71abd516be9b4cbabd2a100513ddf5a1e7","type":"artist","uuid":"9832aa14-b9cb-4bbb-bfe7-17e58ed8b86d"}
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 0xbd6f1d8f89cb1bf71744e0b461ab084f7ca867ff0402c9ddfec728095cc0cd62. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9832aa14-b9cb-4bbb-bfe7-17e58ed8b86d.json and https://artists.proofprofile.net/proofs/artist/9832aa14-b9cb-4bbb-bfe7-17e58ed8b86d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).