{"copyright_id":"0xc6aa21df30282604bbbdea694b194a51ce48f1e5a6cb86baa7e693b446d13db9","name":"Grupo Amante","registered_at":"2026-06-21T06:21:45Z","symbol":"NIM1846874","token_address":"0xafdacafcfb54c8bfc9b20c967bc3dda6cdcb7ebb","type":"artist","uuid":"e03bebe1-d0b8-4e5d-892f-d8a22ba8ba54"}
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 0xc6aa21df30282604bbbdea694b194a51ce48f1e5a6cb86baa7e693b446d13db9. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e03bebe1-d0b8-4e5d-892f-d8a22ba8ba54.json and https://artists.proofprofile.net/proofs/artist/e03bebe1-d0b8-4e5d-892f-d8a22ba8ba54.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).