{"copyright_id":"0x0c328dcf50d1382aae1d4b7986fdb5879869f4d53fb2fb4c0b36abbc785b7d58","name":"Igreja Nova Vida de Alcântara","registered_at":"2026-06-15T06:09:52Z","symbol":"NIM0706324","token_address":"0x69eb2bc3a76ecc03ed8452cc7a25efd8bb040926","type":"artist","uuid":"f449be8b-5722-4aa0-8ade-8b7abfccff99"}
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 0x0c328dcf50d1382aae1d4b7986fdb5879869f4d53fb2fb4c0b36abbc785b7d58. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f449be8b-5722-4aa0-8ade-8b7abfccff99.json and https://artists.proofprofile.net/proofs/artist/f449be8b-5722-4aa0-8ade-8b7abfccff99.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).