{"copyright_id":"0xf19b680469d44daeabe9f0e7dbcedffde11b2096707fabaf0d65fbbcbe09f865","name":"Chile Valdes","registered_at":"2026-06-20T18:00:50Z","symbol":"NIM1676942","token_address":"0x765e072b824256e966e5e7baa2e262a8ee0cf91b","type":"artist","uuid":"be7dbd21-d0b8-4cd9-b2bf-bc3c12e5db5a"}
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 0xf19b680469d44daeabe9f0e7dbcedffde11b2096707fabaf0d65fbbcbe09f865. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/be7dbd21-d0b8-4cd9-b2bf-bc3c12e5db5a.json and https://artists.proofprofile.net/proofs/artist/be7dbd21-d0b8-4cd9-b2bf-bc3c12e5db5a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).