{"copyright_id":"0x9a55245bf082c6cfcbe1c0b509fb1a5eee820ce1bff4b2f57b6c04d5a6545cce","name":"Olivia Rodriguez","registered_at":"2026-06-16T12:56:03Z","symbol":"NIM1058650","token_address":"0xacfa1bfb5fa9defc55e36fa46d0e5046b6f14f0a","type":"artist","uuid":"4310d5a8-cfb0-4f16-910f-09927bfd0bbc"}
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 0x9a55245bf082c6cfcbe1c0b509fb1a5eee820ce1bff4b2f57b6c04d5a6545cce. Chain 2 (Bitcoin): anchored in block 954050 (2026-06-17T05:14:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4310d5a8-cfb0-4f16-910f-09927bfd0bbc.json and https://artists.proofprofile.net/proofs/artist/4310d5a8-cfb0-4f16-910f-09927bfd0bbc.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.