{"copyright_id":"0x7ce2c75e689f173f40330571220abcd8b376e7e42b45bb16bc5d5054cfa4cb89","name":"Leon McAuliffe & His Western Swing Band","registered_at":"2026-06-15T16:10:27Z","symbol":"NIM0761341","token_address":"0xeea2a4a3aec0e8a721f55dc7e084a66d9a5edcdc","type":"artist","uuid":"07bfe5a4-028d-4c2f-a037-128d8a3133aa"}
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 0x7ce2c75e689f173f40330571220abcd8b376e7e42b45bb16bc5d5054cfa4cb89. Chain 2 (Bitcoin): anchored in block 953871 (2026-06-16T01:46:03Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/07bfe5a4-028d-4c2f-a037-128d8a3133aa.json and https://artists.proofprofile.net/proofs/artist/07bfe5a4-028d-4c2f-a037-128d8a3133aa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).