{"copyright_id":"0x3bdd5fb24baa59cbc1eca8ba9ecd3ae666fcede3ee24550b07339e8bf3820fd6","name":"Gurmehar Singh","registered_at":"2026-06-16T00:27:46Z","symbol":"NIM0880002","token_address":"0x8c40fa44476bba4c0e4f1f34312f3d7c3db1741b","type":"artist","uuid":"1f4a8420-edde-47d5-8fb2-ebb8fefe5a7b"}
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 0x3bdd5fb24baa59cbc1eca8ba9ecd3ae666fcede3ee24550b07339e8bf3820fd6. Chain 2 (Bitcoin): anchored in block 953932 (2026-06-16T11:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1f4a8420-edde-47d5-8fb2-ebb8fefe5a7b.json and https://artists.proofprofile.net/proofs/artist/1f4a8420-edde-47d5-8fb2-ebb8fefe5a7b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).