{"copyright_id":"0xabb4dbb5598ed8acf4d09f8c5cf9c855899356edd1f80e0268ae2b663e8a896c","name":"Cheik Mechari Ben Rached Affassi","registered_at":"2026-06-20T05:04:18Z","symbol":"NIM1520550","token_address":"0xb28edfc9c64f36ec0a6d6a3d8ecedac7b2d189f1","type":"artist","uuid":"9f3745e0-dab8-4c7c-adb4-1a767399d109"}
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 0xabb4dbb5598ed8acf4d09f8c5cf9c855899356edd1f80e0268ae2b663e8a896c. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9f3745e0-dab8-4c7c-adb4-1a767399d109.json and https://artists.proofprofile.net/proofs/artist/9f3745e0-dab8-4c7c-adb4-1a767399d109.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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