{"copyright_id":"0xc9f1bc26ce4ab5fc869698e731d3218db10f2940fd6f4d1eca2c2fbdefbabed2","name":"Jonathan Della Marianna","registered_at":"2026-06-17T08:26:12Z","symbol":"NIM1337809","token_address":"0x429198b6add9ad0577d92cf68247382c3da0dbaf","type":"artist","uuid":"7b0146f8-af36-497d-ab8d-aa6f394b88da"}
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 0xc9f1bc26ce4ab5fc869698e731d3218db10f2940fd6f4d1eca2c2fbdefbabed2. Chain 2 (Bitcoin): anchored in block 954097 (2026-06-17T13:13:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b0146f8-af36-497d-ab8d-aa6f394b88da.json and https://artists.proofprofile.net/proofs/artist/7b0146f8-af36-497d-ab8d-aa6f394b88da.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).