{"copyright_id":"0x580fd6ab8ec07d0df47377acdd4ad8e4cede5981b7eafe7f85cbfad64b5e8cf2","name":"Sóley Rún Arnarsdóttir","registered_at":"2026-06-15T06:26:51Z","symbol":"NIM0710368","token_address":"0xdab628e4c6864f0bb7fdc7747fab77ca3c98d634","type":"artist","uuid":"f7394aff-b25a-48ce-8dbf-32478ca49419"}
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 0x580fd6ab8ec07d0df47377acdd4ad8e4cede5981b7eafe7f85cbfad64b5e8cf2. Chain 2 (Bitcoin): anchored in block 953812 (2026-06-15T17:06:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f7394aff-b25a-48ce-8dbf-32478ca49419.json and https://artists.proofprofile.net/proofs/artist/f7394aff-b25a-48ce-8dbf-32478ca49419.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).