{"copyright_id":"0xadbe76e83990be9dbf12ef240ce266af4e07b97eaf4ea12cacfd53950cc2cef7","name":"Halva Mänskligheten","registered_at":"2026-06-16T00:25:09Z","symbol":"NIM0879374","token_address":"0x8d667b8a209f8beae8a64e0b35e2f59ee56f8653","type":"artist","uuid":"1e586ffe-a9b5-494e-b8be-b91abfc2f3df"}
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 0xadbe76e83990be9dbf12ef240ce266af4e07b97eaf4ea12cacfd53950cc2cef7. 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/1e586ffe-a9b5-494e-b8be-b91abfc2f3df.json and https://artists.proofprofile.net/proofs/artist/1e586ffe-a9b5-494e-b8be-b91abfc2f3df.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).