{"copyright_id":"0xed49ef00ad4fe78bd1620d49dcdfb506293effd4b6fabbc5923ae4ddb1a15e10","name":"Mike osmand","registered_at":"2026-06-20T23:25:35Z","symbol":"NIM1747595","token_address":"0x0b7bc26ee17353dfd1630829a2c75111b9adb2e6","type":"artist","uuid":"ccbca6af-f6ec-4652-9aac-bfe5fa22ab8f"}
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 0xed49ef00ad4fe78bd1620d49dcdfb506293effd4b6fabbc5923ae4ddb1a15e10. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ccbca6af-f6ec-4652-9aac-bfe5fa22ab8f.json and https://artists.proofprofile.net/proofs/artist/ccbca6af-f6ec-4652-9aac-bfe5fa22ab8f.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.