{"copyright_id":"0x37edec3a48507cd9b9b55633d0a872d7a597cf2de1711bc1fb06beabe742df68","name":"Ku Ebbinge","registered_at":"2026-06-16T00:11:02Z","symbol":"NIM0876002","token_address":"0xac5eb3cc4f0dfab8edef1a5ae4d99baf68ed55d7","type":"artist","uuid":"1db88ba1-ed85-4f8f-a9eb-ca6b7d2d0680"}
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 0x37edec3a48507cd9b9b55633d0a872d7a597cf2de1711bc1fb06beabe742df68. Chain 2 (Bitcoin): anchored in block 953930 (2026-06-16T10:36:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1db88ba1-ed85-4f8f-a9eb-ca6b7d2d0680.json and https://artists.proofprofile.net/proofs/artist/1db88ba1-ed85-4f8f-a9eb-ca6b7d2d0680.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).