{"copyright_id":"0x2ddd3e0f21b8d75bf6703c34aa279360734d367fa32c0dada63f7fd77ecf1a89","name":"Opernchor des Theater Freiburg","registered_at":"2026-06-16T16:46:58Z","symbol":"NIM1113737","token_address":"0xd33fff229f536c65e6a9cc0f37320edd370bfcee","type":"artist","uuid":"4dca8c1b-8385-4255-a9b4-a4de9c1cae03"}
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ddd3e0f21b8d75bf6703c34aa279360734d367fa32c0dada63f7fd77ecf1a89. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4dca8c1b-8385-4255-a9b4-a4de9c1cae03.json and https://artists.proofprofile.net/proofs/artist/4dca8c1b-8385-4255-a9b4-a4de9c1cae03.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).