{"copyright_id":"0x6e9600bfac9e8cbb3fee0e0c5426b6df77f4e7be07cdbf3916c4af15d1e02f08","name":"Ensemble mit Orchesterbegleitung","registered_at":"2026-06-20T16:36:25Z","symbol":"NIM1656705","token_address":"0xf825752fc1b9e95bcd11f7bacbaba9aa44256eef","type":"artist","uuid":"ba33b700-bb9f-490a-aa2f-f198b2488aee"}
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 0x6e9600bfac9e8cbb3fee0e0c5426b6df77f4e7be07cdbf3916c4af15d1e02f08. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba33b700-bb9f-490a-aa2f-f198b2488aee.json and https://artists.proofprofile.net/proofs/artist/ba33b700-bb9f-490a-aa2f-f198b2488aee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).