{"copyright_id":"0x8eb5feaab678aa11bb6923849a0216348e6a06d1f0f6800b9f1884eb78a9c520","name":"Elever från Adolf Fredriks Musikskola","registered_at":"2026-06-16T23:45:30Z","symbol":"NIM1213597","token_address":"0xa04ea21ef07a1086d661ace8bf68fd8bf2326fbc","type":"artist","uuid":"61daf03a-27eb-4ae1-b33b-aee84cdd110e"}
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 0x8eb5feaab678aa11bb6923849a0216348e6a06d1f0f6800b9f1884eb78a9c520. 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/61daf03a-27eb-4ae1-b33b-aee84cdd110e.json and https://artists.proofprofile.net/proofs/artist/61daf03a-27eb-4ae1-b33b-aee84cdd110e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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