{"copyright_id":"0xff7bb433af47f13f9aa8c0dca16f658a4af0cd572dc2b1c8d8d5a6dd4fe3feef","name":"Saxophone Smooth Jazz Channel","registered_at":"2026-06-16T22:25:50Z","symbol":"NIM1194605","token_address":"0xe403e2d633cd27b6814dbb58b93c58f8256fd332","type":"artist","uuid":"5e0ade72-694e-4676-bcaa-5bf048a6b3ea"}
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 0xff7bb433af47f13f9aa8c0dca16f658a4af0cd572dc2b1c8d8d5a6dd4fe3feef. 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/5e0ade72-694e-4676-bcaa-5bf048a6b3ea.json and https://artists.proofprofile.net/proofs/artist/5e0ade72-694e-4676-bcaa-5bf048a6b3ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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