Samuel Coles/English Chamber Orchestra/Yehudi Menuhin
{"copyright_id":"0x5295c9f814b4003d938a58c6dc0506b48e48e8d3ec7393b4ea0f49d40dcc99fc","name":"Samuel Coles/English Chamber Orchestra/Yehudi Menuhin","registered_at":"2026-06-21T00:06:00Z","symbol":"NIM1758060","token_address":"0x70aaaad8fe30a5d4caaacd130a6204d00c68d461","type":"artist","uuid":"ce2d7eb0-e32d-4115-bf01-cb6f02492ee1"}
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 0x5295c9f814b4003d938a58c6dc0506b48e48e8d3ec7393b4ea0f49d40dcc99fc. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce2d7eb0-e32d-4115-bf01-cb6f02492ee1.json and https://artists.proofprofile.net/proofs/artist/ce2d7eb0-e32d-4115-bf01-cb6f02492ee1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).