Rob Gardner, Spire Chorus & London Symphony Orchestra, Jenee Prince
{"copyright_id":"0x879c28b1427fa6665f0ea6c4443afd2b8c199698d82de8a21ad48f5dcbab4a50","name":"Rob Gardner, Spire Chorus & London Symphony Orchestra, Jenee Prince","registered_at":"2026-06-16T23:36:45Z","symbol":"NIM1211506","token_address":"0xff3885a1c1ae0433b9027f5395948d3363aceb15","type":"artist","uuid":"618a8c3e-b6b8-4f03-bf55-2f0edb64d6ba"}
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 0x879c28b1427fa6665f0ea6c4443afd2b8c199698d82de8a21ad48f5dcbab4a50. 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/618a8c3e-b6b8-4f03-bf55-2f0edb64d6ba.json and https://artists.proofprofile.net/proofs/artist/618a8c3e-b6b8-4f03-bf55-2f0edb64d6ba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).