Keith Washington (Duet With Letitia Body)
{"copyright_id":"0xc8baa2d49140ad6e3c0151b7423caf39c43bc423dd45f2d3de7e9d5ebb90fb0c","name":"Keith Washington (Duet With Letitia Body)","registered_at":"2026-06-21T04:16:04Z","symbol":"NIM1816557","token_address":"0x51a970b6de9e12cc9487ebae0328bb52c9cee1a5","type":"artist","uuid":"d9462de8-ffbd-4b06-a07c-43e13cadb633"}
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 0xc8baa2d49140ad6e3c0151b7423caf39c43bc423dd45f2d3de7e9d5ebb90fb0c. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9462de8-ffbd-4b06-a07c-43e13cadb633.json and https://artists.proofprofile.net/proofs/artist/d9462de8-ffbd-4b06-a07c-43e13cadb633.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).