{"copyright_id":"0x51e2bb39f87d7c3998a65f3e4ed0b920b6193f2daef33499fdd4cbee2ecf6c34","name":"Cezary Duchnowski","registered_at":"2026-06-20T19:23:22Z","symbol":"NIM1691726","token_address":"0x66bcd6f288ed3f3baf9bc6aabdaed8fdbf3e8e4e","type":"artist","uuid":"c18f00b1-b1c8-4647-b4e7-1a2d24903faf"}
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 0x51e2bb39f87d7c3998a65f3e4ed0b920b6193f2daef33499fdd4cbee2ecf6c34. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c18f00b1-b1c8-4647-b4e7-1a2d24903faf.json and https://artists.proofprofile.net/proofs/artist/c18f00b1-b1c8-4647-b4e7-1a2d24903faf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).