{"copyright_id":"0xb53facdfba3470bbd879a8cf65a2116bbf7b910bf1f4bd90b379c0fca3e6bc0f","name":"Джаз-оркестр п/у Леонида Утесова","registered_at":"2026-06-17T15:47:57Z","symbol":"NIM1443118","token_address":"0xb923fb0bc8e2e263df1a30ccce66c83fa17ac474","type":"artist","uuid":"8f9dbc98-abee-40b2-985e-04fd1c0de7fa"}
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 0xb53facdfba3470bbd879a8cf65a2116bbf7b910bf1f4bd90b379c0fca3e6bc0f. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8f9dbc98-abee-40b2-985e-04fd1c0de7fa.json and https://artists.proofprofile.net/proofs/artist/8f9dbc98-abee-40b2-985e-04fd1c0de7fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).