Male Choir "Drevnerusskiy Rospev", Dir. Anatoly Grindenko
{"copyright_id":"0xfada8c6cfc9c78d931f71d77ce890ee98827d850ecc4e7573895d54644a68ac9","name":"Male Choir \"Drevnerusskiy Rospev\", Dir. Anatoly Grindenko","registered_at":"2026-06-21T08:53:03Z","symbol":"NIM1881024","token_address":"0xe00ca907bb59fb60d158944eedefece5880a50c7","type":"artist","uuid":"e7875a42-2ed0-41b4-bd64-8f3e8d977bd2"}
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 0xfada8c6cfc9c78d931f71d77ce890ee98827d850ecc4e7573895d54644a68ac9. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e7875a42-2ed0-41b4-bd64-8f3e8d977bd2.json and https://artists.proofprofile.net/proofs/artist/e7875a42-2ed0-41b4-bd64-8f3e8d977bd2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).