Hungarian State Opera Chorus / Hungarian State Opera Orchestra
{"copyright_id":"0xadc6587d45d04fdfe8e7df8d51136124e0f239a9fdc27b5d535e0452b9d15e97","name":"Hungarian State Opera Chorus / Hungarian State Opera Orchestra","registered_at":"2026-06-15T05:29:09Z","symbol":"NIM0696595","token_address":"0x16d5d2b278c33c6d96ab5ad6f5d152e22f3cc3c4","type":"artist","uuid":"ee78b24e-9316-4739-bf9b-b5bec9b2570f"}
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 0xadc6587d45d04fdfe8e7df8d51136124e0f239a9fdc27b5d535e0452b9d15e97. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ee78b24e-9316-4739-bf9b-b5bec9b2570f.json and https://artists.proofprofile.net/proofs/artist/ee78b24e-9316-4739-bf9b-b5bec9b2570f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).