Lennie Hayton (conductor), Donald O'Connor (performer), MGM Studio Orchestra
{"copyright_id":"0xe48f4e62e8dede014d9e602ceb9e62eb51e0602a168908da26f860c0f82995c3","name":"Lennie Hayton (conductor), Donald O'Connor (performer), MGM Studio Orchestra","registered_at":"2026-06-16T09:39:02Z","symbol":"NIM1011648","token_address":"0x4db68236ee7905a7a9bd9cb8a872dbf6b8d43265","type":"artist","uuid":"398bde06-bc8f-4ff3-b553-b4de0295fa23"}
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 0xe48f4e62e8dede014d9e602ceb9e62eb51e0602a168908da26f860c0f82995c3. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/398bde06-bc8f-4ff3-b553-b4de0295fa23.json and https://artists.proofprofile.net/proofs/artist/398bde06-bc8f-4ff3-b553-b4de0295fa23.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).