John Thomas McCook (born June 20, 1944) is an American television actor. He first gained prominence for his portrayal of the character Lance Prentiss on the television soap opera The Young and the Res
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 0x2b5fa949af3c24e546231c80d9c9fa5662551a08640599d4c2545457b24fbe5c. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/47b046c0-f75f-4622-81d1-a87ab29f58dd.json and https://artists.proofprofile.net/proofs/artist/47b046c0-f75f-4622-81d1-a87ab29f58dd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).