Joey Murphy is an American screenwriter and television producer. Murphy has written episodes of the cartoon, Doug, The Crew, and Cybill Shepherd's sitcom, Cybill, the last two for which he also serve
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf95861e9903932c168a9cf78dba541588d43d8cbe7ce4062baa794b15b18deb. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a1b7230b-8258-4d2c-ba8f-231d5310308e.json and https://artists.proofprofile.net/proofs/artist/a1b7230b-8258-4d2c-ba8f-231d5310308e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).