Perry Grant (January 26, 1924 – December 12, 2004) was an American producer and screenwriter. He was the co-creator of the American sitcom television series Hello, Larry, which he created with his wri
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 0x958995d7bfb6e3c264c52190b3767a5588572ce46e2aafbf6b4eda85b860194f. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/08bba5fa-3a34-44e1-ac50-3fb753666d88.json and https://artists.proofprofile.net/proofs/artist/08bba5fa-3a34-44e1-ac50-3fb753666d88.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).