"Grumpy Old Man" is the ninth episode of the tenth season of the American animated sitcom Family Guy, and the 174th episode overall. The episode originally aired on Fox in the United States on Decembe
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 0x8b3a57cc90406f165bcef3243c862531ad183200c6a34da552b12fe1b143d062. 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/5658e96a-0e8d-4d88-a5c7-ee683207d593.json and https://artists.proofprofile.net/proofs/artist/5658e96a-0e8d-4d88-a5c7-ee683207d593.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).