Jack Davis Griffo (born December 11, 1996) is an American actor. He starred as Max Thunderman on the Nickelodeon series The Thundermans (2013–2018). Griffo reprised his role in its spinoff. Griffo als
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 0xf1417420a00d689882ae613f065809d8d4a166aa0d8be3b11446e46b9cacc0e3. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7335d9df-5567-453c-862c-6b0e07781e45.json and https://artists.proofprofile.net/proofs/artist/7335d9df-5567-453c-862c-6b0e07781e45.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).