The Fantastic Four, often abbreviated as FF, is a superhero team appearing in American comic books published by Marvel Comics. The team debuted in The Fantastic Four #1 (cover-dated November 1961), he
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 0x74a21f3c8ec2131d7ee01058a5bcb967aa574134350813eb72feb76b28c04a79. Chain 2 (Bitcoin): anchored in block 953947 (2026-06-16T13:14:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/23dd97a3-5920-418b-b6e6-95ad87641142.json and https://artists.proofprofile.net/proofs/artist/23dd97a3-5920-418b-b6e6-95ad87641142.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Alvin Stone (The Birth And Death Of A Gangster) / Night People