Charles Edward Cook Jr. (born November 20, 1953) is an American political analyst. Specializing in election forecasts and political trends, Cook writes election forecasts and rankings in the publicati
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 0x631b9764a1fa595169b315cbab2365f9642cb74d48b53034de83c4a1844cdb6b. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e53b65d7-6260-4dc4-865f-686e5bd763bb.json and https://artists.proofprofile.net/proofs/artist/e53b65d7-6260-4dc4-865f-686e5bd763bb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).