Dennis Howard (born September 10, 1954) is an American politician from Oklahoma that served as the Oklahoma Secretary of Agriculture under former Governor of Oklahoma Frank Keating. Concurrent with hi
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 0xeb40efc90f587e3b6cdc5dec8c7a3e602cc3a48515bc6f64345ecdd6f0a82dc7. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/825ffcc6-b58f-425d-9f58-e27fee6521fc.json and https://artists.proofprofile.net/proofs/artist/825ffcc6-b58f-425d-9f58-e27fee6521fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).