John B. Cooper is a retired United States Air Force lieutenant general who most recently served as the Air Force deputy chief of staff for logistics, engineering and force protection. During his 35-y
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 0xf8b91be4a682e626ddefc1d0a4ca1796dfc16f2be8139560be070ab44b0f3e2e. 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/908b2261-33d5-4e51-bc8d-d598d306d71d.json and https://artists.proofprofile.net/proofs/artist/908b2261-33d5-4e51-bc8d-d598d306d71d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).