Frederick Lee Hall (July 24, 1916 – March 18, 1970) was an American lawyer, judge, and politician who served as the 31st lieutenant governor of Kansas from 1951 to 1955 and 33rd governor of Kansas fro
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 0x5df3cedf424cf2d9b99b97794c97de174eea6c63268300ffe8d97f2f209a93a9. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b8270cd4-d5f7-401b-bdd0-64763a6a7e3b.json and https://artists.proofprofile.net/proofs/artist/b8270cd4-d5f7-401b-bdd0-64763a6a7e3b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).