Ezra Butler (September 24, 1763July 12, 1838) was an American clergyman, politician, lawyer, judge, the 11th governor of Vermont, and a United States representative from Vermont. Biography Butler was
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 0x2804770e9fc729a0f586673ac8967dd43222196da0694903a99f3071888a5a1f. Chain 2 (Bitcoin): anchored in block 953717 (2026-06-15T01:05:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/87959037-3a14-4b2c-8a1a-09d5b8ee79d5.json and https://artists.proofprofile.net/proofs/artist/87959037-3a14-4b2c-8a1a-09d5b8ee79d5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).