Jonathan Daniel Hamm (born March 10, 1971) is an American actor. He is best known for his role as Don Draper in the period drama series Mad Men (2007–2015), for which he won numerous accolades, includ
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 0xb5f23d18f9c1432c532a8c9ad416daa41cd1665766ee8ae24516ab382bea70e3. 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/8b951835-acdd-4cce-827a-8488099bb917.json and https://artists.proofprofile.net/proofs/artist/8b951835-acdd-4cce-827a-8488099bb917.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).