__NOTOC__ Jon Stephen Byrne (born 23 June 1983) is an Australian former Major League Baseball (MLB) umpire. He made his debut on 16 May 2014, becoming the first MLB professional umpire to have been bo
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 0x717b2dce90a074d3ad57a73e45a75ea837ea2ec673efe605823b1e8c9ec9d57c. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7fdf4a73-6be4-4bfc-b4ac-eb49bb7c89c1.json and https://artists.proofprofile.net/proofs/artist/7fdf4a73-6be4-4bfc-b4ac-eb49bb7c89c1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).