Cornelius McGillicuddy (December 22, 1862 – February 8, 1956), better known as Connie Mack, was an American professional baseball catcher, manager, and team owner. Mack holds records for the most wins
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 0x3650b3c2ef9e9680d24db43c9f0fde0bf2878d3387316574f570e5c87a56ea02. Chain 2 (Bitcoin): anchored in block 953860 (2026-06-15T23:55:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/029b4494-7dc0-484a-bc13-6a11875828a4.json and https://artists.proofprofile.net/proofs/artist/029b4494-7dc0-484a-bc13-6a11875828a4.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.