Coburn Dyas "Cobe" Jones (August 21, 1907 – June 3, 1969) was a Major League Baseball player. Jones played for the Pittsburgh Pirates of the National League for two seasons. In , Jones only played in
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 0x75a705ff0ff3b68c207469d7e7e3820506fef0fc3270574f191f0ee9814241a3. Chain 2 (Bitcoin): anchored in block 954131 (2026-06-17T19:19:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7c50d72a-22bd-4ab9-8600-2f7d29e2c47a.json and https://artists.proofprofile.net/proofs/artist/7c50d72a-22bd-4ab9-8600-2f7d29e2c47a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).