Jay Parker (July 8, 1874 – June 8, 1935) was a starting pitcher who played briefly for the Pittsburgh Pirates during the season. Listed at , 185 lb., Parker batted left-handed and threw right-handed.
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 0x8853ddcbda7396e9df5e30882e811829a4d1f7fc28125812f1af2b4ba8a89d01. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/76c50c39-b8f8-4dc6-bd4c-e70cef920a8c.json and https://artists.proofprofile.net/proofs/artist/76c50c39-b8f8-4dc6-bd4c-e70cef920a8c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).