Jacob Keith Thompson (born January 31, 1994) is an American professional baseball pitcher for the Piratas de Campeche of the Mexican League. He has previously played in Major League Baseball (MLB) for
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 0x968d640648a2147d59fe69fef020aa68b565e1c8fe4b33066037028aa61c09b2. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5092c836-fefa-4896-b6ac-ac2432ce0b6d.json and https://artists.proofprofile.net/proofs/artist/5092c836-fefa-4896-b6ac-ac2432ce0b6d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).