Jeffrey Lindon Cox (born November 9, 1955) is a former Major League Baseball third base coach for the Chicago White Sox. He is currently a baserunning specialist for the Detroit Tigers. Previously, Co
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 0x44ee7f40bdb75505a2ffab42ffb56d3caea319873749fe7ec153a5df82f2b0fe. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f16e393e-7568-4721-a798-97a8ec9b670a.json and https://artists.proofprofile.net/proofs/artist/f16e393e-7568-4721-a798-97a8ec9b670a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).