Maurice Charles "Mickey" Harris (January 30, 1917 – April 15, 1971) was an American professional baseball player. He was a pitcher in Major League Baseball (MLB) for nine seasons with the Boston Red S
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 0x42e06b168afb4da8e0318009906fbe7ec8859d6990f609f02a9048f28a80ffe3. Chain 2 (Bitcoin): anchored in block 953976 (2026-06-16T16:55:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b996e59-e69b-4cc4-82bf-3c25e2e17018.json and https://artists.proofprofile.net/proofs/artist/2b996e59-e69b-4cc4-82bf-3c25e2e17018.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.