Steven Dixon was an American Negro league pitcher in the 1910s. Dixon played for the Chicago Giants in 1914 and 1915, and for the Chicago American Giants in 1916. In nine recorded career appearances
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 0x8262407659ad39b04b86c06c91b4155653e6c8352e8d7a18d6c5269baab062db. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b936c681-380b-4c2e-a2b6-cf8767f32386.json and https://artists.proofprofile.net/proofs/artist/b936c681-380b-4c2e-a2b6-cf8767f32386.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).