Wyatt James Turner (January 5, 1909 – September 19, 1986) was an American Negro league catcher in the 1930s. A native of Pittsburgh, Pennsylvania, Turner played for the Homestead Grays in 1939 and se
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 0xff99bcd58265bb9a4ca409e1b87488f09f167bf5734931b6ab2d1e7c633fa160. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/94ac389b-8a12-4d97-a2a0-8d46681b24a2.json and https://artists.proofprofile.net/proofs/artist/94ac389b-8a12-4d97-a2a0-8d46681b24a2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).