Stuart Turner may refer to: Stuart Turner (baseball) (born 1991), American baseball player Stuart Turner (cricketer) (born 1943), English cricketer Stuart Turner (engineer) (1869–1920), English engin
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 0x1ddb099ddf3b8a56858b13c801244edde773552c76d135855d3773dbc7fdb2dc. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/70bfa89e-488a-4429-a3df-c840257b24dc.json and https://artists.proofprofile.net/proofs/artist/70bfa89e-488a-4429-a3df-c840257b24dc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).