Jason Jonathan Roy (born 21 July 1990) is an English cricketer who played for England in One Day International (ODI) and Twenty20 International (T20I) cricket, and previously played for the Test team.
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 0xd76bc7455aae6db5fcb0ba700114b96998798d6ad43da11937a9635c005cc1f5. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c6bdd97b-8f00-4983-bf44-4082c6671005.json and https://artists.proofprofile.net/proofs/artist/c6bdd97b-8f00-4983-bf44-4082c6671005.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).