Matthew James or Mathew James may refer to: Mathew James (umpire) (born 1974), Australian rules football umpire Matthew James (actor) (born 1973), American actor Matthew James (politician) (born 1955)
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 0x9b4915dfdf5ecb32c22f6c2cd2594719891810ac79ec60f09f6ff8ae49c0e016. Chain 2 (Bitcoin): anchored in block 954063 (2026-06-17T07:49:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/47a72e6a-818b-42e6-90b3-3c8e5e9a9372.json and https://artists.proofprofile.net/proofs/artist/47a72e6a-818b-42e6-90b3-3c8e5e9a9372.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).