Don or Donald James may refer to: Don James (American football) (1932–2013), American college football coach Don James (executive), Nintendo executive Don James (rugby union) (born 1964), American
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 0x2ee4f8ac4a11cd3ca4615f4f5e2485ba3b95b3bbfe4b4d79a4754c0a98fa6dc4. 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/63937c80-4075-4e8d-9478-6ce40787df78.json and https://artists.proofprofile.net/proofs/artist/63937c80-4075-4e8d-9478-6ce40787df78.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).