James Cox may refer to: Politics James Cox (Nova Scotia politician) (died 1805), merchant and politician in Nova Scotia James Cox (New Jersey politician) (1753–1810), United States Representative f
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 0xdd4e06dbf9027803eca726219c1b53a1cdb1b254fad316a200fcc4603230db4c. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b625ac31-f5d1-45ad-b804-ea6d2441d14a.json and https://artists.proofprofile.net/proofs/artist/b625ac31-f5d1-45ad-b804-ea6d2441d14a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).