Nathan Thomas may refer to: Nathan Thomas (water polo) (born 1972), Australian water polo player Nathan Thomas (rugby union) (born 1976), Welsh rugby union footballer Nathan Thomas (footballer) (b
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 0x118cae1e289921c3d4ae9c3d212f397fb1156369760f20f1de8a7273a4b4bc2c. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4d81fa0-3460-4995-a365-f71d9e9c22ec.json and https://artists.proofprofile.net/proofs/artist/d4d81fa0-3460-4995-a365-f71d9e9c22ec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).