Thomas Robson may refer to: Thomas Robson (actor) (1737–1813), English actor Thomas Robson (priest) (died 1934), South African priest Tom Robson (baseball) (1946–2021), American baseball player Tomm
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 0x32e12dd1b3e01bf523789a69a4d2c0f1fd102ed420be31759c757e0db91d80d1. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/139c159b-b005-4705-b6cc-11471b465a53.json and https://artists.proofprofile.net/proofs/artist/139c159b-b005-4705-b6cc-11471b465a53.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).