Tommy Noble (4 March 1897 – 1 April 1966) was a British boxer who was British bantamweight champion between 1918 and 1919, and European champion in 1919. He won the World featherweight title in 1920.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3705c64c2010597a1b7402925be28625e1baeec9f0f69bb80f6fe59aef02cfe6. 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/53a0081f-e2e2-4b09-ae57-18d8c288e3cd.json and https://artists.proofprofile.net/proofs/artist/53a0081f-e2e2-4b09-ae57-18d8c288e3cd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).