Tom Chadbon (born 27 February 1946) is an English actor who has spent much of his career appearing on British television. Although principally a character actor, he has occasionally had leading or rec
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 0xd3217f15794c2390c2b8aa6f54ddb6675627f45725411111d0df59eceed6b126. Chain 2 (Bitcoin): anchored in block 954032 (2026-06-17T01:59:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3ab1dc47-11f2-469f-a248-2a5309ed2c25.json and https://artists.proofprofile.net/proofs/artist/3ab1dc47-11f2-469f-a248-2a5309ed2c25.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).