Clark Wynford Datchler (born 27 March 1964) is an English singer-songwriter and record producer. He first rose to fame in 1987 as the lead singer, songwriter and multi-instrumentalist in the pop band
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 0x413c8040a698558e40b04d2705e8e0dcc75b8ccfa3f669d1353e3950d7cf1c82. 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/48573c63-eb36-4770-9e99-520a50a908b6.json and https://artists.proofprofile.net/proofs/artist/48573c63-eb36-4770-9e99-520a50a908b6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).