Christopher Vernon Hassall (24 March 1912 – 25 April 1963) was an English actor, dramatist, librettist, lyricist and poet, who found his greatest fame in a memorable musical partnership with the actor
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 0x453134b5ddea013ff3fbd4f3d823f2169dd17224b648a65e3453bf5ca2d8dcaa. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d613ff9a-70e8-4440-a7b4-45b765c8bb56.json and https://artists.proofprofile.net/proofs/artist/d613ff9a-70e8-4440-a7b4-45b765c8bb56.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Dancing Years (All Star 2010 Studio Cast, First Complete Recording)