Christopher Hassall
type: MusicGroup
genre: spoken word
description: 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
popularity: 6
followers: 199
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x453134b5ddea013ff3fbd4f3d823f2169dd17224b648a65e3453bf5ca2d8dcaa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954647
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954647
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d613ff9a-70e8-4440-a7b4-45b765c8bb56.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d613ff9a-70e8-4440-a7b4-45b765c8bb56.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d613ff9a-70e8-4440-a7b4-45b765c8bb56
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:36:58Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x453134b5ddea013ff3fbd4f3d823f2169dd17224b648a65e3453bf5ca2d8dcaa","name":"Christopher Hassall","registered_at":"2026-06-21T03:02:52Z","symbol":"NIM1796301","token_address":"0xf71519f93ba592c9370018c2039137d2bfe4f79d","type":"artist","uuid":"d613ff9a-70e8-4440-a7b4-45b765c8bb56"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: 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).
  date published: 2026-06-21T04:36:58Z
  text: {"copyright_id":"0x453134b5ddea013ff3fbd4f3d823f2169dd17224b648a65e3453bf5ca2d8dcaa","name":"Christopher Hassall","registered_at":"2026-06-21T03:02:52Z","symbol":"NIM1796301","token_address":"0xf71519f93ba592c9370018c2039137d2bfe4f79d","type":"artist","uuid":"d613ff9a-70e8-4440-a7b4-45b765c8bb56"}
album: The Dancing Years (All Star 2010 Studio Cast, First Complete Recording)
  type: MusicAlbum
  date published: 2010-12-07