Bruce Hungerford
type: MusicGroup
genre: classical
description: Bruce Hungerford (24 November 192226 January 1977), known for the majority of his career as Leonard Hungerford, was an Australian pianist. Biography Born in Korumburra, Victoria, Bruce Hungerford wa
popularity: 6
followers: 154
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x73d57f3db8d37898a7770b6fff3b55e7fa247caf05116c7211ff69238475aa7c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953851
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953851
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/02111ea6-d575-4254-ab63-2bc7b858bcb3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/02111ea6-d575-4254-ab63-2bc7b858bcb3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/02111ea6-d575-4254-ab63-2bc7b858bcb3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T23:06:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x73d57f3db8d37898a7770b6fff3b55e7fa247caf05116c7211ff69238475aa7c","name":"Bruce Hungerford","registered_at":"2026-06-15T14:10:24Z","symbol":"NIM0732683","token_address":"0x10a400d3c3a2da9aa1cbf8d7da58c747d3fc0210","type":"artist","uuid":"02111ea6-d575-4254-ab63-2bc7b858bcb3"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d57f3db8d37898a7770b6fff3b55e7fa247caf05116c7211ff69238475aa7c. Chain 2 (Bitcoin): anchored in block 953851 (2026-06-15T23:06:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/02111ea6-d575-4254-ab63-2bc7b858bcb3.json and https://artists.proofprofile.net/proofs/artist/02111ea6-d575-4254-ab63-2bc7b858bcb3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T23:06:35Z
  text: {"copyright_id":"0x73d57f3db8d37898a7770b6fff3b55e7fa247caf05116c7211ff69238475aa7c","name":"Bruce Hungerford","registered_at":"2026-06-15T14:10:24Z","symbol":"NIM0732683","token_address":"0x10a400d3c3a2da9aa1cbf8d7da58c747d3fc0210","type":"artist","uuid":"02111ea6-d575-4254-ab63-2bc7b858bcb3"}
album: Beethoven: Masterpieces for Solo Piano
  type: MusicAlbum
  date published: 2003-08-26
album: Beethoven: Piano Sonatas
  type: MusicAlbum
  date published: 2003-08-26
album: Beethoven: Masterpieces for Solo Piano
  type: MusicAlbum
  date published: 2003-08-26
album: Beethoven: Piano Sonatas
  type: MusicAlbum
  date published: 2003-08-26
album: Beethoven: Piano Sonatas
  type: MusicAlbum
  date published: 2004-04-27
album: Beethoven: Piano Sonatas
  type: MusicAlbum
  date published: 2004-04-27