Leon Trout
type: MusicGroup
description: Sir Herbert Leon Trout (12 February 1906 – 6 March 1978) was an Australian solicitor, businessman and art collector. He was born in Brisbane, Australia, to Walter John Trout, a butcher, and his wife
popularity: 2
followers: 649
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x765e6f1b6eae32352d2b42cfcec55b4a258ff65c086077792b8ce448e17282c8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954650
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954650
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d928795c-ac36-4c80-a959-f2aca0743b89.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d928795c-ac36-4c80-a959-f2aca0743b89.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d928795c-ac36-4c80-a959-f2aca0743b89
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:51:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x765e6f1b6eae32352d2b42cfcec55b4a258ff65c086077792b8ce448e17282c8","name":"Leon Trout","registered_at":"2026-06-21T03:57:56Z","symbol":"NIM1812928","token_address":"0x4007456531dde625e674a0740cf8b8a922bedfda","type":"artist","uuid":"d928795c-ac36-4c80-a959-f2aca0743b89"}
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 0x765e6f1b6eae32352d2b42cfcec55b4a258ff65c086077792b8ce448e17282c8. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d928795c-ac36-4c80-a959-f2aca0743b89.json and https://artists.proofprofile.net/proofs/artist/d928795c-ac36-4c80-a959-f2aca0743b89.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:51:12Z
  text: {"copyright_id":"0x765e6f1b6eae32352d2b42cfcec55b4a258ff65c086077792b8ce448e17282c8","name":"Leon Trout","registered_at":"2026-06-21T03:57:56Z","symbol":"NIM1812928","token_address":"0x4007456531dde625e674a0740cf8b8a922bedfda","type":"artist","uuid":"d928795c-ac36-4c80-a959-f2aca0743b89"}
album: It's About Time
  type: MusicAlbum
  date published: 2019-06-03
album: Trout Tapes Vol.I
  type: MusicAlbum
  date published: 2020-04-15
album: Live @ Nashua Center for the Arts
  type: MusicAlbum
  date published: 2023-05-29
album: Paradigm
  type: MusicAlbum
  date published: 2024-08-23