Jack Walker
type: MusicGroup
description: Jack Walker (19 May 1929 – 17 August 2000) was a British industrialist and businessman. Walker built his fortune in the steel industry, amassing a personal fortune of £600 million. He then went on
popularity: 3
followers: 128
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x30c5b9dfe00db6eaba1acfc300d966a5430b129714ddb13b686d6e5436e4fc8d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e6df1b1b-f998-46a6-a7bd-ca238b1d1c98.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e6df1b1b-f998-46a6-a7bd-ca238b1d1c98.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e6df1b1b-f998-46a6-a7bd-ca238b1d1c98
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x30c5b9dfe00db6eaba1acfc300d966a5430b129714ddb13b686d6e5436e4fc8d","name":"Jack Walker","registered_at":"2026-06-21T09:03:00Z","symbol":"NIM1879376","token_address":"0x640a5fbc6b2c67105346ba698e6eca0605a7e46b","type":"artist","uuid":"e6df1b1b-f998-46a6-a7bd-ca238b1d1c98"}
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 0x30c5b9dfe00db6eaba1acfc300d966a5430b129714ddb13b686d6e5436e4fc8d. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e6df1b1b-f998-46a6-a7bd-ca238b1d1c98.json and https://artists.proofprofile.net/proofs/artist/e6df1b1b-f998-46a6-a7bd-ca238b1d1c98.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0x30c5b9dfe00db6eaba1acfc300d966a5430b129714ddb13b686d6e5436e4fc8d","name":"Jack Walker","registered_at":"2026-06-21T09:03:00Z","symbol":"NIM1879376","token_address":"0x640a5fbc6b2c67105346ba698e6eca0605a7e46b","type":"artist","uuid":"e6df1b1b-f998-46a6-a7bd-ca238b1d1c98"}
album: I Wonder What I'll Dream of Tonight
  type: MusicAlbum
  date published: 2016-12-25
album: The Animal Song
  type: MusicAlbum
  date published: 2020-06-26
album: Silver & Gold
  type: MusicAlbum
  date published: 2020-07-23
album: Dance for the Moon
  type: MusicAlbum
  date published: 2020-10-23
album: Mean Woman
  type: MusicAlbum
  date published: 2020-12-18
album: The Poet & the Painter
  type: MusicAlbum
  date published: 2021-03-26
album: Jack Walker
  type: MusicAlbum
  date published: 2021-06-11
album: Everything Is Falling Into Place
  type: MusicAlbum
  date published: 2024-07-01
album: I Love the Way You Love
  type: MusicAlbum
  date published: 2025-05-02