John Hackett
type: MusicGroup
genre: progressive rock
popularity: 9
followers: 804
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf6c2f2349fba64202e64ed4cd462a27a79925f17d26006034c3feebcc0856ad0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f0ce2f8d-4cec-43c2-a8e8-9929450fdbc8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f0ce2f8d-4cec-43c2-a8e8-9929450fdbc8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f0ce2f8d-4cec-43c2-a8e8-9929450fdbc8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf6c2f2349fba64202e64ed4cd462a27a79925f17d26006034c3feebcc0856ad0","name":"John Hackett","registered_at":"2026-06-21T12:43:24Z","symbol":"NIM1926427","token_address":"0x551c3b7a69f3f3cf43b4a2521c839cd0ad79001e","type":"artist","uuid":"f0ce2f8d-4cec-43c2-a8e8-9929450fdbc8"}
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 0xf6c2f2349fba64202e64ed4cd462a27a79925f17d26006034c3feebcc0856ad0. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f0ce2f8d-4cec-43c2-a8e8-9929450fdbc8.json and https://artists.proofprofile.net/proofs/artist/f0ce2f8d-4cec-43c2-a8e8-9929450fdbc8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0xf6c2f2349fba64202e64ed4cd462a27a79925f17d26006034c3feebcc0856ad0","name":"John Hackett","registered_at":"2026-06-21T12:43:24Z","symbol":"NIM1926427","token_address":"0x551c3b7a69f3f3cf43b4a2521c839cd0ad79001e","type":"artist","uuid":"f0ce2f8d-4cec-43c2-a8e8-9929450fdbc8"}
album: Velvet Afternoon
  type: MusicAlbum
  date published: 2004-06-01
album: Prelude to Summer
  type: MusicAlbum
  date published: 2008-03-11
album: Beyond the Stars
  type: MusicAlbum
  date published: 2009-12-15
album: Moonspinner
  type: MusicAlbum
  date published: 2011-10-24
album: Another Life
  type: MusicAlbum
  date published: 2015-09-25
album: Another Life
  type: MusicAlbum
  date published: 2015-09-25
album: Air & Grace : Relaxing Music for Flute
  type: MusicAlbum
  date published: 2017-02-10
album: Beyond the Stars
  type: MusicAlbum
  date published: 2018-10-12
album: On the Wings of the Wind
  type: MusicAlbum
  date published: 2019-07-05
album: On the Wings of the Wind
  type: MusicAlbum
  date published: 2019-07-05