Mark Halliwell
type: MusicGroup
popularity: 6
followers: 74
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x47d67be86a4e286c17fb00cea6027d0aed0efba1bb77c9eb7fd751de063ee098
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953984
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953984
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2d41d5fe-53c3-486d-b55f-41b93b673852.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2d41d5fe-53c3-486d-b55f-41b93b673852.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2d41d5fe-53c3-486d-b55f-41b93b673852
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T18:08:34Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x47d67be86a4e286c17fb00cea6027d0aed0efba1bb77c9eb7fd751de063ee098","name":"Mark Halliwell","registered_at":"2026-06-16T05:25:14Z","symbol":"NIM0951060","token_address":"0x824fce54879e83b8cabd68f6be2ce51ac1f578d4","type":"artist","uuid":"2d41d5fe-53c3-486d-b55f-41b93b673852"}
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 0x47d67be86a4e286c17fb00cea6027d0aed0efba1bb77c9eb7fd751de063ee098. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d41d5fe-53c3-486d-b55f-41b93b673852.json and https://artists.proofprofile.net/proofs/artist/2d41d5fe-53c3-486d-b55f-41b93b673852.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x47d67be86a4e286c17fb00cea6027d0aed0efba1bb77c9eb7fd751de063ee098","name":"Mark Halliwell","registered_at":"2026-06-16T05:25:14Z","symbol":"NIM0951060","token_address":"0x824fce54879e83b8cabd68f6be2ce51ac1f578d4","type":"artist","uuid":"2d41d5fe-53c3-486d-b55f-41b93b673852"}
album: Trips of the Trade
  type: MusicAlbum
  date published: 2003-07-14
album: Disjointed Themes
  type: MusicAlbum
  date published: 2004-11-01
album: April Evening/Ballad of Resolve - EP
  type: MusicAlbum
  date published: 2006-12-28
album: Aural Sculpture, Vol.1
  type: MusicAlbum
  date published: 2007-05-02
album: Awaken from a Coloured Daydream
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  date published: 2009-06-22
album: Guitar Suite in the Key of Enlightenment
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  date published: 2012-12-02
album: Intuitive Logic
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  date published: 2015-07-07
album: The Subjective Noise Particle
  type: MusicAlbum
  date published: 2019-09-18
album: Respite in Solitude - EP
  type: MusicAlbum
  date published: 2020-09-28
album: Valorem Intrinsecum
  type: MusicAlbum
  date published: 2022-12-02
album: Days of Circumspect (Alternate Take)
  type: MusicAlbum
  date published: 2023-09-22
album: The Hitman (Extended Version)
  type: MusicAlbum
  date published: 2023-12-12
album: Way Out West (2024 Mix)
  type: MusicAlbum
  date published: 2024-05-22
album: M.D.M.
  type: MusicAlbum
  date published: 2024-08-23
album: Suite Fur Sophie
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  type: MusicAlbum
  date published: 2025-10-02