Matthew Harwood
type: MusicGroup
popularity: 10
followers: 312
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x750455fefea4cfc9e431559df001ef55dfa83ad327a934d9d2b112d7a252ca0f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/82b6ed33-0e97-4dc5-af87-cbcc001e26ae.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/82b6ed33-0e97-4dc5-af87-cbcc001e26ae.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/82b6ed33-0e97-4dc5-af87-cbcc001e26ae
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x750455fefea4cfc9e431559df001ef55dfa83ad327a934d9d2b112d7a252ca0f","name":"Matthew Harwood","registered_at":"2026-06-17T11:03:03Z","symbol":"NIM1375213","token_address":"0xe0acde931a67675fac5359f42e0c7da19c2dac17","type":"artist","uuid":"82b6ed33-0e97-4dc5-af87-cbcc001e26ae"}
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 0x750455fefea4cfc9e431559df001ef55dfa83ad327a934d9d2b112d7a252ca0f. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/82b6ed33-0e97-4dc5-af87-cbcc001e26ae.json and https://artists.proofprofile.net/proofs/artist/82b6ed33-0e97-4dc5-af87-cbcc001e26ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x750455fefea4cfc9e431559df001ef55dfa83ad327a934d9d2b112d7a252ca0f","name":"Matthew Harwood","registered_at":"2026-06-17T11:03:03Z","symbol":"NIM1375213","token_address":"0xe0acde931a67675fac5359f42e0c7da19c2dac17","type":"artist","uuid":"82b6ed33-0e97-4dc5-af87-cbcc001e26ae"}
album: Frontlines: Fuel of War (Original Game Soundtrack)
  type: MusicAlbum
  date published: 2008
album: Frontlines: Fuel of War (Official Soundtrack)
  type: MusicAlbum
  date published: 2008
album: Frontlines: Fuel of War (Official Soundtrack)
  type: MusicAlbum
  date published: 2008-01-01
album: Escape (From "Homefront") - Itunes Ringtone
  type: MusicAlbum
  date published: 2011
album: Parking Lot Fight (From "Homefront") - Itunes Ringtone
  type: MusicAlbum
  date published: 2011
album: Golden Gate (From "Homefront") - Itunes Ringtone
  type: MusicAlbum
  date published: 2011
album: Good by Boone (From "Homefront") - Itunes Ringtone
  type: MusicAlbum
  date published: 2011
album: Oasis (From "Homefront") - Itunes Ringtone
  type: MusicAlbum
  date published: 2011
album: Goliath (From "Homefront") - Itunes Ringtone
  type: MusicAlbum
  date published: 2011
album: Lobby (From "Homefront") - Itunes Ringtone
  type: MusicAlbum
  date published: 2011
album: The Drop Off (From "Homefront") - Itunes Ringtone
  type: MusicAlbum
  date published: 2011
album: Main Theme (From "Homefront") - Itunes Ringtone
  type: MusicAlbum
  date published: 2011
album: Cul De Sac (From "Homefront") - Itunes Ringtone
  type: MusicAlbum
  date published: 2011
album: Homefront (Original Soundtrack)
  type: MusicAlbum
  date published: 2011
album: Homefront (Original Soundtrack)
  type: MusicAlbum
  date published: 2011-01-01
album: Homefront (Original Game Soundtrack)
  type: MusicAlbum
  date published: 2011-02-14
album: Homefront (Original Soundtrack)
  type: MusicAlbum
  date published: 2011-03-08
album: Homefront (Original Soundtrack)
  type: MusicAlbum
  date published: 2011-03-08
album: Infinite Crisis: Official Video Game Soundtrack
  type: MusicAlbum
  date published: 2015-03-26
album: Infinite Crisis (Official Video Game Soundtrack)
  type: MusicAlbum
  date published: 2015-03-26
album: Runner3 (Official Soundtrack)
  type: MusicAlbum
  date published: 2018-05-15
  track: Gears for Fears
    type: MusicRecording
    duration: PT2M39S
    duration ms: 159143
    explicit: false
    by artist: Matthew Harwood
    in album: Runner3 (Official Soundtrack)
      type: MusicAlbum
      date published: 2018-05-15
    isrc code: USDY41816957
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T03:57:06+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7f9ddda9a4fc94c0aec42f206436ae9ad9c1b3cbf80d8311e6d9e5ebc4c51e71
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958658
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958658
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41816957
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T04:09:09Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9ddda9a4fc94c0aec42f206436ae9ad9c1b3cbf80d8311e6d9e5ebc4c51e71. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41816957.
      date published: 2026-07-19T04:09:09Z
    audio: Gears for Fears
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 159.984
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.537
      additional property: Energy
        type: PropertyValue
        value: 0.94
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.016
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.727
      additional property: Liveness
        type: PropertyValue
        value: 0.227
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.653
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.497
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: BIT.TRIP RERUNNER (Original Soundtrack)
  type: MusicAlbum
  date published: 2023-10-10