Mat Lee
type: MusicGroup
popularity: 5
followers: 132
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x37ac3987006135708bbcf216f047c639585c63ec25415b7984f6e186dd15ede9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954513
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9fac4052-040c-4052-81ec-9d35eefb69e8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9fac4052-040c-4052-81ec-9d35eefb69e8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9fac4052-040c-4052-81ec-9d35eefb69e8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T06:31:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x37ac3987006135708bbcf216f047c639585c63ec25415b7984f6e186dd15ede9","name":"Mat Lee","registered_at":"2026-06-20T05:14:38Z","symbol":"NIM1522931","token_address":"0x383dbdb539562cc653928032e031472d413b51a5","type":"artist","uuid":"9fac4052-040c-4052-81ec-9d35eefb69e8"}
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 0x37ac3987006135708bbcf216f047c639585c63ec25415b7984f6e186dd15ede9. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9fac4052-040c-4052-81ec-9d35eefb69e8.json and https://artists.proofprofile.net/proofs/artist/9fac4052-040c-4052-81ec-9d35eefb69e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T06:31:18Z
  text: {"copyright_id":"0x37ac3987006135708bbcf216f047c639585c63ec25415b7984f6e186dd15ede9","name":"Mat Lee","registered_at":"2026-06-20T05:14:38Z","symbol":"NIM1522931","token_address":"0x383dbdb539562cc653928032e031472d413b51a5","type":"artist","uuid":"9fac4052-040c-4052-81ec-9d35eefb69e8"}
album: The Chthonic Chronicles (The Palici Presents)
  type: MusicAlbum
  date published: 2014-10-22
album: Project LD 50
  type: MusicAlbum
  date published: 2016-01-04
  track: 7th Day
    type: MusicRecording
    duration: PT0M35S
    duration ms: 35250
    explicit: false
    by artist: Mat Lee
    in album: Project LD 50
      type: MusicAlbum
      date published: 2016-01-04
    isrc code: USHM81586698
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T03:32:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x51504b5045bd262d3f5b5eabfcdf8133d1969960aaebdd15d354197207749532
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956474
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956474
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81586698
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T08:56:35Z
    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 0x51504b5045bd262d3f5b5eabfcdf8133d1969960aaebdd15d354197207749532. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USHM81586698.
      date published: 2026-07-03T08:56:35Z
    audio: 7th Day
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 163.776
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.759
      additional property: Energy
        type: PropertyValue
        value: 0.812
      additional property: Speechiness
        type: PropertyValue
        value: 0.256
      additional property: Acousticness
        type: PropertyValue
        value: 0.472
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.422
      additional property: Liveness
        type: PropertyValue
        value: 0.148
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.729
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.165
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Projekt Smokalot
  type: MusicAlbum
  date published: 2019-01-01
album: Plan B
  type: MusicAlbum
  date published: 2019-12-13
album: Virus Diaries
  type: MusicAlbum
  date published: 2020-06-08
album: Project Survival
  type: MusicAlbum
  date published: 2021-02-22
album: We Are the Mutantz
  type: MusicAlbum
  date published: 2022-04-20
album: End of an Era
  type: MusicAlbum
  date published: 2025-01-11