Matthew Clarck
type: MusicGroup
popularity: 20
followers: 3076
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0fc62ceb7dda8376bd2f987f38c7dd9272e285aaf9f804eaca76c228533edf91
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953633
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953633
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/32fcd966-2cc5-4cd1-bb70-a15d3cdca747.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/32fcd966-2cc5-4cd1-bb70-a15d3cdca747.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/32fcd966-2cc5-4cd1-bb70-a15d3cdca747
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T12:47:11Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0fc62ceb7dda8376bd2f987f38c7dd9272e285aaf9f804eaca76c228533edf91","name":"Matthew Clarck","registered_at":"2026-06-14T09:46:38Z","symbol":"NIM0414410","token_address":"0x49c0855c0e3dc349eaae9d6b8e6d14e18cf08f1c","type":"artist","uuid":"32fcd966-2cc5-4cd1-bb70-a15d3cdca747"}
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 0x0fc62ceb7dda8376bd2f987f38c7dd9272e285aaf9f804eaca76c228533edf91. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32fcd966-2cc5-4cd1-bb70-a15d3cdca747.json and https://artists.proofprofile.net/proofs/artist/32fcd966-2cc5-4cd1-bb70-a15d3cdca747.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T12:47:11Z
  text: {"copyright_id":"0x0fc62ceb7dda8376bd2f987f38c7dd9272e285aaf9f804eaca76c228533edf91","name":"Matthew Clarck","registered_at":"2026-06-14T09:46:38Z","symbol":"NIM0414410","token_address":"0x49c0855c0e3dc349eaae9d6b8e6d14e18cf08f1c","type":"artist","uuid":"32fcd966-2cc5-4cd1-bb70-a15d3cdca747"}
album: Same Direction
  type: MusicAlbum
  date published: 2015-07-25
album: Pay Me Up
  type: MusicAlbum
  date published: 2017-03-10
album: Pay Me Up
  type: MusicAlbum
  date published: 2017-03-10
album: Monday
  type: MusicAlbum
  date published: 2018-03-26
album: Monday
  type: MusicAlbum
  date published: 2018-04-09
album: Right Here
  type: MusicAlbum
  date published: 2019-08-16
album: I Want More
  type: MusicAlbum
  date published: 2019-09-11
album: Babe
  type: MusicAlbum
  date published: 2019-09-27
album: Myself / 321
  type: MusicAlbum
  date published: 2019-10-04
album: Myself / 321
  type: MusicAlbum
  date published: 2019-10-04
album: Need It
  type: MusicAlbum
  date published: 2023-07-28
  track: Need It
    type: MusicRecording
    duration: PT3M12S
    duration ms: 192380
    explicit: false
    by artist: Matthew Clarck
    in album: Need It
      type: MusicAlbum
      date published: 2023-07-28
    isrc code: PLB382300317
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T14:32:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf0b813d25b1f9b87eda9d17df6b8f4b7b4515dc4738cf949f409454365f9fb29
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958601
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958601
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB382300317
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T19:27:02Z
    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 0xf0b813d25b1f9b87eda9d17df6b8f4b7b4515dc4738cf949f409454365f9fb29. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/PLB382300317.
      date published: 2026-07-18T19:27:02Z
    audio: Need It
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 126.018
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.609
      additional property: Energy
        type: PropertyValue
        value: 0.932
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.03
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.36
      additional property: Liveness
        type: PropertyValue
        value: 0.32
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.258
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.582
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: So Over You
  type: MusicAlbum
  date published: 2024-03-29
  track: So Over You - Extended Mix
    type: MusicRecording
    duration: PT4M14S
    duration ms: 254649
    explicit: false
    by artist: Matthew Clarck
    in album: So Over You
      type: MusicAlbum
      date published: 2024-03-29
    isrc code: CH7812405014
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T11:20:15+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xae9413e68734cc57848b0626e308e871eb50c73324bcdb2a1f8086e9ad3b2f2b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812405014
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0xae9413e68734cc57848b0626e308e871eb50c73324bcdb2a1f8086e9ad3b2f2b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CH7812405014.
      date published: 2026-07-05T01:12:41Z
    audio: So Over You - Extended Mix
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 122.999
      additional property: Musical Key
      additional property: Mode (Major/Minor)
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Your Love

Musical Key
type: PropertyValue
value: 8

Mode (Major/Minor)
type: PropertyValue
value: 1

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.751

Energy
type: PropertyValue
value: 0.797

Speechiness
type: PropertyValue
value: 0.051

Acousticness
type: PropertyValue
value: 0.001

Instrumentalness
type: PropertyValue
value: 0.005

Liveness
type: PropertyValue
value: 0.184

Valence (Positivity)
type: PropertyValue
value: 0.77

Loudness (dB)
type: PropertyValue
value: -4.676

Key Name
type: PropertyValue
value: Ab

Mode Name
type: PropertyValue
value: Major

Your Love
type: MusicAlbum
date published: 2024-07-26