Matt Martin
type: MusicGroup
popularity: 4
followers: 207
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2981c847f4aeeaa5c82f5e4ca7561e3322f1c39e2f3e244452fd6fbe38970000
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953954
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953954
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/264f4cd2-433b-4213-b0cf-1e8e40a64a12.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/264f4cd2-433b-4213-b0cf-1e8e40a64a12.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/264f4cd2-433b-4213-b0cf-1e8e40a64a12
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T14:18:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2981c847f4aeeaa5c82f5e4ca7561e3322f1c39e2f3e244452fd6fbe38970000","name":"Matt Martin","registered_at":"2026-06-16T02:53:43Z","symbol":"NIM0914866","token_address":"0x4a6bd96cfc01b2ad94bd5a360ed6d7639e099151","type":"artist","uuid":"264f4cd2-433b-4213-b0cf-1e8e40a64a12"}
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 0x2981c847f4aeeaa5c82f5e4ca7561e3322f1c39e2f3e244452fd6fbe38970000. Chain 2 (Bitcoin): anchored in block 953955 (2026-06-16T14:29:53Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/264f4cd2-433b-4213-b0cf-1e8e40a64a12.json and https://artists.proofprofile.net/proofs/artist/264f4cd2-433b-4213-b0cf-1e8e40a64a12.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T14:29:53Z
  text: {"copyright_id":"0x2981c847f4aeeaa5c82f5e4ca7561e3322f1c39e2f3e244452fd6fbe38970000","name":"Matt Martin","registered_at":"2026-06-16T02:53:43Z","symbol":"NIM0914866","token_address":"0x4a6bd96cfc01b2ad94bd5a360ed6d7639e099151","type":"artist","uuid":"264f4cd2-433b-4213-b0cf-1e8e40a64a12"}
album: Half Cracked
  type: MusicAlbum
  date published: 2024-07-26
album: Waste
  type: MusicAlbum
  date published: 2024-09-13
album: Jagged
  type: MusicAlbum
  date published: 2025-03-07
  track: Jagged
    type: MusicRecording
    duration: PT2M43S
    duration ms: 163988
    explicit: false
    by artist: Matt Martin
    in album: Jagged
      type: MusicAlbum
      date published: 2025-03-07
    isrc code: QZAKB2456973
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T20:58:46+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x61b0b4373707790545f48a1d8e32bbd1df7db19e29c5346dc9d5c590a21596fe
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958783
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958783
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2456973
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T00:00:47Z
    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 0x61b0b4373707790545f48a1d8e32bbd1df7db19e29c5346dc9d5c590a21596fe. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:00:47Z), 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/QZAKB2456973.
      date published: 2026-07-20T00:00:47Z
    audio: Jagged
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.052
      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: 0.642
      additional property: Energy
        type: PropertyValue
        value: 0.676
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.002
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.019
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.832
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.21
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major