Matt Grenfell
type: MusicGroup
popularity: 5
followers: 54
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe7399dc532ea05239bf9327a98d84d010b5afa24bac70f322135046b8c4161a5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6791899f-dd10-4cbc-95b2-ed94096f08b2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6791899f-dd10-4cbc-95b2-ed94096f08b2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6791899f-dd10-4cbc-95b2-ed94096f08b2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe7399dc532ea05239bf9327a98d84d010b5afa24bac70f322135046b8c4161a5","name":"Matt Grenfell","registered_at":"2026-06-17T01:42:37Z","symbol":"NIM1241541","token_address":"0xd16997ffab093cb3459a7f947a78f3437f02bd76","type":"artist","uuid":"6791899f-dd10-4cbc-95b2-ed94096f08b2"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7399dc532ea05239bf9327a98d84d010b5afa24bac70f322135046b8c4161a5. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6791899f-dd10-4cbc-95b2-ed94096f08b2.json and https://artists.proofprofile.net/proofs/artist/6791899f-dd10-4cbc-95b2-ed94096f08b2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xe7399dc532ea05239bf9327a98d84d010b5afa24bac70f322135046b8c4161a5","name":"Matt Grenfell","registered_at":"2026-06-17T01:42:37Z","symbol":"NIM1241541","token_address":"0xd16997ffab093cb3459a7f947a78f3437f02bd76","type":"artist","uuid":"6791899f-dd10-4cbc-95b2-ed94096f08b2"}
album: Playing the Fool (2024 Remaster)
  type: MusicAlbum
  date published: 2023-08-16
  track: Playing the Fool (2024 Remaster)
    type: MusicRecording
    duration: PT3M24S
    duration ms: 204656
    explicit: false
    by artist: Matt Grenfell
    in album: Playing the Fool (2024 Remaster)
      type: MusicAlbum
      date published: 2023-08-16
    isrc code: TCAIA2403328
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T15:51:00+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xad38a067faaf9a9bed55f87de26c72b0254f25d4eb33d542096b944928d66c2f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958169
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958169
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAIA2403328
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T16:16:18Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad38a067faaf9a9bed55f87de26c72b0254f25d4eb33d542096b944928d66c2f. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/TCAIA2403328.
      date published: 2026-07-15T16:16:18Z
    audio: Playing the Fool (2024 Remaster)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 80.141
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.585
      additional property: Energy
        type: PropertyValue
        value: 0.631
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.219
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.159
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.337
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.163
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Unfinished Basement
  type: MusicAlbum
  date published: 2023-08-16
album: New Chapter
  type: MusicAlbum
  date published: 2024-08-02
album: Harvested Art
  type: MusicAlbum
  date published: 2024-10-25
album: Monochrome
  type: MusicAlbum
  date published: 2025-08-22