J Matthew
type: MusicGroup
popularity: 7
followers: 1925
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3fb8921273583541cfccbf364e32b21fb16ecaf02e6a4bacda57184ed51dd3a9
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/62e0c5ff-108f-4f92-b6ec-7c2733f6f923.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/62e0c5ff-108f-4f92-b6ec-7c2733f6f923.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/62e0c5ff-108f-4f92-b6ec-7c2733f6f923
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3fb8921273583541cfccbf364e32b21fb16ecaf02e6a4bacda57184ed51dd3a9","name":"J Matthew","registered_at":"2026-06-17T00:06:33Z","symbol":"NIM1218623","token_address":"0x96b6101c6a66806c793080e1dc1353696c8ee212","type":"artist","uuid":"62e0c5ff-108f-4f92-b6ec-7c2733f6f923"}
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 0x3fb8921273583541cfccbf364e32b21fb16ecaf02e6a4bacda57184ed51dd3a9. 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/62e0c5ff-108f-4f92-b6ec-7c2733f6f923.json and https://artists.proofprofile.net/proofs/artist/62e0c5ff-108f-4f92-b6ec-7c2733f6f923.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x3fb8921273583541cfccbf364e32b21fb16ecaf02e6a4bacda57184ed51dd3a9","name":"J Matthew","registered_at":"2026-06-17T00:06:33Z","symbol":"NIM1218623","token_address":"0x96b6101c6a66806c793080e1dc1353696c8ee212","type":"artist","uuid":"62e0c5ff-108f-4f92-b6ec-7c2733f6f923"}
album: Human Nature
  type: MusicAlbum
  date published: 2016-09-03
album: All I Want
  type: MusicAlbum
  date published: 2020-08-07
album: The Demo
  type: MusicAlbum
  date published: 2020-09-25
album: McLovin
  type: MusicAlbum
  date published: 2021-02-18
album: No Lockdown
  type: MusicAlbum
  date published: 2021-10-15
album: I Miss Her
  type: MusicAlbum
  date published: 2022-01-14
album: A House Is Not a Home
  type: MusicAlbum
  date published: 2022-05-18
  track: A House Is Not a Home
    type: MusicRecording
    duration: PT2M22S
    duration ms: 142333
    explicit: false
    by artist: J Matthew
    in album: A House Is Not a Home
      type: MusicAlbum
      date published: 2022-05-18
    isrc code: TCAGC2295825
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-13T17:27:20+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe67b0c568d57f46426cda91d6dbdf48f2f98dc3225b178e51793848f4cf96382
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957891
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957891
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGC2295825
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-13T18:21:04Z
    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 0xe67b0c568d57f46426cda91d6dbdf48f2f98dc3225b178e51793848f4cf96382. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TCAGC2295825.
      date published: 2026-07-13T18:21:04Z
    audio: A House Is Not a Home
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 74.889
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.657
      additional property: Energy
        type: PropertyValue
        value: 0.337
      additional property: Speechiness
        type: PropertyValue
        value: 0.153
      additional property: Acousticness
        type: PropertyValue
        value: 0.573
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.121
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.368
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.934
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: No Lockdown - EP
  type: MusicAlbum
  date published: 2022-06-03
album: Feelings
  type: MusicAlbum
  date published: 2022-09-23
album: Benz a Photo
  type: MusicAlbum
  date published: 2022-11-18
album: Late
  type: MusicAlbum
  date published: 2022-12-16
album: Best Friends
  type: MusicAlbum
  date published: 2023-05-05
album: No Rush
  type: MusicAlbum
  date published: 2023-05-19
album: Ask About Me
  type: MusicAlbum
  date published: 2023-06-30
album: Divine
  type: MusicAlbum
  date published: 2023-11-14
album: Red Jasper
  type: MusicAlbum
  date published: 2023-11-28
album: Scarborough Blues
  type: MusicAlbum
  date published: 2023-12-12
album: Scarborough Blues
  type: MusicAlbum
  date published: 2023-12-12
album: Booty Bouncin'
  type: MusicAlbum
  date published: 2024-02-12
album: You're My Heart
  type: MusicAlbum
  date published: 2024-02-14
album: Virginia Beach
  type: MusicAlbum
  date published: 2024-05-03
album: Dawg
  type: MusicAlbum
  date published: 2024-06-21
album: Heartlines
  type: MusicAlbum
  date published: 2024-09-27
album: Live up to My Name
  type: MusicAlbum
  date published: 2024-10-25
album: 007
  type: MusicAlbum
  date published: 2025-09-26
album: Creepin'
  type: MusicAlbum
  date published: 2025-10-24