Jack Pfeffer
type: MusicGroup
popularity: 9
followers: 452
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x988ae3e8828605879689f6392803e1a1f9f1df6c17b7b304f81efa714e599030
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f8d86b58-3910-4c2b-aa7e-ab5b3103d61a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f8d86b58-3910-4c2b-aa7e-ab5b3103d61a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f8d86b58-3910-4c2b-aa7e-ab5b3103d61a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x988ae3e8828605879689f6392803e1a1f9f1df6c17b7b304f81efa714e599030","name":"Jack Pfeffer","registered_at":"2026-06-21T16:14:52Z","symbol":"NIM1971170","token_address":"0x1b2ad8b7d105c990ba34f81377d0ef8982c5da5c","type":"artist","uuid":"f8d86b58-3910-4c2b-aa7e-ab5b3103d61a"}
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 0x988ae3e8828605879689f6392803e1a1f9f1df6c17b7b304f81efa714e599030. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8d86b58-3910-4c2b-aa7e-ab5b3103d61a.json and https://artists.proofprofile.net/proofs/artist/f8d86b58-3910-4c2b-aa7e-ab5b3103d61a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0x988ae3e8828605879689f6392803e1a1f9f1df6c17b7b304f81efa714e599030","name":"Jack Pfeffer","registered_at":"2026-06-21T16:14:52Z","symbol":"NIM1971170","token_address":"0x1b2ad8b7d105c990ba34f81377d0ef8982c5da5c","type":"artist","uuid":"f8d86b58-3910-4c2b-aa7e-ab5b3103d61a"}
album: The Apartment
  type: MusicAlbum
  date published: 2017-05-19
album: Plastic Jacket
  type: MusicAlbum
  date published: 2017-05-20
album: With You
  type: MusicAlbum
  date published: 2017-12-27
album: The Apartment
  type: MusicAlbum
  date published: 2017-12-28
album: Plastic Jacket
  type: MusicAlbum
  date published: 2017-12-28
album: Blue Love
  type: MusicAlbum
  date published: 2018-04-06
album: Blue Love
  type: MusicAlbum
  date published: 2018-04-06
album: Night Drive
  type: MusicAlbum
  date published: 2018-10-31
album: All Alone Without U
  type: MusicAlbum
  date published: 2020-02-21
album: There You Are
  type: MusicAlbum
  date published: 2020-03-27
album: This Morning's Face
  type: MusicAlbum
  date published: 2020-08-28
album: Hold It Forever
  type: MusicAlbum
  date published: 2023-06-12
album: stinkbug (Over and Over)
  type: MusicAlbum
  date published: 2024-07-11
album: My phone
  type: MusicAlbum
  date published: 2025-06-16
  track: My phone
    type: MusicRecording
    duration: PT4M2S
    duration ms: 242373
    explicit: false
    by artist: Jack Pfeffer
    in album: My phone
      type: MusicAlbum
      date published: 2025-06-16
    isrc code: QZTAY2551201
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T14:12:22+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x63c25a8a484274222bf13ec7919a1f31a8a36f40d3b2582bd272b646366fc10b
    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/QZTAY2551201
    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 0x63c25a8a484274222bf13ec7919a1f31a8a36f40d3b2582bd272b646366fc10b. 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/QZTAY2551201.
      date published: 2026-07-18T19:27:02Z
    audio: My phone
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 161.703
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.678
      additional property: Energy
        type: PropertyValue
        value: 0.523
      additional property: Speechiness
        type: PropertyValue
        value: 0.051
      additional property: Acousticness
        type: PropertyValue
        value: 0.278
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.86
      additional property: Liveness
        type: PropertyValue
        value: 0.1
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.351
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.605
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major