Pen Friend
type: MusicGroup
genre: synthwave
popularity: 4
followers: 286
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbbd1d162fa9ec52f2d63db9eebcd75f09bf659297ba3a441ffabd1deb2905fd3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954569
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954569
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b1258f94-a1d5-4f2c-881d-51ca7df1b0b1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b1258f94-a1d5-4f2c-881d-51ca7df1b0b1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b1258f94-a1d5-4f2c-881d-51ca7df1b0b1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T14:36:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbbd1d162fa9ec52f2d63db9eebcd75f09bf659297ba3a441ffabd1deb2905fd3","name":"Pen Friend","registered_at":"2026-06-20T12:13:07Z","symbol":"NIM1610033","token_address":"0xe55f45a7f24f1bac12a4d4ea7d5447ee9953bbf3","type":"artist","uuid":"b1258f94-a1d5-4f2c-881d-51ca7df1b0b1"}
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 0xbbd1d162fa9ec52f2d63db9eebcd75f09bf659297ba3a441ffabd1deb2905fd3. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b1258f94-a1d5-4f2c-881d-51ca7df1b0b1.json and https://artists.proofprofile.net/proofs/artist/b1258f94-a1d5-4f2c-881d-51ca7df1b0b1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T14:36:29Z
  text: {"copyright_id":"0xbbd1d162fa9ec52f2d63db9eebcd75f09bf659297ba3a441ffabd1deb2905fd3","name":"Pen Friend","registered_at":"2026-06-20T12:13:07Z","symbol":"NIM1610033","token_address":"0xe55f45a7f24f1bac12a4d4ea7d5447ee9953bbf3","type":"artist","uuid":"b1258f94-a1d5-4f2c-881d-51ca7df1b0b1"}
album: Transmyth
  type: MusicAlbum
  date published: 2020-09-16
album: Orbits
  type: MusicAlbum
  date published: 2020-12-16
album: Transmyth
  type: MusicAlbum
  date published: 2020-12-16
album: Parachute
  type: MusicAlbum
  date published: 2020-12-16
album: Avenew
  type: MusicAlbum
  date published: 2020-12-16
album: Parachute
  type: MusicAlbum
  date published: 2021-03-03
album: Avenew
  type: MusicAlbum
  date published: 2021-03-03
album: Parachute
  type: MusicAlbum
  date published: 2021-03-04
album: Avenew
  type: MusicAlbum
  date published: 2021-05-03
album: Orbits
  type: MusicAlbum
  date published: 2021-06-14
album: Orbits
  type: MusicAlbum
  date published: 2021-06-14
  track: Orbits
    type: MusicRecording
    duration: PT2M39S
    duration ms: 159337
    explicit: false
    by artist: Pen Friend
    in album: Orbits
      type: MusicAlbum
      date published: 2021-06-14
    genre: synthwave
    isrc code: GBRKQ2100761
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T02:55:22+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x87a19cec6a7da2988b172b093d3b3b782c1804b4fb9286388089386e9cc35823
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958955
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958955
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBRKQ2100761
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T03:03:40Z
    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 0x87a19cec6a7da2988b172b093d3b3b782c1804b4fb9286388089386e9cc35823. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/GBRKQ2100761.
      date published: 2026-07-21T03:03:40Z
    audio: Orbits
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 199.971
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.468
      additional property: Energy
        type: PropertyValue
        value: 0.814
      additional property: Speechiness
        type: PropertyValue
        value: 0.051
      additional property: Acousticness
        type: PropertyValue
        value: 0.024
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.908
      additional property: Liveness
        type: PropertyValue
        value: 0.138
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.344
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.251
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Orbits
  type: MusicAlbum
  date published: 2021-06-14