Nathan Kartak
type: MusicGroup
genre: vaporwave
popularity: 2
followers: 50
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3acf55409db35d9c412b6863ce891a03d9e74177c466aaf1aa856eccbebbe083
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953997
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953997
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/29497c12-cbfc-4eb3-ba36-23ac2cc6aef0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/29497c12-cbfc-4eb3-ba36-23ac2cc6aef0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/29497c12-cbfc-4eb3-ba36-23ac2cc6aef0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:07:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3acf55409db35d9c412b6863ce891a03d9e74177c466aaf1aa856eccbebbe083","name":"Nathan Kartak","registered_at":"2026-06-16T03:53:00Z","symbol":"NIM0929021","token_address":"0x9a1d1753f8635b1b7b1a6cf2e353c4ba22cf4208","type":"artist","uuid":"29497c12-cbfc-4eb3-ba36-23ac2cc6aef0"}
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 0x3acf55409db35d9c412b6863ce891a03d9e74177c466aaf1aa856eccbebbe083. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29497c12-cbfc-4eb3-ba36-23ac2cc6aef0.json and https://artists.proofprofile.net/proofs/artist/29497c12-cbfc-4eb3-ba36-23ac2cc6aef0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x3acf55409db35d9c412b6863ce891a03d9e74177c466aaf1aa856eccbebbe083","name":"Nathan Kartak","registered_at":"2026-06-16T03:53:00Z","symbol":"NIM0929021","token_address":"0x9a1d1753f8635b1b7b1a6cf2e353c4ba22cf4208","type":"artist","uuid":"29497c12-cbfc-4eb3-ba36-23ac2cc6aef0"}
album: In This Far Corner, Vol. 1
  type: MusicAlbum
  date published: 2018-03-05
album: In This Far Corner, Vol. 2
  type: MusicAlbum
  date published: 2023-04-24
album: BI-Tan's Original Soundtrack
  type: MusicAlbum
  date published: 2025-01-06
  track: The Backlogs
    type: MusicRecording
    duration: PT2M41S
    duration ms: 161311
    explicit: false
    by artist: Nathan Kartak
    in album: BI-Tan's Original Soundtrack
      type: MusicAlbum
      date published: 2025-01-06
    genre: vaporwave
    isrc code: QZFZ32508414
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T15:37:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x85b1b65e2b1f36f90fd2dab3ac332862af191a2768f6b04f3f73f695284e6637
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958749
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958749
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ32508414
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T15:48:23Z
    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 0x85b1b65e2b1f36f90fd2dab3ac332862af191a2768f6b04f3f73f695284e6637. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZFZ32508414.
      date published: 2026-07-19T15:48:23Z
    audio: The Backlogs
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 121.953
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.662
      additional property: Energy
        type: PropertyValue
        value: 0.516
      additional property: Speechiness
        type: PropertyValue
        value: 0.072
      additional property: Acousticness
        type: PropertyValue
        value: 0.116
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.898
      additional property: Liveness
        type: PropertyValue
        value: 0.103
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.442
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.601
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major