Niña van Dijk
type: MusicGroup
popularity: 5
followers: 225
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3151171ca70d9519474b0c2ed3ae555af505fa2667d323d5b7ab9a1328c5df94
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954513
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9f2af4bb-db07-44c3-831f-95486e487e79.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9f2af4bb-db07-44c3-831f-95486e487e79.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9f2af4bb-db07-44c3-831f-95486e487e79
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T06:31:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3151171ca70d9519474b0c2ed3ae555af505fa2667d323d5b7ab9a1328c5df94","name":"Niña van Dijk","registered_at":"2026-06-20T05:10:13Z","symbol":"NIM1521483","token_address":"0x8d0407c0651377113e8392808241dfd472930cc2","type":"artist","uuid":"9f2af4bb-db07-44c3-831f-95486e487e79"}
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 0x3151171ca70d9519474b0c2ed3ae555af505fa2667d323d5b7ab9a1328c5df94. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9f2af4bb-db07-44c3-831f-95486e487e79.json and https://artists.proofprofile.net/proofs/artist/9f2af4bb-db07-44c3-831f-95486e487e79.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T06:31:18Z
  text: {"copyright_id":"0x3151171ca70d9519474b0c2ed3ae555af505fa2667d323d5b7ab9a1328c5df94","name":"Niña van Dijk","registered_at":"2026-06-20T05:10:13Z","symbol":"NIM1521483","token_address":"0x8d0407c0651377113e8392808241dfd472930cc2","type":"artist","uuid":"9f2af4bb-db07-44c3-831f-95486e487e79"}
album: Lost (From The Voice Of Holland 5)
  type: MusicAlbum
  date published: 2012-11-10
album: Lost
  type: MusicAlbum
  date published: 2012-11-10
album: Tussen de sterren
  type: MusicAlbum
  date published: 2022-04-08
  track: Tussen de sterren
    type: MusicRecording
    duration: PT3M27S
    duration ms: 207460
    explicit: false
    by artist: Niña van Dijk
    in album: Tussen de sterren
      type: MusicAlbum
      date published: 2022-04-08
    isrc code: NLMY92200001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-02T21:37:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x48e7925c63151a858e297106f83c38d7429d7447152e1afe0e3a151bb97d430f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956420
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956420
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLMY92200001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T03:44:36Z
    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 0x48e7925c63151a858e297106f83c38d7429d7447152e1afe0e3a151bb97d430f. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T03:44:36Z), 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/NLMY92200001.
      date published: 2026-07-17T03:44:36Z
    audio: Tussen de sterren
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 74.88
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.644
      additional property: Energy
        type: PropertyValue
        value: 0.294
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.851
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.064
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.209
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.242
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major