Nienke Wijnhoven
type: MusicGroup
popularity: 4
followers: 933
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8ca8ec86fd1d345cf76ed69300277ceff4eca00c00042827c3306fefd5456e07
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e947b066-56a8-4d48-a58f-2d9d137b271b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e947b066-56a8-4d48-a58f-2d9d137b271b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e947b066-56a8-4d48-a58f-2d9d137b271b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8ca8ec86fd1d345cf76ed69300277ceff4eca00c00042827c3306fefd5456e07","name":"Nienke Wijnhoven","registered_at":"2026-06-21T10:21:38Z","symbol":"NIM1897583","token_address":"0x3b4b438159ca555b3849e660e679d1313599dadb","type":"artist","uuid":"e947b066-56a8-4d48-a58f-2d9d137b271b"}
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 0x8ca8ec86fd1d345cf76ed69300277ceff4eca00c00042827c3306fefd5456e07. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e947b066-56a8-4d48-a58f-2d9d137b271b.json and https://artists.proofprofile.net/proofs/artist/e947b066-56a8-4d48-a58f-2d9d137b271b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x8ca8ec86fd1d345cf76ed69300277ceff4eca00c00042827c3306fefd5456e07","name":"Nienke Wijnhoven","registered_at":"2026-06-21T10:21:38Z","symbol":"NIM1897583","token_address":"0x3b4b438159ca555b3849e660e679d1313599dadb","type":"artist","uuid":"e947b066-56a8-4d48-a58f-2d9d137b271b"}
album: The Power Of Love (The Voice Of Holland Season 8)
  type: MusicAlbum
  date published: 2017-12-01
album: The Power Of Love (The Voice Of Holland Season 8)
  type: MusicAlbum
  date published: 2017-12-02
  track: The Power Of Love - The Voice Of Holland Season 8
    type: MusicRecording
    duration: PT3M25S
    duration ms: 205629
    explicit: false
    by artist: Nienke Wijnhoven
    in album: The Power Of Love (The Voice Of Holland Season 8)
      type: MusicAlbum
      date published: 2017-12-02
    isrc code: NLZ291700422
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T17:15:42+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8fed0d84d445673ce8c12e2a24fb4813485531e7cbf9858a72a3d6608ce9a8ce
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958761
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958761
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLZ291700422
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T20:18:18Z
    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 0x8fed0d84d445673ce8c12e2a24fb4813485531e7cbf9858a72a3d6608ce9a8ce. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:18:18Z), 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/NLZ291700422.
      date published: 2026-07-19T20:18:18Z
    audio: The Power Of Love - The Voice Of Holland Season 8
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 139.98
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.525
      additional property: Energy
        type: PropertyValue
        value: 0.468
      additional property: Speechiness
        type: PropertyValue
        value: 0.027
      additional property: Acousticness
        type: PropertyValue
        value: 0.395
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.115
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.191
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.005
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: The Power Of Love (From The Voice Of Holland Season 8)
  type: MusicAlbum
  date published: 2017-12-02
album: Paint It Black (From The Voice Of Holland Season 8)
  type: MusicAlbum
  date published: 2018-01-26
album: Paint It Black (The Voice Of Holland Season 8)
  type: MusicAlbum
  date published: 2018-01-26
album: Angel (The Voice Of Holland Season 8)
  type: MusicAlbum
  date published: 2018-02-02
album: Angel (From The Voice Of Holland Season 8)
  type: MusicAlbum
  date published: 2018-02-02
album: One Last Time (From The Voice Of Holland Season 8)
  type: MusicAlbum
  date published: 2018-02-09
album: Let It Go (From The Voice Of Holland Season 8)
  type: MusicAlbum
  date published: 2018-02-09
album: One Last Time (The Voice Of Holland Season 8)
  type: MusicAlbum
  date published: 2018-02-09
album: Let It Go (The Voice Of Holland Season 8)
  type: MusicAlbum
  date published: 2018-02-09
album: Ex's and Oh's (The Voice Of Holland Season 8)
  type: MusicAlbum
  date published: 2018-02-16
album: Ex's and Oh's (From The Voice Of Holland Season 8)
  type: MusicAlbum
  date published: 2018-02-16
album: Mad World
  type: MusicAlbum
  date published: 2021-01-29
album: Always on my Mind
  type: MusicAlbum
  date published: 2021-02-18
album: Why
  type: MusicAlbum
  date published: 2021-08-11
album: Do you miss me
  type: MusicAlbum
  date published: 2022-05-24
album: When I Needed You So
  type: MusicAlbum
  date published: 2024-05-01