Niel Hupkes
type: MusicGroup
popularity: 31
followers: 401
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5f30b990287755ed453917edeb68838824538677e71b3010f94ae02a6edae448
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/efe47ec5-48c7-4e2d-a63a-bf319fb60db7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/efe47ec5-48c7-4e2d-a63a-bf319fb60db7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/efe47ec5-48c7-4e2d-a63a-bf319fb60db7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5f30b990287755ed453917edeb68838824538677e71b3010f94ae02a6edae448","name":"Niel Hupkes","registered_at":"2026-06-12T13:17:06Z","symbol":"NIM0309140","token_address":"0xdfe2662a2896a52b2db700b7f9df2566b0f97ec4","type":"artist","uuid":"efe47ec5-48c7-4e2d-a63a-bf319fb60db7"}
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 0x5f30b990287755ed453917edeb68838824538677e71b3010f94ae02a6edae448. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/efe47ec5-48c7-4e2d-a63a-bf319fb60db7.json and https://artists.proofprofile.net/proofs/artist/efe47ec5-48c7-4e2d-a63a-bf319fb60db7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x5f30b990287755ed453917edeb68838824538677e71b3010f94ae02a6edae448","name":"Niel Hupkes","registered_at":"2026-06-12T13:17:06Z","symbol":"NIM0309140","token_address":"0xdfe2662a2896a52b2db700b7f9df2566b0f97ec4","type":"artist","uuid":"efe47ec5-48c7-4e2d-a63a-bf319fb60db7"}
album: Nog een nacht
  type: MusicAlbum
  date published: 2019-06-14
album: Dromen over jou
  type: MusicAlbum
  date published: 2020-03-06
album: Volg mij
  type: MusicAlbum
  date published: 2020-09-04
  track: Volg mij
    type: MusicRecording
    duration: PT3M27S
    duration ms: 207500
    explicit: false
    by artist: Niel Hupkes
    in album: Volg mij
      type: MusicAlbum
      date published: 2020-09-04
    isrc code: SE5W32015102
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T13:44:19+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8fcd0b38bc52aa9794da0a90351132405389a76d7bcf4d403fcd6502bde8391b
    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/SE5W32015102
    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 0x8fcd0b38bc52aa9794da0a90351132405389a76d7bcf4d403fcd6502bde8391b. 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/SE5W32015102.
      date published: 2026-07-18T19:27:02Z
    audio: Volg mij
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 73.354
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.169
      additional property: Energy
        type: PropertyValue
        value: 0.01
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.969
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.86
      additional property: Liveness
        type: PropertyValue
        value: 0.106
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.107
      additional property: Loudness (dB)
        type: PropertyValue
        value: -35.981
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Houd me vast
  type: MusicAlbum
  date published: 2021-04-09
album: In een ander leven
  type: MusicAlbum
  date published: 2022-02-11
album: Laten gaan
  type: MusicAlbum
  date published: 2023-01-20