Het Universumpje
type: MusicGroup
popularity: 8
followers: 610
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf67703dbcec16cd4b40f5183d32db89d4727e5c938db6f27455da81e5ea0caf8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953877
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953877
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/03a9fad3-c543-4d6b-9e58-1566c1a2cb93.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/03a9fad3-c543-4d6b-9e58-1566c1a2cb93.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/03a9fad3-c543-4d6b-9e58-1566c1a2cb93
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:39:16Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf67703dbcec16cd4b40f5183d32db89d4727e5c938db6f27455da81e5ea0caf8","name":"Het Universumpje","registered_at":"2026-06-15T14:54:39Z","symbol":"NIM0743247","token_address":"0x6212f08bac9a16abc23391fec6dd37da8d6d534d","type":"artist","uuid":"03a9fad3-c543-4d6b-9e58-1566c1a2cb93"}
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 0xf67703dbcec16cd4b40f5183d32db89d4727e5c938db6f27455da81e5ea0caf8. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/03a9fad3-c543-4d6b-9e58-1566c1a2cb93.json and https://artists.proofprofile.net/proofs/artist/03a9fad3-c543-4d6b-9e58-1566c1a2cb93.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:39:16Z
  text: {"copyright_id":"0xf67703dbcec16cd4b40f5183d32db89d4727e5c938db6f27455da81e5ea0caf8","name":"Het Universumpje","registered_at":"2026-06-15T14:54:39Z","symbol":"NIM0743247","token_address":"0x6212f08bac9a16abc23391fec6dd37da8d6d534d","type":"artist","uuid":"03a9fad3-c543-4d6b-9e58-1566c1a2cb93"}
album: Voodoo
  type: MusicAlbum
  date published: 2024-03-08
album: Ik Woon In Een Kanonskogel
  type: MusicAlbum
  date published: 2024-03-15
album: Stilleven Met Dierentemmer
  type: MusicAlbum
  date published: 2024-03-22
  track: Voodoo
    type: MusicRecording
    duration: PT4M6S
    duration ms: 246104
    explicit: false
    by artist: Het Universumpje
    in album: Stilleven Met Dierentemmer
      type: MusicAlbum
      date published: 2024-03-22
    isrc code: USCGJ2456553
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T02:52:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x48210fa2997ce90ed99f52f91c1ae3ba270cacd67cf0dc476560cb002e784750
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958823
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958823
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ2456553
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T04:29:18Z
    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 0x48210fa2997ce90ed99f52f91c1ae3ba270cacd67cf0dc476560cb002e784750. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/USCGJ2456553.
      date published: 2026-07-20T04:29:18Z
    audio: Voodoo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 117.719
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.27
      additional property: Energy
        type: PropertyValue
        value: 0.672
      additional property: Speechiness
        type: PropertyValue
        value: 0.064
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.32
      additional property: Liveness
        type: PropertyValue
        value: 0.317
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.495
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.886
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major