Menno Gruijters
type: MusicGroup
popularity: 5
followers: 154
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa7dc816aaa5340c151b4e1685b60293dd8a3277578a823a64885765b3558402e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/50c97e08-3105-4648-9544-f8f9371d76eb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/50c97e08-3105-4648-9544-f8f9371d76eb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/50c97e08-3105-4648-9544-f8f9371d76eb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa7dc816aaa5340c151b4e1685b60293dd8a3277578a823a64885765b3558402e","name":"Menno Gruijters","registered_at":"2026-06-16T17:53:44Z","symbol":"NIM1129676","token_address":"0x6f27826658c032566ae695fae1e13b100ee2b74b","type":"artist","uuid":"50c97e08-3105-4648-9544-f8f9371d76eb"}
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 0xa7dc816aaa5340c151b4e1685b60293dd8a3277578a823a64885765b3558402e. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/50c97e08-3105-4648-9544-f8f9371d76eb.json and https://artists.proofprofile.net/proofs/artist/50c97e08-3105-4648-9544-f8f9371d76eb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xa7dc816aaa5340c151b4e1685b60293dd8a3277578a823a64885765b3558402e","name":"Menno Gruijters","registered_at":"2026-06-16T17:53:44Z","symbol":"NIM1129676","token_address":"0x6f27826658c032566ae695fae1e13b100ee2b74b","type":"artist","uuid":"50c97e08-3105-4648-9544-f8f9371d76eb"}
album: Jij Bent De Zon
  type: MusicAlbum
  date published: 2020-02-18
album: Leven Op De Pof
  type: MusicAlbum
  date published: 2023-10-23
album: Leven Op De Pof
  type: MusicAlbum
  date published: 2023-10-23
album: Jij bent de Zon
  type: MusicAlbum
  date published: 2024-10-08
album: Nog eentje op mij
  type: MusicAlbum
  date published: 2025-01-01
  track: Nog eentje op mij
    type: MusicRecording
    duration: PT2M44S
    duration ms: 164860
    explicit: false
    by artist: Menno Gruijters
    in album: Nog eentje op mij
      type: MusicAlbum
      date published: 2025-01-01
    isrc code: NLQ902400115
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T19:27:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9c8bb997aa50530d383ee40c89975766f7a49391e33d08946359d0a0a7257b09
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLQ902400115
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0x9c8bb997aa50530d383ee40c89975766f7a49391e33d08946359d0a0a7257b09. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NLQ902400115.
      date published: 2026-07-05T19:27:56Z
    audio: Nog eentje op mij
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.013
      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: 0.676
      additional property: Energy
        type: PropertyValue
        value: 0.789
      additional property: Speechiness
        type: PropertyValue
        value: 0.045
      additional property: Acousticness
        type: PropertyValue
        value: 0.479
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.412
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.573
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.158
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Van dag tot dag
  type: MusicAlbum
  date published: 2025-10-08