David Desimpelaere
type: MusicGroup
genre: chamber music
popularity: 6
followers: 57
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/artist/5f3bb0d4-5c3a-4955-b27a-baf1753cf901.json
additional property: OTSVerificationAPI
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6af725dc6ff7046bbb5517c05b54dde083f0a631e3c679bf7bed193bc65c60. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5f3bb0d4-5c3a-4955-b27a-baf1753cf901.json and https://artists.proofprofile.net/proofs/artist/5f3bb0d4-5c3a-4955-b27a-baf1753cf901.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xab6af725dc6ff7046bbb5517c05b54dde083f0a631e3c679bf7bed193bc65c60","name":"David Desimpelaere","registered_at":"2026-06-16T23:08:15Z","symbol":"NIM1204718","token_address":"0x50c61cd60142aa4471cee7bff05aac7ad479a8cc","type":"artist","uuid":"5f3bb0d4-5c3a-4955-b27a-baf1753cf901"}
album: In Flanders' Fields, Vol. 79: Reflections on a Song
  type: MusicAlbum
  date published: 2013-10-25
album: Smile
  type: MusicAlbum
  date published: 2018-02-02
  track: 7 Canciones populares españolas (Arr. E. Desimpelaere for Double Bass & Piano): No. 5, Nana
    type: MusicRecording
    duration: PT2M44S
    duration ms: 164815
    explicit: false
    by artist: David Desimpelaere
    in album: Smile
      type: MusicAlbum
      date published: 2018-02-02
    genre: chamber music
    isrc code: ITN321717114
    additional property: CopyrightID
    additional property: CopyrightStatus
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      type: PropertyValue
      value: https://blockstream.info/api/block-height/958083
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITN321717114
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T01:50:31Z
    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 0x9bf65cac99fcc3660383cf9bcbbadf72d845614f5d7a516b9641346df32eef1b. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/ITN321717114.
      date published: 2026-07-15T01:50:31Z
    audio: 7 Canciones populares españolas (Arr. E. Desimpelaere for Double Bass & Piano): No. 5, Nana
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 76.373
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 1
      additional property: Danceability
        type: PropertyValue
        value: 0.206
      additional property: Energy
        type: PropertyValue
        value: 0.016
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.989
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.841
      additional property: Liveness
        type: PropertyValue
        value: 0.074
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.127
      additional property: Loudness (dB)
        type: PropertyValue
        value: -28.384
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Smile
  type: MusicAlbum
  date published: 2018-02-02