Frits Landesbergen
type: MusicGroup
description: thumb|Frits Landesbergen (2015) Frits Landesbergen (born 1961 in Voorschoten) is a Dutch jazz drummer and vibraphonist. Private life Since about 2003 he had been in a relationship with Joke Bruijs. T
popularity: 12
followers: 220
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4adbacd0061912d54d4d8db2905f95b67bdd01e655aa082b7811435957eb1958
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953741
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953741
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9b0097f2-b95d-435c-987c-cf079b4d6a5b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9b0097f2-b95d-435c-987c-cf079b4d6a5b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9b0097f2-b95d-435c-987c-cf079b4d6a5b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:44:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4adbacd0061912d54d4d8db2905f95b67bdd01e655aa082b7811435957eb1958","name":"Frits Landesbergen","registered_at":"2026-06-14T20:47:34Z","symbol":"NIM0572055","token_address":"0x54b9ec0a17a1e9808bdd3370ee61cd10398343be","type":"artist","uuid":"9b0097f2-b95d-435c-987c-cf079b4d6a5b"}
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 0x4adbacd0061912d54d4d8db2905f95b67bdd01e655aa082b7811435957eb1958. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9b0097f2-b95d-435c-987c-cf079b4d6a5b.json and https://artists.proofprofile.net/proofs/artist/9b0097f2-b95d-435c-987c-cf079b4d6a5b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:44:49Z
  text: {"copyright_id":"0x4adbacd0061912d54d4d8db2905f95b67bdd01e655aa082b7811435957eb1958","name":"Frits Landesbergen","registered_at":"2026-06-14T20:47:34Z","symbol":"NIM0572055","token_address":"0x54b9ec0a17a1e9808bdd3370ee61cd10398343be","type":"artist","uuid":"9b0097f2-b95d-435c-987c-cf079b4d6a5b"}
album: Alone Together
  type: MusicAlbum
  date published: 1987-06-07
album: Melange
  type: MusicAlbum
  date published: 1993
track: It Never Entered My Mind
  type: MusicRecording
  duration: PT3M6S
  duration ms: 186640
  explicit: false
  by artist: Louis van Dijk
  by artist: Edwin Corzilius
  by artist: Frits Landesbergen
  by artist: Jeroen De Rijk
  in album: Moonlight in Vermont
    type: MusicAlbum
    date published: 2001-05-19
  genre: dutch-classical-piano
  isrc code: NLD660600089
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-27T09:48:18+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe8f02b2cc8e63743324fdea874e4e71304dabdb291dc836a1470b34df01f8a84
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLD660600089
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  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 0xe8f02b2cc8e63743324fdea874e4e71304dabdb291dc836a1470b34df01f8a84. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NLD660600089.
    date published: 2026-07-02T03:55:08Z
  audio: It Never Entered My Mind
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 115.232
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.386
    additional property: Energy
      type: PropertyValue
      value: 0.142
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.928
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.844
    additional property: Liveness
      type: PropertyValue
      value: 0.091
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.099
    additional property: Loudness (dB)
      type: PropertyValue
      value: -19.869
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major