Steffan de Kust
type: MusicGroup
popularity: 5
followers: 102
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1e4a4db81288eb380f6f526c03782049b76c9ee4d1aa61defdc048d3932aedd8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/73df80b5-ea3b-44d4-851c-bf9dd982b7ec.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/73df80b5-ea3b-44d4-851c-bf9dd982b7ec.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/73df80b5-ea3b-44d4-851c-bf9dd982b7ec
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1e4a4db81288eb380f6f526c03782049b76c9ee4d1aa61defdc048d3932aedd8","name":"Steffan de Kust","registered_at":"2026-06-17T06:04:49Z","symbol":"NIM1304126","token_address":"0x6eda20455fbfec72ed73cd252a505b0d04011f3f","type":"artist","uuid":"73df80b5-ea3b-44d4-851c-bf9dd982b7ec"}
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 0x1e4a4db81288eb380f6f526c03782049b76c9ee4d1aa61defdc048d3932aedd8. 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/73df80b5-ea3b-44d4-851c-bf9dd982b7ec.json and https://artists.proofprofile.net/proofs/artist/73df80b5-ea3b-44d4-851c-bf9dd982b7ec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x1e4a4db81288eb380f6f526c03782049b76c9ee4d1aa61defdc048d3932aedd8","name":"Steffan de Kust","registered_at":"2026-06-17T06:04:49Z","symbol":"NIM1304126","token_address":"0x6eda20455fbfec72ed73cd252a505b0d04011f3f","type":"artist","uuid":"73df80b5-ea3b-44d4-851c-bf9dd982b7ec"}
album: Geef Me Je Liefde
  type: MusicAlbum
  date published: 2018-10-19
album: Geef Me Je Liefde
  type: MusicAlbum
  date published: 2018-10-19
album: Draai je om
  type: MusicAlbum
  date published: 2019-04-07
album: Draai je om
  type: MusicAlbum
  date published: 2019-04-07
album: Blijf bij me vannacht
  type: MusicAlbum
  date published: 2019-10-21
album: Blijf bij me vannacht
  type: MusicAlbum
  date published: 2019-10-21
album: Jelena
  type: MusicAlbum
  date published: 2020-06-17
album: Op Het Kamp (feat. Duo Heesbeen)
  type: MusicAlbum
  date published: 2021-12-17
  track: Op Het Kamp (feat. Duo Heesbeen)
    type: MusicRecording
    duration: PT3M24S
    duration ms: 204000
    explicit: false
    by artist: Steffan de Kust
    in album: Op Het Kamp (feat. Duo Heesbeen)
      type: MusicAlbum
      date published: 2021-12-17
    isrc code: ZZOPM2119619
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T20:30:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6d482a75f8d1b94d29672f9bdbc3a560a83ae3848664e5b940153411b21ab300
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958779
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958779
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZZOPM2119619
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T21:08:39Z
    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 0x6d482a75f8d1b94d29672f9bdbc3a560a83ae3848664e5b940153411b21ab300. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/ZZOPM2119619.
      date published: 2026-07-19T21:08:39Z
    audio: Op Het Kamp (feat. Duo Heesbeen)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 129.991
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.673
      additional property: Energy
        type: PropertyValue
        value: 0.968
      additional property: Speechiness
        type: PropertyValue
        value: 0.059
      additional property: Acousticness
        type: PropertyValue
        value: 0.322
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.146
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.782
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.775
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Geef me je liefde
  type: MusicAlbum
  date published: 2022-04-29
album: Reizen Reizen
  type: MusicAlbum
  date published: 2022-06-10
album: Een Huis Dat Laat Ons Koud
  type: MusicAlbum
  date published: 2023-06-21
album: Ik Hou Zoveel Van Jou
  type: MusicAlbum
  date published: 2024-05-22
album: Ik Kan De Hele Wereld Aan
  type: MusicAlbum
  date published: 2024-07-24
album: Viva Saint Tropez
  type: MusicAlbum
  date published: 2024-08-30
album: Een beetje van dit
  type: MusicAlbum
  date published: 2024-11-01
album: Gypsy Gypsy (feat. Gypsy Squad)
  type: MusicAlbum
  date published: 2025-03-12
album: Hopeloos vertieft op jou
  type: MusicAlbum
  date published: 2025-03-21