De Leppels
type: MusicGroup
popularity: 5
followers: 201
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x88dfe8c42c4fb8fe26b975576a6b955d3a49630d9efd03ed7f179f9d77c58ba3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/83c2f378-7f03-4dc9-99ac-9d221be7ed5d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/83c2f378-7f03-4dc9-99ac-9d221be7ed5d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/83c2f378-7f03-4dc9-99ac-9d221be7ed5d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x88dfe8c42c4fb8fe26b975576a6b955d3a49630d9efd03ed7f179f9d77c58ba3","name":"De Leppels","registered_at":"2026-06-17T11:31:52Z","symbol":"NIM1382087","token_address":"0x0ff2459eab60ead4d1a13024df27500d1efd2680","type":"artist","uuid":"83c2f378-7f03-4dc9-99ac-9d221be7ed5d"}
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 0x88dfe8c42c4fb8fe26b975576a6b955d3a49630d9efd03ed7f179f9d77c58ba3. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/83c2f378-7f03-4dc9-99ac-9d221be7ed5d.json and https://artists.proofprofile.net/proofs/artist/83c2f378-7f03-4dc9-99ac-9d221be7ed5d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x88dfe8c42c4fb8fe26b975576a6b955d3a49630d9efd03ed7f179f9d77c58ba3","name":"De Leppels","registered_at":"2026-06-17T11:31:52Z","symbol":"NIM1382087","token_address":"0x0ff2459eab60ead4d1a13024df27500d1efd2680","type":"artist","uuid":"83c2f378-7f03-4dc9-99ac-9d221be7ed5d"}
album: God is een Boeskool
  type: MusicAlbum
  date published: 2017-01-18
album: Bie de Blaank'n leer je feesten
  type: MusicAlbum
  date published: 2018-11-18
album: Jong treft oud
  type: MusicAlbum
  date published: 2019-12-14
album: Weer Carnaval In Boeskoolstad
  type: MusicAlbum
  date published: 2021-12-31
  track: Weer Carnaval In Boeskoolstad
    type: MusicRecording
    duration: PT3M14S
    duration ms: 194788
    explicit: false
    by artist: De Leppels
    in album: Weer Carnaval In Boeskoolstad
      type: MusicAlbum
      date published: 2021-12-31
    isrc code: QZTAU2176788
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T11:59:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1794cb90ca0ec80db1e175ce4223c7843668af55d09bf3b69d876ac0ce752859
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959008
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959008
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAU2176788
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T13:14:05Z
    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 0x1794cb90ca0ec80db1e175ce4223c7843668af55d09bf3b69d876ac0ce752859. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QZTAU2176788.
      date published: 2026-07-21T13:14:05Z
    audio: Weer Carnaval In Boeskoolstad
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 141.952
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.668
      additional property: Energy
        type: PropertyValue
        value: 0.733
      additional property: Speechiness
        type: PropertyValue
        value: 0.092
      additional property: Acousticness
        type: PropertyValue
        value: 0.283
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.117
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.615
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.587
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Blauw Rood
  type: MusicAlbum
  date published: 2022-12-31
album: Ga je vanavond met me mee
  type: MusicAlbum
  date published: 2023-12-15
album: Blaank'n gaan tekeer
  type: MusicAlbum
  date published: 2024-12-31