DJ Len
type: MusicGroup
genre: amapiano
popularity: 7
followers: 132
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2cdab7880de887d7191c9d2058da3743e91b32aee92a1bd0a339e06b7b53a58b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954717
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954717
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f37827c9-ced9-46b4-9e16-9725c0d1f8ad.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f37827c9-ced9-46b4-9e16-9725c0d1f8ad.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f37827c9-ced9-46b4-9e16-9725c0d1f8ad
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T15:47:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2cdab7880de887d7191c9d2058da3743e91b32aee92a1bd0a339e06b7b53a58b","name":"DJ Len","registered_at":"2026-06-21T14:20:50Z","symbol":"NIM1941294","token_address":"0x27fc8ece52db64ad4619507db3bd5121e13e3226","type":"artist","uuid":"f37827c9-ced9-46b4-9e16-9725c0d1f8ad"}
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 0x2cdab7880de887d7191c9d2058da3743e91b32aee92a1bd0a339e06b7b53a58b. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f37827c9-ced9-46b4-9e16-9725c0d1f8ad.json and https://artists.proofprofile.net/proofs/artist/f37827c9-ced9-46b4-9e16-9725c0d1f8ad.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T15:47:51Z
  text: {"copyright_id":"0x2cdab7880de887d7191c9d2058da3743e91b32aee92a1bd0a339e06b7b53a58b","name":"DJ Len","registered_at":"2026-06-21T14:20:50Z","symbol":"NIM1941294","token_address":"0x27fc8ece52db64ad4619507db3bd5121e13e3226","type":"artist","uuid":"f37827c9-ced9-46b4-9e16-9725c0d1f8ad"}
album: Sasquatch EP
  type: MusicAlbum
  date published: 2014-04-29
album: Fora dos Trilhos
  type: MusicAlbum
  date published: 2019-03-29
album: African King Amapiano
  type: MusicAlbum
  date published: 2021-10-10
album: Love Is Wicked
  type: MusicAlbum
  date published: 2023-08-01
album: Groove Goat Amapiano
  type: MusicAlbum
  date published: 2024-01-26
album: Ku Hela Mali
  type: MusicAlbum
  date published: 2024-04-24
album: Xitsonga Music
  type: MusicAlbum
  date published: 2024-05-21
  track: Haike Haike
    type: MusicRecording
    duration: PT3M8S
    duration ms: 188813
    explicit: false
    by artist: DJ Len
    in album: Xitsonga Music
      type: MusicAlbum
      date published: 2024-05-21
    genre: amapiano
    isrc code: USJ3V2396856
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T20:41:01+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6336a918265dd153cb72ccfe5171bbe0bca520c5498438eaf9c265b1ceccea09
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958202
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958202
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V2396856
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T21:23:21Z
    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 0x6336a918265dd153cb72ccfe5171bbe0bca520c5498438eaf9c265b1ceccea09. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V2396856 — a six-check JSON result.
      date published: 2026-07-15T21:23:21Z
    audio: Haike Haike
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 113.308
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.793
      additional property: Energy
        type: PropertyValue
        value: 0.964
      additional property: Speechiness
        type: PropertyValue
        value: 0.052
      additional property: Acousticness
        type: PropertyValue
        value: 0.005
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.833
      additional property: Liveness
        type: PropertyValue
        value: 0.065
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.741
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.051
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Mali
  type: MusicAlbum
  date published: 2024-08-23
album: Vhayi Vhayi Amapiano
  type: MusicAlbum
  date published: 2024-10-16
album: Tswara
  type: MusicAlbum
  date published: 2025-01-23
album: Rocket Instrument
  type: MusicAlbum
  date published: 2025-04-24
album: Xigaza Remix
  type: MusicAlbum
  date published: 2025-06-12
album: I Love You
  type: MusicAlbum
  date published: 2025-07-17
album: Tsonga Dance
  type: MusicAlbum
  date published: 2025-10-06