Leiven
type: MusicGroup
popularity: 7
followers: 127
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xae561f3870d69bcc22d6a1987b4315616cbb4a634570a809ffd2eaf953d89046
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954134
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954134
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7e29dc2b-44a7-4278-bd19-904640b88fa5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7e29dc2b-44a7-4278-bd19-904640b88fa5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7e29dc2b-44a7-4278-bd19-904640b88fa5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:41:05Z
additional property: OTSCanonicalRecord
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 0xae561f3870d69bcc22d6a1987b4315616cbb4a634570a809ffd2eaf953d89046. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e29dc2b-44a7-4278-bd19-904640b88fa5.json and https://artists.proofprofile.net/proofs/artist/7e29dc2b-44a7-4278-bd19-904640b88fa5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:41:05Z
album: Recuerdos
  type: MusicAlbum
  date published: 2020-02-08
album: Libre
  type: MusicAlbum
  date published: 2020-11-20
album: Lindo
  type: MusicAlbum
  date published: 2022-05-27
album: Peace
  type: MusicAlbum
  date published: 2022-09-09
album: Bounce on the Congas
  type: MusicAlbum
  date published: 2022-12-02
album: Loveless
  type: MusicAlbum
  date published: 2022-12-30
album: Ella
  type: MusicAlbum
  date published: 2023-07-28
  track: Ella
    type: MusicRecording
    duration: PT4M33S
    duration ms: 273449
    explicit: false
    by artist: Leiven
    in album: Ella
      type: MusicAlbum
      date published: 2023-07-28
    isrc code: QZNWU2349260
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-14T20:52:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x32dbca98f4689d017184420d77880e3b811274aa51b9b119a985403d1c899565
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958063
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958063
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWU2349260
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-14T21:07:34Z
    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 0x32dbca98f4689d017184420d77880e3b811274aa51b9b119a985403d1c899565. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZNWU2349260.
      date published: 2026-07-14T21:07:34Z
    audio: Ella
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 123.975
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.858
      additional property: Energy
        type: PropertyValue
        value: 0.946
      additional property: Speechiness
        type: PropertyValue
        value: 0.191
      additional property: Acousticness
        type: PropertyValue
        value: 0.056
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.031
      additional property: Liveness
        type: PropertyValue
        value: 0.036
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.448
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.352
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Me Gustas Tu
  type: MusicAlbum
  date published: 2023-09-08
album: Omar
  type: MusicAlbum
  date published: 2023-09-08
album: Escape Myself
  type: MusicAlbum
  date published: 2023-09-15
album: Morelia
  type: MusicAlbum
  date published: 2023-09-29
album: Trop Beau
  type: MusicAlbum
  date published: 2023-11-17
album: Melting Collide
  type: MusicAlbum
  date published: 2023-12-22
album: Koyemba
  type: MusicAlbum
  date published: 2023-12-29
album: Potselui
  type: MusicAlbum
  date published: 2024-01-26
album: Mapata
  type: MusicAlbum
  date published: 2024-03-29
album: Eyes Closed
  type: MusicAlbum
  date published: 2024-05-10
album: Mozindo
  type: MusicAlbum
  date published: 2024-07-26
album: Got me Back
  type: MusicAlbum
  date published: 2025-03-28
album: Festoh
  type: MusicAlbum
  date published: 2025-07-18
album: Bayé
  type: MusicAlbum
  date published: 2025-09-12
album: Safe Life
  type: MusicAlbum
  date published: 2025-11-14