Lau Silva
type: MusicGroup
genre: afro house
genre: kuduro
popularity: 27
followers: 10619
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe52845e5ead8c7f86999fb5f740d57a7100d23c9d15e45ce2a4ca833c84a4324
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/18bcf3db-8dbb-4092-a74c-f1f96099eee4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/18bcf3db-8dbb-4092-a74c-f1f96099eee4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/18bcf3db-8dbb-4092-a74c-f1f96099eee4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe52845e5ead8c7f86999fb5f740d57a7100d23c9d15e45ce2a4ca833c84a4324","name":"Lau Silva","registered_at":"2026-06-11T12:49:45Z","symbol":"NIM0033549","token_address":"0xfbb2016beb1be459352a2746f13747f0ecafbc73","type":"artist","uuid":"18bcf3db-8dbb-4092-a74c-f1f96099eee4"}
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 0xe52845e5ead8c7f86999fb5f740d57a7100d23c9d15e45ce2a4ca833c84a4324. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/18bcf3db-8dbb-4092-a74c-f1f96099eee4.json and https://artists.proofprofile.net/proofs/artist/18bcf3db-8dbb-4092-a74c-f1f96099eee4.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xe52845e5ead8c7f86999fb5f740d57a7100d23c9d15e45ce2a4ca833c84a4324","name":"Lau Silva","registered_at":"2026-06-11T12:49:45Z","symbol":"NIM0033549","token_address":"0xfbb2016beb1be459352a2746f13747f0ecafbc73","type":"artist","uuid":"18bcf3db-8dbb-4092-a74c-f1f96099eee4"}
album: Uthanda Mina
  type: MusicAlbum
  date published: 2020-11-06
album: Siga la Luna
  type: MusicAlbum
  date published: 2023-03-29
album: Mataliyo (Remix)
  type: MusicAlbum
  date published: 2023-10-06
album: Kutche Itana (feat. Lenny Kappoko)
  type: MusicAlbum
  date published: 2024-03-15
  track: Kutche Itana (feat. Lenny Kappoko)
    type: MusicRecording
    duration: PT6M7S
    duration ms: 367873
    explicit: false
    by artist: Lau Silva
    in album: Kutche Itana (feat. Lenny Kappoko)
      type: MusicAlbum
      date published: 2024-03-15
    genre: afro house
    genre: kuduro
    isrc code: ZA99S2400001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T21:52:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb857b194e03193a1486f9bc38c575bf795af446058955c47fa9547520c9f69de
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958461
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958461
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA99S2400001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T23:18:11Z
    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 0xb857b194e03193a1486f9bc38c575bf795af446058955c47fa9547520c9f69de. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/ZA99S2400001 — a six-check JSON result.
      date published: 2026-07-17T23:18:11Z
    audio: Kutche Itana (feat. Lenny Kappoko)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 122.028
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.908
      additional property: Energy
        type: PropertyValue
        value: 0.601
      additional property: Speechiness
        type: PropertyValue
        value: 0.131
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.005
      additional property: Liveness
        type: PropertyValue
        value: 0.074
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.498
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.355
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Tari Wana
  type: MusicAlbum
  date published: 2024-08-29
album: Tari Wana (feat. Yuri da Cunha)
  type: MusicAlbum
  date published: 2024-08-30
album: Maqondana Wami (feat. Nokwazi, Bruno Masemza & Jhelem)
  type: MusicAlbum
  date published: 2025-02-14
  track: Maqondana Wami (feat. Nokwazi, Bruno Masemza & Jhelem)
    type: MusicRecording
    duration: PT6M11S
    duration ms: 371803
    explicit: false
    by artist: Lau Silva
    in album: Maqondana Wami (feat. Nokwazi, Bruno Masemza & Jhelem)
      type: MusicAlbum
      date published: 2025-02-14
    genre: afro house
    genre: kuduro
    isrc code: ZA99S2500001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T06:41:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x557473a0b949a91f387e3781bf11043e8eb110970698dc891e9733f1709d8ddc
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958839
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958839
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA99S2500001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T07:01:59Z
    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 0x557473a0b949a91f387e3781bf11043e8eb110970698dc891e9733f1709d8ddc. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/ZA99S2500001 — a six-check JSON result.
      date published: 2026-07-20T07:01:59Z
    audio: Maqondana Wami (feat. Nokwazi, Bruno Masemza & Jhelem)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 122.007
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Danceability
type: PropertyValue
value: 0.636

Energy
type: PropertyValue
value: 0.762

Speechiness
type: PropertyValue
value: 0.034

Acousticness
type: PropertyValue
value: 0.057

Instrumentalness
type: PropertyValue
value: 0.36

Liveness
type: PropertyValue
value: 0.132

Valence (Positivity)
type: PropertyValue
value: 0.567

Loudness (dB)
type: PropertyValue
value: -11.119

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Minor