Leonel Laterza
type: MusicGroup
genre: mpb
popularity: 5
followers: 403
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x98b25b6a2d01740cc2082a50a46ba75b8ade5a85177475b167a59c9e0c1d8711
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/f65ed08a-938e-47b3-9d47-323f9ee3c01f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f65ed08a-938e-47b3-9d47-323f9ee3c01f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f65ed08a-938e-47b3-9d47-323f9ee3c01f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T15:47:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x98b25b6a2d01740cc2082a50a46ba75b8ade5a85177475b167a59c9e0c1d8711","name":"Leonel Laterza","registered_at":"2026-06-21T15:24:49Z","symbol":"NIM1958624","token_address":"0x2e914f6a2a6bd5e165584ebda13060f9121756a6","type":"artist","uuid":"f65ed08a-938e-47b3-9d47-323f9ee3c01f"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b25b6a2d01740cc2082a50a46ba75b8ade5a85177475b167a59c9e0c1d8711. 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/f65ed08a-938e-47b3-9d47-323f9ee3c01f.json and https://artists.proofprofile.net/proofs/artist/f65ed08a-938e-47b3-9d47-323f9ee3c01f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T15:47:51Z
  text: {"copyright_id":"0x98b25b6a2d01740cc2082a50a46ba75b8ade5a85177475b167a59c9e0c1d8711","name":"Leonel Laterza","registered_at":"2026-06-21T15:24:49Z","symbol":"NIM1958624","token_address":"0x2e914f6a2a6bd5e165584ebda13060f9121756a6","type":"artist","uuid":"f65ed08a-938e-47b3-9d47-323f9ee3c01f"}
album: Asas em Mim
  type: MusicAlbum
  date published: 2004-04-21
album: Esmeraldas
  type: MusicAlbum
  date published: 2006-04-03
album: O Avesso do Tempo
  type: MusicAlbum
  date published: 2006-06-10
album: Guardados
  type: MusicAlbum
  date published: 2012-08-13
album: Desafio
  type: MusicAlbum
  date published: 2020-05-22
album: DELICADEZA - Canções de Dori Caymmi
  type: MusicAlbum
  date published: 2020-06-05
  track: O Cantador
    type: MusicRecording
    duration: PT5M13S
    duration ms: 313109
    explicit: false
    by artist: Leonel Laterza
    in album: DELICADEZA - Canções de Dori Caymmi
      type: MusicAlbum
      date published: 2020-06-05
    genre: mpb
    isrc code: BRL552000002
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T10:55:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x62674d48d13daced5101b56dc4bfe5ceb29f3508de187c0ef40022574114687f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958152
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958152
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRL552000002
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T13:56:49Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62674d48d13daced5101b56dc4bfe5ceb29f3508de187c0ef40022574114687f. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:56:49Z), 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/BRL552000002.
      date published: 2026-07-15T13:56:49Z
    audio: O Cantador
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 82.092
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.561
      additional property: Energy
        type: PropertyValue
        value: 0.311
      additional property: Speechiness
        type: PropertyValue
        value: 0.026
      additional property: Acousticness
        type: PropertyValue
        value: 0.856
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.009
      additional property: Liveness
        type: PropertyValue
        value: 0.086
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.284
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.832
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: CAIS TRIO
  type: MusicAlbum
  date published: 2021-09-02
album: Última Forma
  type: MusicAlbum
  date published: 2022-03-18
album: DOIS LITORAIS
  type: MusicAlbum
  date published: 2022-10-14
album: Eus com Giz
  type: MusicAlbum
  date published: 2023-11-10
album: Violão
  type: MusicAlbum
  date published: 2024-04-19
album: Quase Manhã
  type: MusicAlbum
  date published: 2024-11-22