Leo Nard
type: MusicGroup
genre: axé
popularity: 2
followers: 72
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaee04ce992990894016adeff822111feed3399f6a6cceb582184376fe5ac312b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954027
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954027
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/39a71192-b6d2-4258-87d0-18537309a56e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/39a71192-b6d2-4258-87d0-18537309a56e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/39a71192-b6d2-4258-87d0-18537309a56e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T00:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xaee04ce992990894016adeff822111feed3399f6a6cceb582184376fe5ac312b","name":"Leo Nard","registered_at":"2026-06-16T09:41:07Z","symbol":"NIM1012145","token_address":"0xba006b72893bc2ff8c5d884d529d7b191711a5e7","type":"artist","uuid":"39a71192-b6d2-4258-87d0-18537309a56e"}
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 0xaee04ce992990894016adeff822111feed3399f6a6cceb582184376fe5ac312b. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/39a71192-b6d2-4258-87d0-18537309a56e.json and https://artists.proofprofile.net/proofs/artist/39a71192-b6d2-4258-87d0-18537309a56e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xaee04ce992990894016adeff822111feed3399f6a6cceb582184376fe5ac312b","name":"Leo Nard","registered_at":"2026-06-16T09:41:07Z","symbol":"NIM1012145","token_address":"0xba006b72893bc2ff8c5d884d529d7b191711a5e7","type":"artist","uuid":"39a71192-b6d2-4258-87d0-18537309a56e"}
album: Vivendo e cantando
  type: MusicAlbum
  date published: 2016-11-01
album: Novo alvorecer
  type: MusicAlbum
  date published: 2020-08-29
album: Eterna juventude
  type: MusicAlbum
  date published: 2021-01-22
album: Toda alegria
  type: MusicAlbum
  date published: 2021-01-28
album: Bem-vinda
  type: MusicAlbum
  date published: 2021-02-22
album: Sorriso verdadeiro
  type: MusicAlbum
  date published: 2021-06-02
album: Canção pra você (Versão Remasterizada)
  type: MusicAlbum
  date published: 2022-06-18
album: Mama Lala/ Clube Marítimo Africano
  type: MusicAlbum
  date published: 2024-09-27
album: Marcha de quarta-feira de cinzas
  type: MusicAlbum
  date published: 2024-10-04
album: Canto para Oxum (Oro mi maió)
  type: MusicAlbum
  date published: 2024-10-04
  track: Canto para Oxum (Oro mi maió)
    type: MusicRecording
    duration: PT3M54S
    duration ms: 234600
    explicit: false
    by artist: Leo Nard
    in album: Canto para Oxum (Oro mi maió)
      type: MusicAlbum
      date published: 2024-10-04
    genre: axé
    isrc code: QZWFN2474046
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T08:05:20+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd4133c2870bb897b651d17456a6c9ee0620641b26b13e0e05572df0d23dcd486
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958853
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958853
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFN2474046
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T11:05:01Z
    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 0xd4133c2870bb897b651d17456a6c9ee0620641b26b13e0e05572df0d23dcd486. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:05:01Z), 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/QZWFN2474046.
      date published: 2026-07-20T11:05:01Z
    audio: Canto para Oxum (Oro mi maió)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 89.751
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.789
      additional property: Energy
        type: PropertyValue
        value: 0.601
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.648
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.099
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.657
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.721
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Continente de prazer
  type: MusicAlbum
  date published: 2024-10-04
album: O meu guri
  type: MusicAlbum
  date published: 2024-10-04