João Leopoldo
type: MusicGroup
genre: avant-garde
popularity: 4
followers: 520
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 953879
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953879
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0922a6f2-2c0b-4646-97c6-ef34a11b246a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0922a6f2-2c0b-4646-97c6-ef34a11b246a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0922a6f2-2c0b-4646-97c6-ef34a11b246a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:57:35Z
additional property: OTSCanonicalRecord
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  value: {"copyright_id":"0xaa75d6211dcff29205d1b7294311ca162ee468af465900bc4adb755a2cb62f65","name":"João Leopoldo","registered_at":"2026-06-15T16:56:10Z","symbol":"NIM0772252","token_address":"0xa96448082d684023f5341c40d5953c193022bb65","type":"artist","uuid":"0922a6f2-2c0b-4646-97c6-ef34a11b246a"}
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa75d6211dcff29205d1b7294311ca162ee468af465900bc4adb755a2cb62f65. Chain 2 (Bitcoin): anchored in block 953879 (2026-06-16T02:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0922a6f2-2c0b-4646-97c6-ef34a11b246a.json and https://artists.proofprofile.net/proofs/artist/0922a6f2-2c0b-4646-97c6-ef34a11b246a.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T02:57:35Z
  text: {"copyright_id":"0xaa75d6211dcff29205d1b7294311ca162ee468af465900bc4adb755a2cb62f65","name":"João Leopoldo","registered_at":"2026-06-15T16:56:10Z","symbol":"NIM0772252","token_address":"0xa96448082d684023f5341c40d5953c193022bb65","type":"artist","uuid":"0922a6f2-2c0b-4646-97c6-ef34a11b246a"}
album: Silêncio
  type: MusicAlbum
  date published: 2006
album: O Novo de Novo (Ao Vivo)
  type: MusicAlbum
  date published: 2015
album: Dois Pesos, Uma Medida
  type: MusicAlbum
  date published: 2015-03-31
album: Novo
  type: MusicAlbum
  date published: 2015-05-09
album: Oi, Tudo Bem?
  type: MusicAlbum
  date published: 2017-09-22
album: Oi, Tudo Bem?
  type: MusicAlbum
  date published: 2017-09-22
album: Ypsilon
  type: MusicAlbum
  date published: 2021-02-26
album: Palavrador
  type: MusicAlbum
  date published: 2021-03-26
album: Crimes, Histórias & Vingança
  type: MusicAlbum
  date published: 2021-05-06
album: Reverbeirando o Poço
  type: MusicAlbum
  date published: 2021-05-14
album: Por um Triz
  type: MusicAlbum
  date published: 2021-05-19
album: A Barca do Som
  type: MusicAlbum
  date published: 2021-05-22
album: Todo Não Saber do Sim
  type: MusicAlbum
  date published: 2021-06-18
album: Essa Música Não Existe
  type: MusicAlbum
  date published: 2021-07-16
album: Ideia Nova Ideia Velha
  type: MusicAlbum
  date published: 2021-08-20
album: Geni e o Zepelim (Cover)
  type: MusicAlbum
  date published: 2022-02-11
album: Por um Triz (Remasterizado)
  type: MusicAlbum
  date published: 2023-02-02
album: Obedeça (Remasterizado)
  type: MusicAlbum
  date published: 2023-03-20
album: Nexo para Reflexo (Remasterizado)
  type: MusicAlbum
  date published: 2024-03-08
album: Palavrador (2021 Remasterizado)
  type: MusicAlbum
  date published: 2024-04-04
album: O Movivento (Remastered 2024)
  type: MusicAlbum
  date published: 2024-04-26
album: Surdo Mudo
  type: MusicAlbum
  date published: 2024-05-09
album: Eu Não Gosto Mais de Você (Ao Vivo)
  type: MusicAlbum
  date published: 2024-05-24
album: Olhando pro Mar
  type: MusicAlbum
  date published: 2025-01-16
album: Jogo de Azar
  type: MusicAlbum
  date published: 2025-01-29
album: Coração Blues
  type: MusicAlbum
  date published: 2025-02-11
  track: Jogo de Azar
    type: MusicRecording
    duration: PT3M38S
    duration ms: 218046
    explicit: false
    by artist: João Leopoldo
    in album: Coração Blues
      type: MusicAlbum
      date published: 2025-02-11
    genre: avant-garde
    isrc code: BCOLP2500010
    additional property: CopyrightID
    additional property: CopyrightStatus
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      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T16:52:44+00:00
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    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCOLP2500010
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T16:59:47Z
    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 0x75e6fbf3f749d6382a77dcd71fe7754c7912969ecfa24bdbd0f466c39fb2bceb. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/BCOLP2500010 — a six-check JSON result.
      date published: 2026-07-21T16:59:47Z
    audio: Jogo de Azar
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 183.784
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.388
      additional property: Energy
        type: PropertyValue
        value: 0.393
      additional property: Speechiness
        type: PropertyValue
        value: 0.088
      additional property: Acousticness
        type: PropertyValue
        value: 0.367
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.191
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.225
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.64
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major