Luiz Vieira
type: MusicGroup
genre: brega
genre: mpb
genre: seresta
popularity: 24
followers: 4255
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x92252ffbd6da01ed73dcffca918fe123d095a5083b2177a488842be57513efbd
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/4d820c65-4085-4941-af88-e666342f50e4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4d820c65-4085-4941-af88-e666342f50e4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4d820c65-4085-4941-af88-e666342f50e4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x92252ffbd6da01ed73dcffca918fe123d095a5083b2177a488842be57513efbd","name":"Luiz Vieira","registered_at":"2026-06-11T19:36:10Z","symbol":"NIM0102140","token_address":"0xd91e09fad5cc0acc98222d48c5e1f3959c8c57bc","type":"artist","uuid":"4d820c65-4085-4941-af88-e666342f50e4"}
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 0x92252ffbd6da01ed73dcffca918fe123d095a5083b2177a488842be57513efbd. 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/4d820c65-4085-4941-af88-e666342f50e4.json and https://artists.proofprofile.net/proofs/artist/4d820c65-4085-4941-af88-e666342f50e4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x92252ffbd6da01ed73dcffca918fe123d095a5083b2177a488842be57513efbd","name":"Luiz Vieira","registered_at":"2026-06-11T19:36:10Z","symbol":"NIM0102140","token_address":"0xd91e09fad5cc0acc98222d48c5e1f3959c8c57bc","type":"artist","uuid":"4d820c65-4085-4941-af88-e666342f50e4"}
album: Na Asa Do Vento
  type: MusicAlbum
  date published: 1978-11-08
album: 20 Super Sucessos Luiz Vieira
  type: MusicAlbum
  date published: 1998-05-05
  track: Doce Regresso / Guarânia da Saudade
    type: MusicRecording
    duration: PT3M34S
    duration ms: 214076
    explicit: false
    by artist: Luiz Vieira
    in album: 20 Super Sucessos Luiz Vieira
      type: MusicAlbum
      date published: 1998-05-05
    genre: brega
    genre: mpb
    genre: seresta
    isrc code: FR2X41659266
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-11T22:18:34+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5a74b638185ee44e5a127fd85e0933316b1c3aa62e72d898cb48f180682cbc0d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957620
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957620
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2X41659266
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-11T22:32:56Z
    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 0x5a74b638185ee44e5a127fd85e0933316b1c3aa62e72d898cb48f180682cbc0d. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/FR2X41659266.
      date published: 2026-07-11T22:32:56Z
    audio: Doce Regresso / Guarânia da Saudade
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 105.1
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.557
      additional property: Energy
        type: PropertyValue
        value: 0.626
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.548
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.131
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.748
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.135
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Se Eu Pudesse Falar
  type: MusicAlbum
  date published: 2013-07-11
  track: O Menino de Braçanã
    type: MusicRecording
    duration: PT3M12S
    duration ms: 192440
    explicit: false
    by artist: Luiz Vieira
    in album: Se Eu Pudesse Falar
      type: MusicAlbum
      date published: 2013-07-11
    genre: brega
    genre: mpb
    genre: seresta
    isrc code: BRTMU1300360
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T16:07:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x459262f8a1025c8fd116c8c449e577eda82a4951e899da3515c68158aca1e7e8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958448
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958448
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTMU1300360
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T19:49:21Z
    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 0x459262f8a1025c8fd116c8c449e577eda82a4951e899da3515c68158aca1e7e8. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/BRTMU1300360.
      date published: 2026-07-17T19:49:21Z
    audio: O Menino de Braçanã
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 118.183
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.492
      additional property: Energy
        type: PropertyValue
        value: 0.331
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      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
album: O Melhor

Acousticness
type: PropertyValue
value: 0.972

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.157

Valence (Positivity)
type: PropertyValue
value: 0.51

Loudness (dB)
type: PropertyValue
value: -11.041

Key Name
type: PropertyValue
value: Bb

Mode Name
type: PropertyValue
value: Major

O Melhor
type: MusicAlbum
date published: 2024-09-22