Alex Ribeiro
type: MusicGroup
genre: samba
description: Alex Dias Ribeiro (born November 7, 1948) is a former racing driver from Brazil. He entered in 20 Formula One World Championship Grands Prix but scored no World Championship points. Career thumb|R
popularity: 6
followers: 199
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additional property: OTSVerifyInstructions
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  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
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  date published: 2026-06-16T08:36:32Z
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album: Chegou Quem Faltava
  type: MusicAlbum
  date published: 2014-10-03
album: Lá Vem Ela
  type: MusicAlbum
  date published: 2016-11-09
album: Alex Ribeiro
  type: MusicAlbum
  date published: 2022-04-22
album: Galinho de Quintino
  type: MusicAlbum
  date published: 2022-06-17
track: Sapucaí, uma Viagem em 4 Tempos
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  duration: PT5M35S
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  by artist: SuperLiga
  by artist: Unidos da Barra da Tijuca
  by artist: Alex Ribeiro
  in album: Sambas de Enredo 2025: Série Prata (Superliga Carnavalesca do Brasil)
    type: MusicAlbum
    date published: 2025-01-18
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  additional property: OTSVerifyInstructions
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    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
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    date published: 2026-07-07T14:41:13Z
  audio: Sapucaí, uma Viagem em 4 Tempos
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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      value: 0.853
    additional property: Loudness (dB)
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      value: -9.31
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
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track: Verdade / Uma Prova De Amor
  type: MusicRecording
  duration: PT8M12S
  duration ms: 492560
  explicit: false
  by artist: Nelson Rufino
  by artist: Alex Ribeiro
  by artist: Batifun
  by artist: Bossa Do Samba
  by artist: Carla Cristina
  by artist: Carlinhos Brown
  by artist: Daniela Mercury
  by artist: Edil Pacheco
  by artist: Ivete Sangalo
  by artist: Jorge Aragão
  by artist: Mariene De Castro
  by artist: Walmir Lima
  by artist: Zeca Pagodinho
  in album: Minha Vida
    type: MusicAlbum
    date published: 2012-01-01
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  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 0x011eff1ecb39137e42a121c00e03ea6470852d8157d7cce0139341512ccdbacd. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BR9NU1200037.
    date published: 2026-07-02T03:30:09Z
  audio: Verdade / Uma Prova De Amor
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
    additional property: Danceability
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    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

Time Signature
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value: 5

Danceability
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Energy
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Speechiness
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value: 0.058

Acousticness
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value: 0.286

Instrumentalness
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value: 0

Liveness
type: PropertyValue
value: 0.758

Valence (Positivity)
type: PropertyValue
value: 0.728

Loudness (dB)
type: PropertyValue
value: -13.285

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major