Geraldo Cardoso
type: MusicGroup
genre: forró
popularity: 10
followers: 206
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/f4304ffa-d845-49c0-a072-aa8eaf1bbdd3.ots
additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f4304ffa-d845-49c0-a072-aa8eaf1bbdd3
additional property: OTSTimestamp
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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 0xbfb104ddca6ecbfbd50b3b60d961e6316db9830524ee68755f734d5a3f2e1be7. 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/f4304ffa-d845-49c0-a072-aa8eaf1bbdd3.json and https://artists.proofprofile.net/proofs/artist/f4304ffa-d845-49c0-a072-aa8eaf1bbdd3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T15:47:51Z
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album: Geraldo Cardoso
  type: MusicAlbum
  date published: 1984
album: Baião Aceso
  type: MusicAlbum
  date published: 1988
album: Prazer e Desejo
  type: MusicAlbum
  date published: 1989
album: Paixão Forrozeira
  type: MusicAlbum
  date published: 1997-01-05
album: Matuto de Luxo, Vol. 9
  type: MusicAlbum
  date published: 2006-01-02
album: Vida Vaqueira
  type: MusicAlbum
  date published: 2012-01-03
album: Matuto de Luxo, Vol. 8
  type: MusicAlbum
  date published: 2015-04-09
album: Arraiá do Matuto (Matuto de Luxo) [Ao Vivo]
  type: MusicAlbum
  date published: 2019-04-08
album: Eu Vou pra Vaquejada (Matuto de Luxo)
  type: MusicAlbum
  date published: 2019-11-14
album: Vaquejada Prime Tour 2017
  type: MusicAlbum
  date published: 2019-11-25
album: Carta para Mamãe
  type: MusicAlbum
  date published: 2021-06-05
album: 20 Super Sucessos Geraldo Cardoso
  type: MusicAlbum
  date published: 2021-08-13
album: É amor
  type: MusicAlbum
  date published: 2022-04-29
album: É o amor
  type: MusicAlbum
  date published: 2022-08-13
album: Largando Tudo
  type: MusicAlbum
  date published: 2022-09-02
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    by artist: Geraldo Cardoso
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      type: MusicAlbum
      date published: 2022-09-02
    genre: forró
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    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
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      type: PropertyValue
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    additional property: OTSVerificationAPI
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    additional property: OTSTimestamp
      type: PropertyValue
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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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3970d372b23e51b67e9016b50c34763cde8a4f07fae55b31f38473341540af8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BR03D2200275.
      date published: 2026-07-03T19:59:51Z
    audio: Largando Tudo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 155.027
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        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
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      additional property: Energy
        type: PropertyValue
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      additional property: Speechiness
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      additional property: Acousticness
        type: PropertyValue
        value: 0.417
      additional property: Instrumentalness
        type: PropertyValue
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      additional property: Liveness
        type: PropertyValue
        value: 0.136
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.829
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.902
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Oficina de Ex
  type: MusicAlbum
  date published: 2023-02-17
  track: Oficina de Ex
    type: MusicRecording
    duration: PT3M41S
    duration ms: 221034
    explicit: false
    by artist: Geraldo Cardoso
    in album: Oficina de Ex
      type: MusicAlbum
      date published: 2023-02-17
    genre: forró
    isrc code: BR03D2300118
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    additional property: CopyrightStatus
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    additional property: OTSVerificationAPI
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    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Oficina de Ex
album: Peão Boiadeiro
album: Todos Os Sons
album: L'amour
album: Forrófrevando - Ao Vivo No Carnaval de Olinda
album: Maceió Musa do Mar

OTSTimestamp
type: PropertyValue
value: 2026-07-03T08:56:35Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfafb26e256891999d106f90b513f6712f27ab54bfe7c029001a260dcc4f36931. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BR03D2300118.
date published: 2026-07-03T08:56:35Z

Oficina de Ex
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 152.011
additional property: Musical Key
  type: PropertyValue
  value: 8
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.638
additional property: Energy
  type: PropertyValue
  value: 0.936
additional property: Speechiness
  type: PropertyValue
  value: 0.048
additional property: Acousticness
  type: PropertyValue
  value: 0.288
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.259
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.833
additional property: Loudness (dB)
  type: PropertyValue
  value: -1.743
additional property: Key Name
  type: PropertyValue
  value: Ab
additional property: Mode Name
  type: PropertyValue
  value: Major

Peão Boiadeiro
type: MusicAlbum
date published: 2023-11-25

Todos Os Sons
type: MusicAlbum
date published: 2024-07-05
track: Vaqueiro Das Antigas
  type: MusicRecording
  duration: PT2M39S
  duration ms: 159660
  explicit: false
  by artist: Geraldo Cardoso
  in album: Todos Os Sons
    type: MusicAlbum
    date published: 2024-07-05
  genre: forró
  isrc code: BR03D2400606
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
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    type: PropertyValue
    value: 2026-06-29T14:30:12+00:00
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BR03D2400606
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T16:51:38Z
  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 0x4d52b626394844bba5935d89efe6086bd1c09f2fca161f201a5eaf877cc34958. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BR03D2400606.
    date published: 2026-07-02T16:51:38Z
  audio: Vaqueiro Das Antigas
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 165.968
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.739
    additional property: Energy
      type: PropertyValue
      value: 0.872
    additional property: Speechiness
      type: PropertyValue
      value: 0.075
    additional property: Acousticness
      type: PropertyValue
      value: 0.56
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.137
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.952
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.081
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor

L'amour
type: MusicAlbum
date published: 2025-02-26

L'amour
type: MusicAlbum
date published: 2025-02-26

Forrófrevando - Ao Vivo No Carnaval de Olinda
type: MusicAlbum
date published: 2025-02-28

Maceió Musa do Mar
type: MusicAlbum
date published: 2025-11-14