Maysa Matarazzo
type: MusicGroup
genre: seresta
description: Maysa Figueira Monjardim (June 6, 1936 – January 22, 1977), better known as Maysa Matarazzo, was a Brazilian singer-songwriter, performer and actress. She is also associated with Bossa nova music but
popularity: 11
followers: 8162
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSVerificationAPI
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  value: 2026-06-15T07:48:25Z
additional property: OTSCanonicalRecord
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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 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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496edd6b1b667cef44f1da3525ff5c4a802ec76cb6967a0e9ed29d1c41161f88. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0a3b820-1b96-42b4-bebf-084cfbf69729.json and https://artists.proofprofile.net/proofs/artist/b0a3b820-1b96-42b4-bebf-084cfbf69729.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T07:48:25Z
  text: {"copyright_id":"0x496edd6b1b667cef44f1da3525ff5c4a802ec76cb6967a0e9ed29d1c41161f88","name":"Maysa Matarazzo","registered_at":"2026-06-14T23:08:49Z","symbol":"NIM0605756","token_address":"0x15c37effa24c7cfb014fb1b8ac876ac5ec068eb6","type":"artist","uuid":"b0a3b820-1b96-42b4-bebf-084cfbf69729"}
album: Maysa chante... (Mono Version)
  type: MusicAlbum
  date published: 1960-01-01
album: Maysa Sings Songs Before Dawn...
  type: MusicAlbum
  date published: 1961-01-27
  track: A Noite Do Meu Bem
    type: MusicRecording
    duration: PT2M51S
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    explicit: false
    by artist: Maysa Matarazzo
    in album: Maysa Sings Songs Before Dawn...
      type: MusicAlbum
      date published: 1961-01-27
    genre: seresta
    isrc code: QM4TX1782383
    additional property: CopyrightID
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX1782383
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T03:46:09Z
    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 0xd1d45880456bc3b350c93e14a5f2fd9d3680fd2576b4d5d8c727ae9e592b1bb9. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QM4TX1782383.
      date published: 2026-07-16T03:46:09Z
    audio: A Noite Do Meu Bem
      type: AudioObject
      additional property: Tempo (BPM)
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      additional property: Musical Key
        type: PropertyValue
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      additional property: Mode (Major/Minor)
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      additional property: Time Signature
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        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.365
      additional property: Energy
        type: PropertyValue
        value: 0.373
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
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      additional property: Instrumentalness
        type: PropertyValue
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      additional property: Liveness
        type: PropertyValue
        value: 0.253
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.254
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.06
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: Ne Me Quitte Pas
    type: MusicRecording
    duration: PT4M22S
    duration ms: 262060
    explicit: false
    by artist: Maysa Matarazzo
    in album: Maysa Sings Songs Before Dawn...
      type: MusicAlbum
      date published: 1961-01-27
    genre: seresta
    isrc code: QM4TX1782385
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      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX1782385
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 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 0x547d37aad08033b97dcfc446a03e708c7c6a02c1a0bfd5c88ce512b31e9ab245. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QM4TX1782385.
      date published: 2026-07-05T19:27:56Z
    audio: Ne Me Quitte Pas
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 86.894
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.407
      additional property: Energy
        type: PropertyValue
        value: 0.214
      additional property: Speechiness
        type: PropertyValue
        value: 0.05
      additional property: Acousticness
        type: PropertyValue
        value: 0.991
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.293
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Maysa
album: Maysa: Bossa Nova Torch Queen
album: Bossa Nova Diva
album: Mundo Novo
album: Leisure Time
album: Golden Hits
album: Meu mundo caiu
album: Um Convite

Liveness
type: PropertyValue
value: 0.132

Valence (Positivity)
type: PropertyValue
value: 0.311

Loudness (dB)
type: PropertyValue
value: -9.855

Key Name
type: PropertyValue
value: Eb

Mode Name
type: PropertyValue
value: Minor

Maysa
type: MusicAlbum
date published: 2010

Maysa: Bossa Nova Torch Queen
type: MusicAlbum
date published: 2012-06-01

Bossa Nova Diva
type: MusicAlbum
date published: 2013-03-13

Mundo Novo
type: MusicAlbum
date published: 2014-09-11

Leisure Time
type: MusicAlbum
date published: 2014-09-12

Golden Hits
type: MusicAlbum
date published: 2014-11-03

Meu mundo caiu
type: MusicAlbum
date published: 2021-03-26

Um Convite
type: MusicAlbum
date published: 2022-05-20