César Natal
type: MusicGroup
genre: christmas
popularity: 12
followers: 730
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf1a1bbfee322ded046a6db92e82c759ac5645bb647a68922cea2a31054fe70. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c15b310e-e4ca-47a4-89e3-a6313b1f655f.json and https://artists.proofprofile.net/proofs/artist/c15b310e-e4ca-47a4-89e3-a6313b1f655f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:57:35Z
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album: Natal no Brasil - Canções de Natal Relaxantes
  type: MusicAlbum
  date published: 2017-11-23
album: Ho! Ho! Ho! Feliz Natal 2018 – Música de Natal para Crianças e Adultos, Coleção de Cantos Natalinos
  type: MusicAlbum
  date published: 2018-11-25
album: ¡Llegó la Navidad!: 15 Canciones con Hermosa Música de Piano Relajante para las Fiestas Navideñas
  type: MusicAlbum
  date published: 2019-12-12
album: Musicas de Natal para Piano: Músicas Natalinas Instrumentais
  type: MusicAlbum
  date published: 2020-11-17
  track: Música festiva
    type: MusicRecording
    duration: PT3M52S
    duration ms: 232291
    explicit: false
    by artist: César Natal
    in album: Musicas de Natal para Piano: Músicas Natalinas Instrumentais
      type: MusicAlbum
      date published: 2020-11-17
    genre: christmas
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    additional property: OTSTimestamp
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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
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      date published: 2026-07-06T01:25:57Z
    audio: Música festiva
      type: AudioObject
      additional property: Tempo (BPM)
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      additional property: Mode (Major/Minor)
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      additional property: Time Signature
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        value: 4
      additional property: Danceability
        type: PropertyValue
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      additional property: Energy
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      additional property: Speechiness
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      additional property: Acousticness
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        value: 0.994
      additional property: Instrumentalness
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        value: 0.958
      additional property: Liveness
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      additional property: Valence (Positivity)
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        value: 0.235
      additional property: Loudness (dB)
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        value: -22.425
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
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album: Navidad para Mascotas: Música Navideña Relajante para Aliviar la Ansiedad en Perros y Gatos
  type: MusicAlbum
  date published: 2021-12-16
album: Musica de Navidad Super Relajante para Dormir Bebes, Villancicos 2022
  type: MusicAlbum
  date published: 2022-11-22
album: Tradiciones Navideñas: Música Instrumental Suave para Hacer el Árbol de Navidad y Crear Atmósfera Mágica
  type: MusicAlbum
  date published: 2023-12-01
album: Natal Brasileiro: Ritmos Natalinos Bossa para Uma Celebração Inesquecível
  type: MusicAlbum
  date published: 2023-12-01
album: Noche de Paz
  type: MusicAlbum
  date published: 2023-12-01
album: Canções de Natal para Bebes: Melodias Calmas para uma Noite Tranquila, Músicas para Adormecer na Véspera de Natal
  type: MusicAlbum
  date published: 2023-12-01