João Almeida Neto
type: MusicGroup
album: Coração de Gaúcho
  type: MusicAlbum
  date published: 2000-06-08
album: João de Almeida Neto e Nelson Cardoso
  type: MusicAlbum
  date published: 2002-08-01
album: Gaúchos Cantam Tangos
  type: MusicAlbum
  date published: 2006-05-01
album: Brasileiro e Castelhano
  type: MusicAlbum
  date published: 2010-06-08
track: Sonho Estradeiro
  type: MusicRecording
  duration: PT4M42S
  duration ms: 282560
  explicit: false
  by artist: João Almeida Neto
  in album: Coxilha Nativistas
    type: MusicAlbum
    date published: 2017-03-15
  isrc code: BRTMV1600329
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T21:29:52+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x221e23d03da43594ae5f58133d5d947cb1c9b27b2c44dacce41c15777dc6bb58
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTMV1600329
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  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 0x221e23d03da43594ae5f58133d5d947cb1c9b27b2c44dacce41c15777dc6bb58. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRTMV1600329.
    date published: 2026-07-08T03:22:41Z
  audio: Sonho Estradeiro
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 139.85
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.454
    additional property: Energy
      type: PropertyValue
      value: 0.337
    additional property: Speechiness
      type: PropertyValue
      value: 0.03
    additional property: Acousticness
      type: PropertyValue
      value: 0.761
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.162
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.3
    additional property: Loudness (dB)
      type: PropertyValue
      value: -15.131
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Segredos do Meu Cambicho
  type: MusicRecording
  duration: PT2M53S
  duration ms: 173077
  explicit: false
  by artist: João Almeida Neto
  in album: 5ª Coxilha Nativista
    type: MusicAlbum
    date published: 1985-10-02
  isrc code: QZNJY2135647
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T17:02:53+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xbb678fdef834b2ea976bc7516b51396dc10b9486f9ed3b332451d6f713fb79a6
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJY2135647
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  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 0xbb678fdef834b2ea976bc7516b51396dc10b9486f9ed3b332451d6f713fb79a6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZNJY2135647.
    date published: 2026-07-08T03:20:19Z
  audio: Segredos do Meu Cambicho
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 129.601
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.546
    additional property: Energy
      type: PropertyValue
      value: 0.183
    additional property: Speechiness
      type: PropertyValue
      value: 0.058
    additional property: Acousticness
      type: PropertyValue
      value: 0.753
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.114
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.28
    additional property: Loudness (dB)
      type: PropertyValue
      value: -22.626
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor