Capitão D'areia
type: MusicGroup
popularity: 5
followers: 55
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9d657035de2df77aa212d71c83d5e1d1fc4cb602908314f0f7d944eacc9e14ec
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954500
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954500
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9afc9bd8-87bb-428f-8d9d-026a4de97628.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9afc9bd8-87bb-428f-8d9d-026a4de97628.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9afc9bd8-87bb-428f-8d9d-026a4de97628
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T04:47:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9d657035de2df77aa212d71c83d5e1d1fc4cb602908314f0f7d944eacc9e14ec","name":"Capitão D'areia","registered_at":"2026-06-20T03:41:18Z","symbol":"NIM1500830","token_address":"0xf661222dbfb02a3965ce023ccef846c4fdebb728","type":"artist","uuid":"9afc9bd8-87bb-428f-8d9d-026a4de97628"}
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d657035de2df77aa212d71c83d5e1d1fc4cb602908314f0f7d944eacc9e14ec. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9afc9bd8-87bb-428f-8d9d-026a4de97628.json and https://artists.proofprofile.net/proofs/artist/9afc9bd8-87bb-428f-8d9d-026a4de97628.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T04:47:29Z
  text: {"copyright_id":"0x9d657035de2df77aa212d71c83d5e1d1fc4cb602908314f0f7d944eacc9e14ec","name":"Capitão D'areia","registered_at":"2026-06-20T03:41:18Z","symbol":"NIM1500830","token_address":"0xf661222dbfb02a3965ce023ccef846c4fdebb728","type":"artist","uuid":"9afc9bd8-87bb-428f-8d9d-026a4de97628"}
album: Porto Seguro
  type: MusicAlbum
  date published: 2021-04-16
album: Bossa Nossa
  type: MusicAlbum
  date published: 2023-04-14
album: Bossa Nossa Brasil Gás
  type: MusicAlbum
  date published: 2024-03-15
album: Bossa Nossa Bananeiras
  type: MusicAlbum
  date published: 2024-03-22
album: Eu Não Acerto Nada
  type: MusicAlbum
  date published: 2024-07-19
album: Renda de Bilro
  type: MusicAlbum
  date published: 2024-11-22
album: Às vezes é só continuar
  type: MusicAlbum
  date published: 2025-04-04
  track: Às vezes é só continuar
    type: MusicRecording
    duration: PT3M14S
    duration ms: 194347
    explicit: false
    by artist: Capitão D'areia
    in album: Às vezes é só continuar
      type: MusicAlbum
      date published: 2025-04-04
    isrc code: BX8152525544
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T15:12:18+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7c6d6338de51a8c36942f2adf0f4db243e94f63f132f1758f208f4b20d616e3d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958430
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958430
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX8152525544
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T15:33:28Z
    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 0x7c6d6338de51a8c36942f2adf0f4db243e94f63f132f1758f208f4b20d616e3d. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/BX8152525544.
      date published: 2026-07-17T15:33:28Z
    audio: Às vezes é só continuar
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 91.96
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.687
      additional property: Energy
        type: PropertyValue
        value: 0.858
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.617
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.729
      additional property: Liveness
        type: PropertyValue
        value: 0.395
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.876
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.95
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Faded Letters
  type: MusicAlbum
  date published: 2025-04-23
  track: Faded Letters
    type: MusicRecording
    duration: PT3M56S
    duration ms: 236170
    explicit: false
    by artist: Capitão D'areia
    in album: Faded Letters
      type: MusicAlbum
      date published: 2025-04-23
    isrc code: SE6XY2580603
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T05:48:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa781173c50bf0f66d11a3c3c81ea1e475ea48bde1c7e325f421deb5f129cf714
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958373
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958373
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XY2580603
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T06:09:33Z
    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 0xa781173c50bf0f66d11a3c3c81ea1e475ea48bde1c7e325f421deb5f129cf714. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/SE6XY2580603.
      date published: 2026-07-17T06:09:33Z
    audio: Faded Letters
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 94.011
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.709
      additional property: Energy
      additional property: Speechiness
      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

Energy
type: PropertyValue
value: 0.659

Speechiness
type: PropertyValue
value: 0.092

Acousticness
type: PropertyValue
value: 0.192

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.186

Valence (Positivity)
type: PropertyValue
value: 0.536

Loudness (dB)
type: PropertyValue
value: -6.686

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major