Carla Franco
type: MusicGroup
genre: nova mpb
genre: samba
popularity: 15
followers: 679
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x19e60bef966ba6ced1117528431879b312c09a50d552bb4e3e7055f85ace51f0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953704
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953704
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/79eaaa89-1309-49d6-964f-52ab60489c47.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/79eaaa89-1309-49d6-964f-52ab60489c47.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/79eaaa89-1309-49d6-964f-52ab60489c47
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:58:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x19e60bef966ba6ced1117528431879b312c09a50d552bb4e3e7055f85ace51f0","name":"Carla Franco","registered_at":"2026-06-14T17:13:19Z","symbol":"NIM0520993","token_address":"0xfcd6b699fcf2c9b2229add1f3d0ea21d22afd165","type":"artist","uuid":"79eaaa89-1309-49d6-964f-52ab60489c47"}
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 0x19e60bef966ba6ced1117528431879b312c09a50d552bb4e3e7055f85ace51f0. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/79eaaa89-1309-49d6-964f-52ab60489c47.json and https://artists.proofprofile.net/proofs/artist/79eaaa89-1309-49d6-964f-52ab60489c47.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T22:58:38Z
  text: {"copyright_id":"0x19e60bef966ba6ced1117528431879b312c09a50d552bb4e3e7055f85ace51f0","name":"Carla Franco","registered_at":"2026-06-14T17:13:19Z","symbol":"NIM0520993","token_address":"0xfcd6b699fcf2c9b2229add1f3d0ea21d22afd165","type":"artist","uuid":"79eaaa89-1309-49d6-964f-52ab60489c47"}
album: Quando Eu Voltar a Viver
  type: MusicAlbum
  date published: 2021-01-25
album: Bem Passional
  type: MusicAlbum
  date published: 2021-05-07
album: Quando Eu Voltar a Viver
  type: MusicAlbum
  date published: 2021-05-31
  track: Quando Eu Voltar a Viver
    type: MusicRecording
    duration: PT5M4S
    duration ms: 304640
    explicit: false
    by artist: Carla Franco
    in album: Quando Eu Voltar a Viver
      type: MusicAlbum
      date published: 2021-05-31
    genre: nova mpb
    genre: samba
    isrc code: QZHZ52122892
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-14T20:48:43+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6bc9cb2046e58976de598eaa12bd2ac1939c9eccf9de25f6b9d57b4db76326fb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958063
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958063
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ52122892
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-14T21:07:34Z
    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 0x6bc9cb2046e58976de598eaa12bd2ac1939c9eccf9de25f6b9d57b4db76326fb. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZHZ52122892.
      date published: 2026-07-14T21:07:34Z
    audio: Quando Eu Voltar a Viver
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 93.878
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.697
      additional property: Energy
        type: PropertyValue
        value: 0.374
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.806
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.004
      additional property: Liveness
        type: PropertyValue
        value: 0.113
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.532
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.312
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Mar Crescido
  type: MusicAlbum
  date published: 2021-06-11
album: Coração Desavisado
  type: MusicAlbum
  date published: 2021-10-08
album: Urgente Viver
  type: MusicAlbum
  date published: 2022-02-25
  track: Urgente Viver
    type: MusicRecording
    duration: PT4M7S
    duration ms: 247098
    explicit: false
    by artist: Carla Franco
    in album: Urgente Viver
      type: MusicAlbum
      date published: 2022-02-25
    genre: nova mpb
    genre: samba
    isrc code: BCK982200001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T05:13:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x677d59020f1e6a110649e6b1c8f97627848a131372ae5aca3bf7f1d38af72ad5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958670
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958670
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCK982200001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T05:26:23Z
    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 0x677d59020f1e6a110649e6b1c8f97627848a131372ae5aca3bf7f1d38af72ad5. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/BCK982200001.
      date published: 2026-07-19T05:26:23Z
    audio: Urgente Viver
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 164.08
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.76
      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: 0.364

Speechiness
type: PropertyValue
value: 0.064

Acousticness
type: PropertyValue
value: 0.663

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.088

Valence (Positivity)
type: PropertyValue
value: 0.579

Loudness (dB)
type: PropertyValue
value: -12.249

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Minor

Bem Passional
type: MusicAlbum
date published: 2022-02-25

Mar Crescido
type: MusicAlbum
date published: 2022-03-11