Paulinha Barbosa
type: MusicGroup
genre: forró
popularity: 5
followers: 128
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfa8e60b500368260d2e30e5dbb7477a08f8aaa253c748f80a3777743cc95413d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5728db98-87d0-4434-bf32-8442bb15d5b3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5728db98-87d0-4434-bf32-8442bb15d5b3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5728db98-87d0-4434-bf32-8442bb15d5b3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfa8e60b500368260d2e30e5dbb7477a08f8aaa253c748f80a3777743cc95413d","name":"Paulinha Barbosa","registered_at":"2026-06-16T20:06:43Z","symbol":"NIM1161411","token_address":"0xb703371c739facfaf9c585649fa02230368ea101","type":"artist","uuid":"5728db98-87d0-4434-bf32-8442bb15d5b3"}
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 0xfa8e60b500368260d2e30e5dbb7477a08f8aaa253c748f80a3777743cc95413d. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5728db98-87d0-4434-bf32-8442bb15d5b3.json and https://artists.proofprofile.net/proofs/artist/5728db98-87d0-4434-bf32-8442bb15d5b3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xfa8e60b500368260d2e30e5dbb7477a08f8aaa253c748f80a3777743cc95413d","name":"Paulinha Barbosa","registered_at":"2026-06-16T20:06:43Z","symbol":"NIM1161411","token_address":"0xb703371c739facfaf9c585649fa02230368ea101","type":"artist","uuid":"5728db98-87d0-4434-bf32-8442bb15d5b3"}
album: Verão do Federais
  type: MusicAlbum
  date published: 2019-01-11
album: 2k19
  type: MusicAlbum
  date published: 2019-06-15
album: Verão Federais do Forró
  type: MusicAlbum
  date published: 2019-09-09
album: Federais na Pool Party (Ao Vivo)
  type: MusicAlbum
  date published: 2019-11-15
album: Federais na Pool Party (Ao Vivo)
  type: MusicAlbum
  date published: 2019-11-15
album: Federais do Presente ao Passado
  type: MusicAlbum
  date published: 2020-03-03
album: Federais do Presente ao Passado
  type: MusicAlbum
  date published: 2020-03-03
  track: Nem Va
    type: MusicRecording
    duration: PT2M23S
    duration ms: 143567
    explicit: false
    by artist: Paulinha Barbosa
    in album: Federais do Presente ao Passado
      type: MusicAlbum
      date published: 2020-03-03
    genre: forró
    isrc code: QZEQU2037882
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T06:06:02+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8b449cae205dc4a19bed8dae9bf4f9c6ecd83f7b703a78868f0531f57fd67a23
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956474
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956474
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZEQU2037882
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T08:56:35Z
    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 0x8b449cae205dc4a19bed8dae9bf4f9c6ecd83f7b703a78868f0531f57fd67a23. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZEQU2037882.
      date published: 2026-07-03T08:56:35Z
    audio: Nem Va
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 151.915
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.685
      additional property: Energy
        type: PropertyValue
        value: 0.617
      additional property: Speechiness
        type: PropertyValue
        value: 0.093
      additional property: Acousticness
        type: PropertyValue
        value: 0.697
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.209
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.764
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.821
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Federais Com o Melhor da Vaquejada
  type: MusicAlbum
  date published: 2020-05-13
album: Federais Com o Melhor da Vaquejada
  type: MusicAlbum
  date published: 2020-05-13
album: Federais Com o Melhor da Vaquejada
  type: MusicAlbum
  date published: 2020-05-13