Nice Firmino
type: MusicGroup
genre: axé
popularity: 13
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd3a8c4164b0f0db3f9c3bfc8e48ab8fcecf2360b5ac691278bcb4c06cc5291dd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953648
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953648
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/374ff17f-2c1f-4d9f-b910-82543e069c70.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/374ff17f-2c1f-4d9f-b910-82543e069c70.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/374ff17f-2c1f-4d9f-b910-82543e069c70
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T15:20:52Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd3a8c4164b0f0db3f9c3bfc8e48ab8fcecf2360b5ac691278bcb4c06cc5291dd","name":"Nice Firmino","registered_at":"2026-06-14T10:13:20Z","symbol":"NIM0420775","token_address":"0x1a6b16993f2df5d267b9206e79bb77d57983e9e9","type":"artist","uuid":"374ff17f-2c1f-4d9f-b910-82543e069c70"}
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 0xd3a8c4164b0f0db3f9c3bfc8e48ab8fcecf2360b5ac691278bcb4c06cc5291dd. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/374ff17f-2c1f-4d9f-b910-82543e069c70.json and https://artists.proofprofile.net/proofs/artist/374ff17f-2c1f-4d9f-b910-82543e069c70.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0xd3a8c4164b0f0db3f9c3bfc8e48ab8fcecf2360b5ac691278bcb4c06cc5291dd","name":"Nice Firmino","registered_at":"2026-06-14T10:13:20Z","symbol":"NIM0420775","token_address":"0x1a6b16993f2df5d267b9206e79bb77d57983e9e9","type":"artist","uuid":"374ff17f-2c1f-4d9f-b910-82543e069c70"}
track: Firmei Meu Ponto / Ponto pro Tambor
  type: MusicRecording
  duration: PT4M30S
  duration ms: 270645
  explicit: false
  by artist: Alessandra Leão
  by artist: Luiz Soliano
  by artist: Pai Cacau
  by artist: Geraldo Barbosa
  by artist: Nice Firmino
  by artist: Paulinho Carrapeta
  by artist: Maíca Soares
  by artist: Luiz Paixão
  by artist: Anelis Assumpção
  by artist: Alexandre L'omi
  by artist: Garnizé
  by artist: Sapopemba
  by artist: Tia Maria de Guiné
  in album: Macumbas e Catimbós
    type: MusicAlbum
    date published: 2019-05-24
  genre: nova-mpb
  genre: axe
  isrc code: BXRI51900015
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T09:12:20+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc64e4c4ed4c256e76e435c1f1812e90ac579532e69c4763c9ca8cb2447665907
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953515
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953515
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXRI51900015
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T12:53:06Z
  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 0xc64e4c4ed4c256e76e435c1f1812e90ac579532e69c4763c9ca8cb2447665907. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BXRI51900015.
    date published: 2026-06-13T12:53:06Z
  audio: Firmei Meu Ponto / Ponto pro Tambor
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 141.056
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.696
    additional property: Energy
      type: PropertyValue
      value: 0.577
    additional property: Speechiness
      type: PropertyValue
      value: 0.207
    additional property: Acousticness
      type: PropertyValue
      value: 0.649
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.04
    additional property: Liveness
      type: PropertyValue
      value: 0.204
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.1
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.99
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Major