Tuca
type: MusicGroup
description: Tuca is the nickname of: Tuca Ferretti or Ricardo Ferretti (born 1954), Brazilian-Mexican footballer and manager Benjamín "Tuca" Pardo, fictional character in the 2012 Argentine telenovela Graduado
popularity: 6
followers: 534
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa4f874d6581f478bbcf1a406950cac93b0fb475b5ab7ea0d5216428d4ecabf79
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7373639f-aac4-4aa5-a8fc-19a719d21c18.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7373639f-aac4-4aa5-a8fc-19a719d21c18.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7373639f-aac4-4aa5-a8fc-19a719d21c18
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
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 0xa4f874d6581f478bbcf1a406950cac93b0fb475b5ab7ea0d5216428d4ecabf79. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7373639f-aac4-4aa5-a8fc-19a719d21c18.json and https://artists.proofprofile.net/proofs/artist/7373639f-aac4-4aa5-a8fc-19a719d21c18.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: Sound of Change
  type: MusicAlbum
  date published: 2019-09-13
album: Particular
  type: MusicAlbum
  date published: 2020-12-11
album: Particular
  type: MusicAlbum
  date published: 2020-12-11
album: Lost and Found
  type: MusicAlbum
  date published: 2021-04-23
album: Bet on Life
  type: MusicAlbum
  date published: 2022-04-08
album: Uma Vez
  type: MusicAlbum
  date published: 2023-06-30
album: Nunca É Tarde
  type: MusicAlbum
  date published: 2023-07-28
album: Não Importa
  type: MusicAlbum
  date published: 2023-08-25
album: Desperte
  type: MusicAlbum
  date published: 2023-09-22
album: Nunca É Tarde
  type: MusicAlbum
  date published: 2023-11-11
album: Não Importa (Acústico)
  type: MusicAlbum
  date published: 2024-01-19
album: Te Ver Partir
  type: MusicAlbum
  date published: 2024-11-22
album: De Tudo Um Pouco
  type: MusicAlbum
  date published: 2025-04-25
  track: De Tudo um Pouco
    type: MusicRecording
    duration: PT3M16S
    duration ms: 196653
    explicit: false
    by artist: Tuca
    in album: De Tudo Um Pouco
      type: MusicAlbum
      date published: 2025-04-25
    isrc code: BKP5A2500097
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T05:57:58+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2ed3f40f0260e43865c4ce51da527a5b84e436a2f237b64522446df7b06ed7e2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958377
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958377
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKP5A2500097
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T06:48:00Z
    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 0x2ed3f40f0260e43865c4ce51da527a5b84e436a2f237b64522446df7b06ed7e2. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/BKP5A2500097.
      date published: 2026-07-17T06:48:00Z
    audio: De Tudo um Pouco
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 129.981
      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: 0.654
      additional property: Energy
        type: PropertyValue
        value: 0.827
      additional property: Speechiness
        type: PropertyValue
        value: 0.065
      additional property: Acousticness
        type: PropertyValue
        value: 0.066
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.167
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.655
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.793
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor