Robertinho Do Acordeon
type: MusicGroup
popularity: 7
followers: 1111
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x861fae6f02a678c40b4d6152a60f414ef206cb1de9370290eed59aa2bc1c5325
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953860
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953860
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/03d74acc-dcc5-45a3-80bf-6e00c95d54fe.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/03d74acc-dcc5-45a3-80bf-6e00c95d54fe.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/03d74acc-dcc5-45a3-80bf-6e00c95d54fe
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T23:55:46Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x861fae6f02a678c40b4d6152a60f414ef206cb1de9370290eed59aa2bc1c5325","name":"Robertinho Do Acordeon","registered_at":"2026-06-15T14:48:05Z","symbol":"NIM0741675","token_address":"0xcacdc0159ab3659562a590f4a2676fb2d090ef99","type":"artist","uuid":"03d74acc-dcc5-45a3-80bf-6e00c95d54fe"}
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 0x861fae6f02a678c40b4d6152a60f414ef206cb1de9370290eed59aa2bc1c5325. Chain 2 (Bitcoin): anchored in block 953860 (2026-06-15T23:55:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/03d74acc-dcc5-45a3-80bf-6e00c95d54fe.json and https://artists.proofprofile.net/proofs/artist/03d74acc-dcc5-45a3-80bf-6e00c95d54fe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T23:55:46Z
  text: {"copyright_id":"0x861fae6f02a678c40b4d6152a60f414ef206cb1de9370290eed59aa2bc1c5325","name":"Robertinho Do Acordeon","registered_at":"2026-06-15T14:48:05Z","symbol":"NIM0741675","token_address":"0xcacdc0159ab3659562a590f4a2676fb2d090ef99","type":"artist","uuid":"03d74acc-dcc5-45a3-80bf-6e00c95d54fe"}
album: Festas Juninas
  type: MusicAlbum
  date published: 1981-02-15
album: Pula a Fogueira
  type: MusicAlbum
  date published: 1983-01-01
album: Revendo o Passado
  type: MusicAlbum
  date published: 1985-05-13
album: Robertinho do Acordeon, Vol. 25
  type: MusicAlbum
  date published: 1989-01-26
album: Sucessos Sertanejos
  type: MusicAlbum
  date published: 1997-02-15
album: Arrasta-pé Fantástico
  type: MusicAlbum
  date published: 2001
album: Arrasta-pé Fantástico
  type: MusicAlbum
  date published: 2001
album: Arrasta-Pé Fantástico (Sucessos para uma Festa Alegre)
  type: MusicAlbum
  date published: 2001
album: Dose Dupla
  type: MusicAlbum
  date published: 2002-02-02
album: Sambas Eternos
  type: MusicAlbum
  date published: 2003
album: Marcando Quadrilha
  type: MusicAlbum
  date published: 2003-02-15
album: Valsas Brasileiras
  type: MusicAlbum
  date published: 2003-03-28
  track: Clube XV
    type: MusicRecording
    duration: PT3M6S
    duration ms: 186333
    explicit: false
    by artist: Robertinho Do Acordeon
    in album: Valsas Brasileiras
      type: MusicAlbum
      date published: 2003-03-28
    isrc code: BRACP0400188
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T03:06:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3f99446e0a09471e57ca4000feca419e0efac34a73e9af549ef8a9174e1f59cb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958650
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958650
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRACP0400188
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T03:36:41Z
    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 0x3f99446e0a09471e57ca4000feca419e0efac34a73e9af549ef8a9174e1f59cb. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/BRACP0400188.
      date published: 2026-07-19T03:36:41Z
    audio: Clube XV
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 162.918
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.493
      additional property: Energy
        type: PropertyValue
        value: 0.336
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.823
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.183
      additional property: Liveness
        type: PropertyValue
        value: 0.395
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.799
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.897
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Valsas Brasileiras
  type: MusicAlbum
  date published: 2003-03-28
album: Valsas Brasileiras
  type: MusicAlbum
  date published: 2003-04-05
album: O Melhor das Festas Juninas
  type: MusicAlbum
  date published: 2003-07-15
album: Os Melhores Sanfoneiros do Brasil
  type: MusicAlbum
  date published: 2003-07-15
album: O Melhor das Festas Juninas
  type: MusicAlbum
  date published: 2003-07-15
album: Festa do Brasil - Forrò
  type: MusicAlbum
  date published: 2006-03-01
album: O Melhor das Festas Juninas
  type: MusicAlbum
  date published: 2009-05-01
album: Festa Junina (Arrasta-Pé e Quadrilha)
  type: MusicAlbum
  date published: 2017-03-29
album: O Melhor de Robertinho do Acordeon
  type: MusicAlbum
  date published: 2018-07-11