Duo Rodapião
type: MusicGroup
genre: lullaby
genre: traditional music
popularity: 11
followers: 425
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x33a5096caae5195021a0cb0aaa48bfeb15c0e73426187076d61e29b0e557c15a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953778
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953778
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c956047b-bcea-4134-b939-04167f6bdcfb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c956047b-bcea-4134-b939-04167f6bdcfb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c956047b-bcea-4134-b939-04167f6bdcfb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:57:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x33a5096caae5195021a0cb0aaa48bfeb15c0e73426187076d61e29b0e557c15a","name":"Duo Rodapião","registered_at":"2026-06-15T01:41:12Z","symbol":"NIM0642175","token_address":"0xa89c2eb12fcb13b4f701393018ccc89ad9e02236","type":"artist","uuid":"c956047b-bcea-4134-b939-04167f6bdcfb"}
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 0x33a5096caae5195021a0cb0aaa48bfeb15c0e73426187076d61e29b0e557c15a. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c956047b-bcea-4134-b939-04167f6bdcfb.json and https://artists.proofprofile.net/proofs/artist/c956047b-bcea-4134-b939-04167f6bdcfb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:57:35Z
  text: {"copyright_id":"0x33a5096caae5195021a0cb0aaa48bfeb15c0e73426187076d61e29b0e557c15a","name":"Duo Rodapião","registered_at":"2026-06-15T01:41:12Z","symbol":"NIM0642175","token_address":"0xa89c2eb12fcb13b4f701393018ccc89ad9e02236","type":"artist","uuid":"c956047b-bcea-4134-b939-04167f6bdcfb"}
album: Dois a Dois
  type: MusicAlbum
  date published: 1996-06-15
album: Pandalelê: Brinquedos Cantados
  type: MusicAlbum
  date published: 2001-08-18
album: Murucututu
  type: MusicAlbum
  date published: 2001-10-12
  track: Pão Pão Pão
    type: MusicRecording
    duration: PT1M17S
    duration ms: 77653
    explicit: false
    by artist: Duo Rodapião
    in album: Murucututu
      type: MusicAlbum
      date published: 2001-10-12
    genre: lullaby
    genre: traditional music
    isrc code: BRMPC0400097
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T13:54:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x89c106e40b61e3077e070960e1e1bf1ac16fedacbfed356b0d7d249f63a130cd
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956551
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956551
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRMPC0400097
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T21:18:05Z
    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 0x89c106e40b61e3077e070960e1e1bf1ac16fedacbfed356b0d7d249f63a130cd. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BRMPC0400097.
      date published: 2026-07-03T21:18:05Z
    audio: Pão Pão Pão
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.47
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.739
      additional property: Energy
        type: PropertyValue
        value: 0.229
      additional property: Speechiness
        type: PropertyValue
        value: 0.108
      additional property: Acousticness
        type: PropertyValue
        value: 0.468
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.057
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.456
      additional property: Loudness (dB)
        type: PropertyValue
        value: -16.376
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Nigun
  type: MusicAlbum
  date published: 2006-12-16
album: Umas e Outras do Rodapião
  type: MusicAlbum
  date published: 2017-10-17