Carnaval de Rio
type: MusicGroup
popularity: 8
followers: 313
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/871caf29-cc4e-45cb-bfa1-60f1b6f58f51
additional property: OTSTimestamp
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  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
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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 0x0f8170e9a15f2516f626141cd3d0f92b380aa4479fbf57e6b633fb3a454184d0. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/871caf29-cc4e-45cb-bfa1-60f1b6f58f51.json and https://artists.proofprofile.net/proofs/artist/871caf29-cc4e-45cb-bfa1-60f1b6f58f51.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x0f8170e9a15f2516f626141cd3d0f92b380aa4479fbf57e6b633fb3a454184d0","name":"Carnaval de Rio","registered_at":"2026-06-17T12:48:48Z","symbol":"NIM1400355","token_address":"0x6559bc662cd91ca79198412e1c36f0554507dcdf","type":"artist","uuid":"871caf29-cc4e-45cb-bfa1-60f1b6f58f51"}
album: Carnaval de Rio
  type: MusicAlbum
  date published: 2018-01-26
  track: Samba de Janeiro
    type: MusicRecording
    duration: PT3M9S
    duration ms: 189906
    explicit: false
    by artist: Carnaval de Rio
    in album: Carnaval de Rio
      type: MusicAlbum
      date published: 2018-01-26
    isrc code: FR0W61201682
    additional property: CopyrightID
    additional property: CopyrightStatus
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    additional property: OTSHash
    additional property: OTSBitcoinBlock
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      value: https://blockstream.info/api/block-height/958067
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR0W61201682
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-14T21:26:15Z
    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 0xa0836811db632940b7eb3e095076b20e1c562ffe5d64e92933d8665f7f5cf10a. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/FR0W61201682.
      date published: 2026-07-14T21:26:15Z
    audio: Samba de Janeiro
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 133.747
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.551
      additional property: Energy
        type: PropertyValue
        value: 0.976
      additional property: Speechiness
        type: PropertyValue
        value: 0.063
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.95
      additional property: Liveness
        type: PropertyValue
        value: 0.298
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.891
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.633
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor