Duo Prado Helguero
type: MusicGroup
genre: folklore argentino
popularity: 2
followers: 100
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd9831e840fa5666f21ec0acbead7f38260d8d031b9130505f6a2cf6971de68c6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954647
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954647
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d61f1d45-f3f8-47bb-b608-f422ff1b110d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d61f1d45-f3f8-47bb-b608-f422ff1b110d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d61f1d45-f3f8-47bb-b608-f422ff1b110d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:36:58Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd9831e840fa5666f21ec0acbead7f38260d8d031b9130505f6a2cf6971de68c6","name":"Duo Prado Helguero","registered_at":"2026-06-21T02:49:34Z","symbol":"NIM1796953","token_address":"0x5940cf0ab748234eae30e45f6f576d7937e894fa","type":"artist","uuid":"d61f1d45-f3f8-47bb-b608-f422ff1b110d"}
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 0xd9831e840fa5666f21ec0acbead7f38260d8d031b9130505f6a2cf6971de68c6. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d61f1d45-f3f8-47bb-b608-f422ff1b110d.json and https://artists.proofprofile.net/proofs/artist/d61f1d45-f3f8-47bb-b608-f422ff1b110d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:36:58Z
  text: {"copyright_id":"0xd9831e840fa5666f21ec0acbead7f38260d8d031b9130505f6a2cf6971de68c6","name":"Duo Prado Helguero","registered_at":"2026-06-21T02:49:34Z","symbol":"NIM1796953","token_address":"0x5940cf0ab748234eae30e45f6f576d7937e894fa","type":"artist","uuid":"d61f1d45-f3f8-47bb-b608-f422ff1b110d"}
album: Romance De La Luna Ausente
  type: MusicAlbum
  date published: 2025-06-19
  track: Romance De La Luna Ausente
    type: MusicRecording
    duration: PT4M11S
    duration ms: 251050
    explicit: false
    by artist: Duo Prado Helguero
    in album: Romance De La Luna Ausente
      type: MusicAlbum
      date published: 2025-06-19
    genre: folklore argentino
    isrc code: USHM82576091
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T19:38:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5a4df0906fac047a5ccb830d3d7b708e475fd22ec3665f697634cd8fab2d9e8e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958774
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958774
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM82576091
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T22:42:47Z
    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 0x5a4df0906fac047a5ccb830d3d7b708e475fd22ec3665f697634cd8fab2d9e8e. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:42:47Z), 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/USHM82576091.
      date published: 2026-07-19T22:42:47Z
    audio: Romance De La Luna Ausente
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 133.099
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.552
      additional property: Energy
        type: PropertyValue
        value: 0.521
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.844
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.099
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.466
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.744
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor