Enrique Dumas
type: MusicGroup
genre: tango
description: Enrique Rodríguez Acha (8 May 1935 – 18 January 2009), better known by his stage name Enrique Dumas, was an Argentine tango singer. Life At the age of 14, he began his artistic career singing jazz
popularity: 5
followers: 633
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/954010
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/333d38bd-edac-4ec6-81a4-37cd260f75ac.ots
additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-06-16T21:41:36Z
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ea51a3d81583efab897031524a07ecf0706d353fc96148ca7a6ea20e17d31c. Chain 2 (Bitcoin): anchored in block 954010 (2026-06-16T21:41:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/333d38bd-edac-4ec6-81a4-37cd260f75ac.json and https://artists.proofprofile.net/proofs/artist/333d38bd-edac-4ec6-81a4-37cd260f75ac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T21:41:36Z
  text: {"copyright_id":"0xd1ea51a3d81583efab897031524a07ecf0706d353fc96148ca7a6ea20e17d31c","name":"Enrique Dumas","registered_at":"2026-06-16T07:44:27Z","symbol":"NIM0984312","token_address":"0xf1887648bdb013814d788110904c665e76051d6c","type":"artist","uuid":"333d38bd-edac-4ec6-81a4-37cd260f75ac"}
album: De Rompe y Raje
  type: MusicAlbum
  date published: 1968-12-06
  track: Garufa
    type: MusicRecording
    duration: PT2M12S
    duration ms: 132773
    explicit: false
    by artist: Enrique Dumas
    in album: De Rompe y Raje
      type: MusicAlbum
      date published: 1968-12-06
    genre: tango
    isrc code: ARF106800132
    additional property: CopyrightID
    additional property: CopyrightStatus
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    additional property: OTSVerificationAPI
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      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF106800132
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a5e23eb4f260c70347b31b4a6c6b0dfc18d718339af270a9bd1985ee1ab213. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ARF106800132.
      date published: 2026-07-05T19:27:56Z
    audio: Garufa
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 138.098
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.719
      additional property: Energy
        type: PropertyValue
        value: 0.506
      additional property: Speechiness
        type: PropertyValue
        value: 0.129
      additional property: Acousticness
        type: PropertyValue
        value: 0.634
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.012
      additional property: Liveness
        type: PropertyValue
        value: 0.104
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.783
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.037
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Tangos para Disfrutar
  type: MusicAlbum
  date published: 1975-08-21
album: Dumas del 80
  type: MusicAlbum
  date published: 1979-09-22
album: La Ultima Copa (Remastered)
  type: MusicAlbum
  date published: 2024-12-09