La Cuarta
type: MusicGroup
genre: rock urbano
description: () is a Chilean daily tabloid and part of the Copesa group. The newspaper is famous for its tone and plebeian style of headlining stories. The newspaper began publication on 13 November 1984. On 17 N
popularity: 2
followers: 55
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  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
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  date published: 2026-06-21T07:29:20Z
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album: La Cuarta
  type: MusicAlbum
  date published: 2023-06-09
  track: El Rock Nunca Muere
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    by artist: La Cuarta
    in album: La Cuarta
      type: MusicAlbum
      date published: 2023-06-09
    genre: rock urbano
    isrc code: USHM82306360
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    subject of: OpenTimestamps Proof of Existence
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1374de033213e2631195fc47bd0858b500584c3311fc6cefc606f389c2c495df. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:03:11Z), 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/USHM82306360.
      date published: 2026-07-21T23:03:11Z
    audio: El Rock Nunca Muere
      type: AudioObject
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      additional property: Mode (Major/Minor)
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        value: 4
      additional property: Danceability
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      additional property: Liveness
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      additional property: Loudness (dB)
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      additional property: Key Name
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        value: E
      additional property: Mode Name
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        value: Minor
album: Feo Feo
  type: MusicAlbum
  date published: 2023-08-26