La Calaka Está en la Casa
type: MusicGroup
genre: mexican rock
genre: ska
genre: ska punk
popularity: 11
followers: 568
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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: 2026-06-14T22:00:24Z
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album: Rolas Año 2000
  type: MusicAlbum
  date published: 2000-11-02
album: Danza de la Muerte
  type: MusicAlbum
  date published: 2003-03-20
album: Avaiko
  type: MusicAlbum
  date published: 2019-11-02
  track: Contre Toi
    type: MusicRecording
    duration: PT6M6S
    duration ms: 366503
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    by artist: La Calaka Está en la Casa
    in album: Avaiko
      type: MusicAlbum
      date published: 2019-11-02
    genre: mexican rock
    genre: ska
    genre: ska punk
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    additional property: OTSTimestamp
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    additional property: OTSVerifyInstructions
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      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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d16bb31af20986add17601fc7d0c5dc5ddf1accabab458a674a698f459b41c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USHM91967673.
      date published: 2026-07-06T01:25:57Z
    audio: Contre Toi
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
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      additional property: Musical Key
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      additional property: Danceability
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      additional property: Energy
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      additional property: Speechiness
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      additional property: Acousticness
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      additional property: Instrumentalness
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      additional property: Liveness
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      additional property: Valence (Positivity)
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      additional property: Loudness (dB)
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      additional property: Key Name
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        value: B
      additional property: Mode Name
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  type: MusicAlbum
  date published: 2022-12-01
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  type: MusicAlbum
  date published: 2023-07-24
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  type: MusicAlbum
  date published: 2023-12-30
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  type: MusicAlbum
  date published: 2024-08-30
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  type: MusicAlbum
  date published: 2025-03-25