Las Rubias Del Norte
type: MusicGroup
description: Las Rubias del Norte (trans. The Blondes from the North) are a band from Brooklyn, New York formed by classically trained singers Allyssa Lamb and Emily Hurst. The band is known for playing Latin musi
popularity: 13
followers: 1518
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additional property: OTSVerifyInstructions
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614683fdd6a1a4fe977f10245f11d0cde6b9ef5e4acb6d1c713aca7905bb3e92. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ebd470b4-dac9-47b5-8271-484502a72e9a.json and https://artists.proofprofile.net/proofs/artist/ebd470b4-dac9-47b5-8271-484502a72e9a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T16:39:18Z
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album: Rumba Internationale
  type: MusicAlbum
  date published: 2004-02-14
  track: Piel Canela
    type: MusicRecording
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    by artist: Las Rubias Del Norte
    in album: Rumba Internationale
      type: MusicAlbum
      date published: 2004-02-14
    isrc code: USCNP0500108
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-17T11:34:58Z
    audio: Piel Canela
      type: AudioObject
      additional property: Tempo (BPM)
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      additional property: Loudness (dB)
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      additional property: Key Name
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album: Rumba Internationale
  type: MusicAlbum
  date published: 2004-02-14
album: Rumba Internationale
  type: MusicAlbum
  date published: 2004-02-14
album: Panamericana
  type: MusicAlbum
  date published: 2006-03-14
album: Panamericana
  type: MusicAlbum
  date published: 2006-03-14
album: Ziguala
  type: MusicAlbum
  date published: 2010-03-09
album: Ziguala
  type: MusicAlbum
  date published: 2010-03-09
album: Ziguala
  type: MusicAlbum
  date published: 2010-03-09
  track: Ziguala
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    duration: PT3M32S
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    by artist: Las Rubias Del Norte
    in album: Ziguala
      type: MusicAlbum
      date published: 2010-03-09
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-05T19:27:56Z
    audio: Ziguala
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      additional property: Time Signature
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      additional property: Valence (Positivity)
      additional property: Loudness (dB)
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  track: El Alcaravan

Danceability
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Energy
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value: 0.423

Speechiness
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value: 0.034

Acousticness
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value: 0.942

Instrumentalness
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value: 0.215

Liveness
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value: 0.111

Valence (Positivity)
type: PropertyValue
value: 0.796

Loudness (dB)
type: PropertyValue
value: -10.047

Key Name
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value: G

Mode Name
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value: Minor

El Alcaravan
type: MusicRecording
duration: PT3M49S
duration ms: 229893
explicit: false
by artist: Las Rubias Del Norte
in album: Ziguala
  type: MusicAlbum
  date published: 2010-03-09
isrc code: USCNP1002404
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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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  date published: 2026-07-22T10:01:58Z
audio: El Alcaravan
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