Félix Luna
type: MusicGroup
description: Félix César Luna (30 September 1925 – 5 November 2009) was an Argentine writer, lyricist and historian. Life Luna was born in Buenos Aires to a family originally from La Rioja in 1925. A grandfather
popularity: 11
followers: 60
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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
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  date published: 2026-06-15T16:45:15Z
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track: Alfonsina y el Mar
track: Alfonsina y el mar - Gracias a la vida

Alfonsina y el Mar
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explicit: false
by artist: Ariel Ramírez
by artist: Félix Luna
by artist: Maximo Diego Pujol
in album: Lejos de casa
  type: MusicAlbum
  date published: 2024-06-28
popularity: 3
isrc code: ARR9V2200005
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Alfonsina y el Mar
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  additional property: Danceability
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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: A
  additional property: Mode Name
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Alfonsina y el mar - Gracias a la vida
type: MusicRecording
duration: PT4M51S
duration ms: 291506
explicit: false
by artist: Ariel Ramírez
by artist: Violeta Parra
by artist: Félix Luna
by artist: Plácido Domingo
by artist: The VVC Symphonic Orchestra
by artist: Bebu Silvetti
in album: Plácido Domingo - The Latin Album Collection
  type: MusicAlbum
  date published: 1982
isrc code: USSM11303189
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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
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Alfonsina y el mar - Gracias a la vida
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