Juan Madrid
type: MusicGroup
description: thumb|right|300px|Juan Madrid (center) Juan Madrid (born 1947, in Málaga) is a Spanish writer, journalist and script writer. Biography He studied in Madrid and gained a degree in Contemporary History
popularity: 5
followers: 103
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additional property: CopyrightChainExplorerURL
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additional property: OTSCanonicalRecord
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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 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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbaf9b3a938ddcf93f0f70df56800e3cf19a8ae90a64f8bbbdeb341a62cc03b1. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad115de0-a79b-4e9c-9302-a459e48c244a.json and https://artists.proofprofile.net/proofs/artist/ad115de0-a79b-4e9c-9302-a459e48c244a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T11:51:30Z
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album: Esta Pena
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  date published: 2021-12-03
album: Romeo y Julieta
  type: MusicAlbum
  date published: 2021-12-10
album: Caminando a Mi Destino
  type: MusicAlbum
  date published: 2022-12-16
album: El Rey del Eje
  type: MusicAlbum
  date published: 2024-04-09
  track: El Rey del Eje
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    by artist: Juan Madrid
    in album: El Rey del Eje
      type: MusicAlbum
      date published: 2024-04-09
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    additional property: OTSTimestamp
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      value: 2026-07-05T01:12:41Z
    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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8049d6a91102645f672f85d43a03ba2f28fded7c6ce27a7b300507935c6cc65. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GX53U2335883.
      date published: 2026-07-05T01:12:41Z
    audio: El Rey del Eje
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      additional property: Danceability
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      additional property: Instrumentalness
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      additional property: Liveness
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        value: 0.289
      additional property: Valence (Positivity)
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        value: 0.839
      additional property: Loudness (dB)
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      additional property: Key Name
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      additional property: Mode Name
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album: El Rey del Eje
  type: MusicAlbum
  date published: 2024-04-09
album: El Rey del Eje
  type: MusicAlbum
  date published: 2024-04-09
album: Alejame de ti
  type: MusicAlbum
  date published: 2024-09-26
album: El Corrido del Chocho
  type: MusicAlbum
  date published: 2024-10-06
album: Culpable
  type: MusicAlbum
  date published: 2024-12-05
album: La Cumbia Del Blanco
  type: MusicAlbum
  date published: 2025-05-21
  track: La Cumbia Del Blanco
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    duration: PT3M3S
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    by artist: Juan Madrid
    in album: La Cumbia Del Blanco
      type: MusicAlbum
      date published: 2025-05-21
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    additional property: OTSTimestamp
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      value: 2026-07-18T07:54:29Z
    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 0x6759cc5e0826fafb1000345d518db7717b02ec5864bf35be9e43654da780868f. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZXLZ2519350.
      date published: 2026-07-18T07:54:29Z
    audio: La Cumbia Del Blanco
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      additional property: Tempo (BPM)
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        value: 141.998
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        value: 4
      additional property: Mode (Major/Minor)
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Mode (Major/Minor)
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value: 0

Time Signature
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Danceability
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Energy
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value: 0.709

Speechiness
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value: 0.22

Acousticness
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value: 0.269

Instrumentalness
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value: 0

Liveness
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value: 0.193

Valence (Positivity)
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value: 0.886

Loudness (dB)
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value: -5.699

Key Name
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value: E

Mode Name
type: PropertyValue
value: Minor