Cecilia Blanco
type: MusicGroup
description: Cecilia Blanco García (born 23 February 1979 in Madrid) is a Spanish judoka. She competed in two Summer Olympics: in 2004 in Athens in the 70 kg event where she lost the repechage semifinals to Qin Do
popularity: 6
followers: 300
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block-height/954728
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  value: https://artists.proofprofile.net/proofs/artist/faf86e90-48a0-4bbc-9e8d-fdc330860860.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/faf86e90-48a0-4bbc-9e8d-fdc330860860.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/faf86e90-48a0-4bbc-9e8d-fdc330860860
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  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 0x6dc449d17ed6a717da2b187bd35f73a2f072c8b4a21720a194042cd5946b6907. Chain 2 (Bitcoin): anchored in block 954729 (2026-06-21T18:16:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/faf86e90-48a0-4bbc-9e8d-fdc330860860.json and https://artists.proofprofile.net/proofs/artist/faf86e90-48a0-4bbc-9e8d-fdc330860860.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:16:07Z
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album: A Paso De Tortuga
  type: MusicAlbum
  date published: 1998-06-20
album: Tocando el Sol
  type: MusicAlbum
  date published: 1998-06-20
album: Pruébalo y verás
  type: MusicAlbum
  date published: 1998-06-20
album: La Aventura de la Vida
  type: MusicAlbum
  date published: 2005-05-26
album: Ley de Vida
  type: MusicAlbum
  date published: 2022-03-03
album: El Grito Mudo del Mar
  type: MusicAlbum
  date published: 2024-04-04
album: Tiempo
  type: MusicAlbum
  date published: 2025-01-03
  track: Tiempo
    type: MusicRecording
    duration: PT3M29S
    duration ms: 209609
    explicit: false
    by artist: Cecilia Blanco
    in album: Tiempo
      type: MusicAlbum
      date published: 2025-01-03
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    additional property: OTSBitcoinBlockVerifyURL
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZEB2487404
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-14T21:07:34Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538860bda0b5f502b038bde446035fce620f183c07204f7572b53eebf330cd06. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZZEB2487404.
      date published: 2026-07-14T21:07:34Z
    audio: Tiempo
      type: AudioObject
      additional property: Tempo (BPM)
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      additional property: Musical Key
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      additional property: Mode (Major/Minor)
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        value: 0
      additional property: Time Signature
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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)
        type: PropertyValue
        value: -12.259
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor