Andrea Casarrubios
type: MusicGroup
popularity: 14
followers: 1047
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 953713
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953713
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/86761454-0c65-4f25-9559-e4b6fce0bb43.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/86761454-0c65-4f25-9559-e4b6fce0bb43.json
additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2ec0aeb202790b0046da0d5c16a2adfbdfe0b37e70ca76fe708d2293a623ed. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/86761454-0c65-4f25-9559-e4b6fce0bb43.json and https://artists.proofprofile.net/proofs/artist/86761454-0c65-4f25-9559-e4b6fce0bb43.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0xba2ec0aeb202790b0046da0d5c16a2adfbdfe0b37e70ca76fe708d2293a623ed","name":"Andrea Casarrubios","registered_at":"2026-06-14T18:31:57Z","symbol":"NIM0539719","token_address":"0x478703619b41fd4cee7fc1df333e8c088a3cb7cc","type":"artist","uuid":"86761454-0c65-4f25-9559-e4b6fce0bb43"}
album: Caminante
  type: MusicAlbum
  date published: 2019-02-22
album: SEVEN, Pt. 2
  type: MusicAlbum
  date published: 2022-09-09
album: Chorale for Strings
  type: MusicAlbum
  date published: 2023-04-17
album: Anthem for Strings
  type: MusicAlbum
  date published: 2023-04-17
album: Amid a Place of Stone
  type: MusicAlbum
  date published: 2023-04-24
album: Amid a place of stone for solo violin
  type: MusicAlbum
  date published: 2023-05-01
album: Our Stories: Contemporary Works by Black and Latinx Composers
  type: MusicAlbum
  date published: 2023-11-03
album: Casarrubios Magnitude
  type: MusicAlbum
  date published: 2024-03-01
album: SEVEN: works by Andrea Casarrubios
  type: MusicAlbum
  date published: 2024-08-30
  track: SEVEN (for solo cello)
    type: MusicRecording
    duration: PT10M34S
    duration ms: 634986
    explicit: false
    by artist: Andrea Casarrubios
    in album: SEVEN: works by Andrea Casarrubios
      type: MusicAlbum
      date published: 2024-08-30
    isrc code: US6XX2405701
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    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958444
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US6XX2405701
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T19:12:23Z
    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 0x1a5b1a47288b40c1282467b8c43f670ed14234f731ab13e11d53d2c22ea8c500. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/US6XX2405701.
      date published: 2026-07-17T19:12:23Z
    audio: SEVEN (for solo cello)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 80.871
      additional property: Musical Key
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        value: 7
      additional property: Mode (Major/Minor)
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        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
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        value: 0.172
      additional property: Energy
        type: PropertyValue
        value: 0.069
      additional property: Speechiness
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      additional property: Acousticness
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      additional property: Instrumentalness
        type: PropertyValue
        value: 0.828
      additional property: Liveness
        type: PropertyValue
        value: 0.107
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.039
      additional property: Loudness (dB)
        type: PropertyValue
        value: -22.32
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: SEVEN
  type: MusicAlbum
  date published: 2024-12-06