Salvador Cardenal Barquero
type: MusicGroup
genre: singer-songwriter
genre: trova
popularity: 6
followers: 704
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x30bc9a557689e1cea282b1e38c5bc2842941794a9189b9150beb33db0ac17016
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/64bfebff-4ab2-474c-8a3a-991bab1733a0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/64bfebff-4ab2-474c-8a3a-991bab1733a0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/64bfebff-4ab2-474c-8a3a-991bab1733a0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x30bc9a557689e1cea282b1e38c5bc2842941794a9189b9150beb33db0ac17016","name":"Salvador Cardenal Barquero","registered_at":"2026-06-17T00:44:23Z","symbol":"NIM1227639","token_address":"0x9e84786268f8e260800bd3cd1c29946c1d2842ce","type":"artist","uuid":"64bfebff-4ab2-474c-8a3a-991bab1733a0"}
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30bc9a557689e1cea282b1e38c5bc2842941794a9189b9150beb33db0ac17016. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/64bfebff-4ab2-474c-8a3a-991bab1733a0.json and https://artists.proofprofile.net/proofs/artist/64bfebff-4ab2-474c-8a3a-991bab1733a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x30bc9a557689e1cea282b1e38c5bc2842941794a9189b9150beb33db0ac17016","name":"Salvador Cardenal Barquero","registered_at":"2026-06-17T00:44:23Z","symbol":"NIM1227639","token_address":"0x9e84786268f8e260800bd3cd1c29946c1d2842ce","type":"artist","uuid":"64bfebff-4ab2-474c-8a3a-991bab1733a0"}
album: Verde Verdad
  type: MusicAlbum
  date published: 2011-10-06
  track: Araré el Aire
    type: MusicRecording
    duration: PT4M15S
    duration ms: 255660
    explicit: false
    by artist: Salvador Cardenal Barquero
    in album: Verde Verdad
      type: MusicAlbum
      date published: 2011-10-06
    genre: singer-songwriter
    genre: trova
    isrc code: QZAPG1823261
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T19:14:45+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xba41bf1516a55ecd07760da9a532192b838c08d71bcf3f264a3628b283981767
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958447
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958447
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAPG1823261
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T19:47:19Z
    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 0xba41bf1516a55ecd07760da9a532192b838c08d71bcf3f264a3628b283981767. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZAPG1823261.
      date published: 2026-07-17T19:47:19Z
    audio: Araré el Aire
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 92.066
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.665
      additional property: Energy
        type: PropertyValue
        value: 0.617
      additional property: Speechiness
        type: PropertyValue
        value: 0.105
      additional property: Acousticness
        type: PropertyValue
        value: 0.176
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.133
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.841
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.177
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Tuyo Lo Que Soy
  type: MusicAlbum
  date published: 2018-01-06
album: Arare El Aire
  type: MusicAlbum
  date published: 2022-05-04