Las Cardachians
type: MusicGroup
genre: guaracha
popularity: 3
followers: 1885
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa43993141257aaa8b23aadb5106907d198589d5948d6bac98f1651d1eb72960d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953911
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953911
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/18e5c57e-91da-4dbd-83a8-1e2f2b848d4f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/18e5c57e-91da-4dbd-83a8-1e2f2b848d4f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/18e5c57e-91da-4dbd-83a8-1e2f2b848d4f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T08:03:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa43993141257aaa8b23aadb5106907d198589d5948d6bac98f1651d1eb72960d","name":"Las Cardachians","registered_at":"2026-06-15T22:12:02Z","symbol":"NIM0847586","token_address":"0xa24a4e3bf87a566224e3ba813da9b0807ffba8a7","type":"artist","uuid":"18e5c57e-91da-4dbd-83a8-1e2f2b848d4f"}
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 0xa43993141257aaa8b23aadb5106907d198589d5948d6bac98f1651d1eb72960d. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/18e5c57e-91da-4dbd-83a8-1e2f2b848d4f.json and https://artists.proofprofile.net/proofs/artist/18e5c57e-91da-4dbd-83a8-1e2f2b848d4f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0xa43993141257aaa8b23aadb5106907d198589d5948d6bac98f1651d1eb72960d","name":"Las Cardachians","registered_at":"2026-06-15T22:12:02Z","symbol":"NIM0847586","token_address":"0xa24a4e3bf87a566224e3ba813da9b0807ffba8a7","type":"artist","uuid":"18e5c57e-91da-4dbd-83a8-1e2f2b848d4f"}
album: Sugar Guaracha
  type: MusicAlbum
  date published: 2020-03-27
album: Sugar Guaracha
  type: MusicAlbum
  date published: 2020-03-27
  track: Sugar Guaracha
    type: MusicRecording
    duration: PT3M18S
    duration ms: 198769
    explicit: true
    by artist: Las Cardachians
    in album: Sugar Guaracha
      type: MusicAlbum
      date published: 2020-03-27
    genre: guaracha
    isrc code: USCGJ2077881
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T07:20:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xcf3ac3c38de77b09b4c987ff0722b6b01bee57f765c278fc6884bde1c704ab3b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956656
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956656
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ2077881
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T14:03:39Z
    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 0xcf3ac3c38de77b09b4c987ff0722b6b01bee57f765c278fc6884bde1c704ab3b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USCGJ2077881.
      date published: 2026-07-04T14:03:39Z
    audio: Sugar Guaracha
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 128.037
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.846
      additional property: Energy
        type: PropertyValue
        value: 0.865
      additional property: Speechiness
        type: PropertyValue
        value: 0.082
      additional property: Acousticness
        type: PropertyValue
        value: 0.005
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.011
      additional property: Liveness
        type: PropertyValue
        value: 0.102
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.931
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.87
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Sugar Guaracha
  type: MusicAlbum
  date published: 2020-03-27