Cuarteto Jubal
type: MusicGroup
genre: cuarteto
popularity: 8
followers: 570
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd191892037f464b04cc8ffcc1af04ffd643027ff8cb30b4c6b8740ac67df4e48
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954623
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954623
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cbcabb25-f8c1-49c1-a0b6-cbed8e100e3e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cbcabb25-f8c1-49c1-a0b6-cbed8e100e3e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cbcabb25-f8c1-49c1-a0b6-cbed8e100e3e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:40:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd191892037f464b04cc8ffcc1af04ffd643027ff8cb30b4c6b8740ac67df4e48","name":"Cuarteto Jubal","registered_at":"2026-06-20T23:14:26Z","symbol":"NIM1743956","token_address":"0x9d8c5c60d87bdcbacb1289d268861c013ae0d8a3","type":"artist","uuid":"cbcabb25-f8c1-49c1-a0b6-cbed8e100e3e"}
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 0xd191892037f464b04cc8ffcc1af04ffd643027ff8cb30b4c6b8740ac67df4e48. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cbcabb25-f8c1-49c1-a0b6-cbed8e100e3e.json and https://artists.proofprofile.net/proofs/artist/cbcabb25-f8c1-49c1-a0b6-cbed8e100e3e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:40:06Z
  text: {"copyright_id":"0xd191892037f464b04cc8ffcc1af04ffd643027ff8cb30b4c6b8740ac67df4e48","name":"Cuarteto Jubal","registered_at":"2026-06-20T23:14:26Z","symbol":"NIM1743956","token_address":"0x9d8c5c60d87bdcbacb1289d268861c013ae0d8a3","type":"artist","uuid":"cbcabb25-f8c1-49c1-a0b6-cbed8e100e3e"}
album: Paz
  type: MusicAlbum
  date published: 2020-05-27
album: Jubal
  type: MusicAlbum
  date published: 2021-12-23
album: Dios de milagros
  type: MusicAlbum
  date published: 2021-12-26
album: Su dulce voz
  type: MusicAlbum
  date published: 2025-05-16
  track: Su dulce voz
    type: MusicRecording
    duration: PT4M25S
    duration ms: 265784
    explicit: false
    by artist: Cuarteto Jubal
    in album: Su dulce voz
      type: MusicAlbum
      date published: 2025-05-16
    genre: cuarteto
    isrc code: QZPLR2538438
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T13:33:23+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa5c7397987af210ef542cefd9872ae89924e72b559cca693ac49a87768e1db75
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958749
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958749
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLR2538438
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T16:37:34Z
    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 0xa5c7397987af210ef542cefd9872ae89924e72b559cca693ac49a87768e1db75. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:37:34Z), 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/QZPLR2538438.
      date published: 2026-07-19T16:37:34Z
    audio: Su dulce voz
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 160
      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: 0.476
      additional property: Energy
        type: PropertyValue
        value: 0.616
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.022
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.107
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.649
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.35
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major