La Fórmula Del Cuarteto
type: MusicGroup
genre: cuarteto
popularity: 12
followers: 674
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6c6dda5473160a49e535e090b15b52bca65ff1386684e7f42d7f21e334031111
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953657
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953657
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4e540545-af67-4e67-be27-601989c575c1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4e540545-af67-4e67-be27-601989c575c1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4e540545-af67-4e67-be27-601989c575c1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T16:43:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6dda5473160a49e535e090b15b52bca65ff1386684e7f42d7f21e334031111. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4e540545-af67-4e67-be27-601989c575c1.json and https://artists.proofprofile.net/proofs/artist/4e540545-af67-4e67-be27-601989c575c1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T16:43:25Z
  text: {"copyright_id":"0x6c6dda5473160a49e535e090b15b52bca65ff1386684e7f42d7f21e334031111","name":"La Fórmula Del Cuarteto","registered_at":"2026-06-14T12:39:36Z","symbol":"NIM0455667","token_address":"0xe141cd62ee3a1922acd0d7301eff0d022881b779","type":"artist","uuid":"4e540545-af67-4e67-be27-601989c575c1"}
album: Que Vida
  type: MusicAlbum
  date published: 2021-05-15
  track: Que Vida
    type: MusicRecording
    duration: PT3M17S
    duration ms: 197694
    explicit: false
    by artist: La Fórmula Del Cuarteto
    in album: Que Vida
      type: MusicAlbum
      date published: 2021-05-15
    genre: cuarteto
    isrc code: SE6I32101589
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
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      type: PropertyValue
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    additional property: CopyrightChainExplorerURL
      type: PropertyValue
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    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6I32101589
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0x890138e13ccb3d5175597fe18c8529780ebb6c1c3794800039222ffd9be32979. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SE6I32101589.
      date published: 2026-07-05T19:27:56Z
    audio: Que Vida
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 150.875
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.682
      additional property: Energy
        type: PropertyValue
        value: 0.902
      additional property: Speechiness
        type: PropertyValue
        value: 0.07
      additional property: Acousticness
        type: PropertyValue
        value: 0.297
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.08
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.869
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.922
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Enganchados de Cuartetos (Live)
  type: MusicAlbum
  date published: 2023-05-06
album: Enganchados Sin Bandera
  type: MusicAlbum
  date published: 2023-05-15
album: Historia Sin Final - Nueve y Media
  type: MusicAlbum
  date published: 2023-05-15
album: Cumbias (En Vivo)
  type: MusicAlbum
  date published: 2023-05-15
album: Donde Quieras Que Estes
  type: MusicAlbum
  date published: 2023-06-03
album: En Libertad - Escribele una Carta
  type: MusicAlbum
  date published: 2023-06-03
album: Antes de Apagarnos (Cover)
  type: MusicAlbum
  date published: 2024-05-10
album: Sueños Rotos (Cover)
  type: MusicAlbum
  date published: 2024-12-07
album: El Idiota (Cover)
  type: MusicAlbum
  date published: 2024-12-11