Siglo XXI
type: MusicGroup
popularity: 5
followers: 506
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x74dcb74a3c7048438640a22f169f3f83b97ce790e58d5e59920dcf50eddc9c91
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dae79577-e0ea-4d8b-bdcf-234f241fc2c7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dae79577-e0ea-4d8b-bdcf-234f241fc2c7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dae79577-e0ea-4d8b-bdcf-234f241fc2c7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x74dcb74a3c7048438640a22f169f3f83b97ce790e58d5e59920dcf50eddc9c91","name":"Siglo XXI","registered_at":"2026-06-21T04:33:23Z","symbol":"NIM1820047","token_address":"0xf52f4de6099a67901ff60505933cb86196600361","type":"artist","uuid":"dae79577-e0ea-4d8b-bdcf-234f241fc2c7"}
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 0x74dcb74a3c7048438640a22f169f3f83b97ce790e58d5e59920dcf50eddc9c91. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dae79577-e0ea-4d8b-bdcf-234f241fc2c7.json and https://artists.proofprofile.net/proofs/artist/dae79577-e0ea-4d8b-bdcf-234f241fc2c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x74dcb74a3c7048438640a22f169f3f83b97ce790e58d5e59920dcf50eddc9c91","name":"Siglo XXI","registered_at":"2026-06-21T04:33:23Z","symbol":"NIM1820047","token_address":"0xf52f4de6099a67901ff60505933cb86196600361","type":"artist","uuid":"dae79577-e0ea-4d8b-bdcf-234f241fc2c7"}
album: La Soledad Sonora
  type: MusicAlbum
  date published: 2014-02-16
album: La Moneda Se Volteó
  type: MusicAlbum
  date published: 2020-10-20
album: Memoria De Respeto
  type: MusicAlbum
  date published: 2021-09-07
album: La Sonrisa De Tu Ser
  type: MusicAlbum
  date published: 2021-09-25
album: Andan Comentando
  type: MusicAlbum
  date published: 2022-02-24
album: Hobby
  type: MusicAlbum
  date published: 2022-03-03
album: Michoacán También Suena, Vol.1
  type: MusicAlbum
  date published: 2022-04-30
album: De Clave El 50
  type: MusicAlbum
  date published: 2023-04-02
album: Ivan
  type: MusicAlbum
  date published: 2023-04-03
album: Las Reglas Se Hicieron Para Romperse
  type: MusicAlbum
  date published: 2023-05-27
album: Confiando En El Destino
  type: MusicAlbum
  date published: 2023-07-21
album: Somos Nueva Generación
  type: MusicAlbum
  date published: 2023-08-21
album: La Limpia
  type: MusicAlbum
  date published: 2024-04-04
  track: La Limpia
    type: MusicRecording
    duration: PT3M8S
    duration ms: 188196
    explicit: false
    by artist: Siglo XXI
    in album: La Limpia
      type: MusicAlbum
      date published: 2024-04-04
    isrc code: QZHNA2421492
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T17:45:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x43b8f2f03316b01eca7176bcb813bf9917939ba0bf0935d7a94342ea720e894e
    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/QZHNA2421492
    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 0x43b8f2f03316b01eca7176bcb813bf9917939ba0bf0935d7a94342ea720e894e. 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/QZHNA2421492.
      date published: 2026-07-17T19:47:19Z
    audio: La Limpia
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 146.108
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.679
      additional property: Energy
        type: PropertyValue
        value: 0.727
      additional property: Speechiness
        type: PropertyValue
        value: 0.058
      additional property: Acousticness
        type: PropertyValue
        value: 0.239
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.289
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.972
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.285
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Recuérdenme Así
  type: MusicAlbum
  date published: 2025-10-21