Cuarto De Abajo
type: MusicGroup
popularity: 9
followers: 304
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x77d47ba3d40019f0903e7566980d3f18a30626a4d2f55c003054af14be8f1e4c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954573
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954573
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b4ed90df-3d9a-4bc1-a764-ecb3e7c6b8b7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b4ed90df-3d9a-4bc1-a764-ecb3e7c6b8b7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b4ed90df-3d9a-4bc1-a764-ecb3e7c6b8b7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T15:45:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x77d47ba3d40019f0903e7566980d3f18a30626a4d2f55c003054af14be8f1e4c","name":"Cuarto De Abajo","registered_at":"2026-06-20T13:59:59Z","symbol":"NIM1626510","token_address":"0x6cfd55406397a6b983fb460ebc9fb73ef1f7917a","type":"artist","uuid":"b4ed90df-3d9a-4bc1-a764-ecb3e7c6b8b7"}
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 0x77d47ba3d40019f0903e7566980d3f18a30626a4d2f55c003054af14be8f1e4c. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b4ed90df-3d9a-4bc1-a764-ecb3e7c6b8b7.json and https://artists.proofprofile.net/proofs/artist/b4ed90df-3d9a-4bc1-a764-ecb3e7c6b8b7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T15:45:29Z
  text: {"copyright_id":"0x77d47ba3d40019f0903e7566980d3f18a30626a4d2f55c003054af14be8f1e4c","name":"Cuarto De Abajo","registered_at":"2026-06-20T13:59:59Z","symbol":"NIM1626510","token_address":"0x6cfd55406397a6b983fb460ebc9fb73ef1f7917a","type":"artist","uuid":"b4ed90df-3d9a-4bc1-a764-ecb3e7c6b8b7"}
album: Cuarto de Abajo
  type: MusicAlbum
  date published: 2012-12-01
album: Personalizando
  type: MusicAlbum
  date published: 2014-01-14
album: Sueños en Espiral
  type: MusicAlbum
  date published: 2014-05-01
album: ¿Cómo tomas el café?
  type: MusicAlbum
  date published: 2014-05-05
album: El ritmo que canté
  type: MusicAlbum
  date published: 2014-05-05
album: Personalizando
  type: MusicAlbum
  date published: 2015-11-17
album: Meteorito
  type: MusicAlbum
  date published: 2020-01-31
album: Cumbión
  type: MusicAlbum
  date published: 2020-05-20
album: Paso la Vida Pensando
  type: MusicAlbum
  date published: 2020-06-12
album: La Mirada Chueca
  type: MusicAlbum
  date published: 2020-09-11
album: Soy
  type: MusicAlbum
  date published: 2020-12-30
album: Cien o Más Demonios
  type: MusicAlbum
  date published: 2021-03-26
album: En Crudo
  type: MusicAlbum
  date published: 2021-04-01
album: Mira El Sol
  type: MusicAlbum
  date published: 2025-05-23
  track: Mira El Sol
    type: MusicRecording
    duration: PT2M55S
    duration ms: 175192
    explicit: false
    by artist: Cuarto De Abajo
    in album: Mira El Sol
      type: MusicAlbum
      date published: 2025-05-23
    isrc code: QZNWX2553079
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T00:05:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xeb9748e2818fd65fb5e200d0b3d34ea2c33ac666ced62eaa5616fa80fba8e8de
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958800
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958800
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWX2553079
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T03:04:52Z
    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 0xeb9748e2818fd65fb5e200d0b3d34ea2c33ac666ced62eaa5616fa80fba8e8de. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:04:52Z), 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/QZNWX2553079.
      date published: 2026-07-20T03:04:52Z
    audio: Mira El Sol
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 77.998
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.588
      additional property: Energy
        type: PropertyValue
        value: 0.806
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.002
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.004
      additional property: Liveness
        type: PropertyValue
        value: 0.319
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.668
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.084
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major