Grupo Master Boys
type: MusicGroup
genre: cumbia
genre: cumbia sonidera
popularity: 6
followers: 246
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4a0b367f70302387e3bcdcf1b4465ceb2a94170132ac42b6577bd541e0b7cf8b
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/d5636c72-8a49-45ef-a272-cee62772e2e7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d5636c72-8a49-45ef-a272-cee62772e2e7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d5636c72-8a49-45ef-a272-cee62772e2e7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4a0b367f70302387e3bcdcf1b4465ceb2a94170132ac42b6577bd541e0b7cf8b","name":"Grupo Master Boys","registered_at":"2026-06-21T02:52:40Z","symbol":"NIM1797192","token_address":"0x2c80ee2b9e18e5c988a81d15b8d107e7c1d3d815","type":"artist","uuid":"d5636c72-8a49-45ef-a272-cee62772e2e7"}
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 0x4a0b367f70302387e3bcdcf1b4465ceb2a94170132ac42b6577bd541e0b7cf8b. 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/d5636c72-8a49-45ef-a272-cee62772e2e7.json and https://artists.proofprofile.net/proofs/artist/d5636c72-8a49-45ef-a272-cee62772e2e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x4a0b367f70302387e3bcdcf1b4465ceb2a94170132ac42b6577bd541e0b7cf8b","name":"Grupo Master Boys","registered_at":"2026-06-21T02:52:40Z","symbol":"NIM1797192","token_address":"0x2c80ee2b9e18e5c988a81d15b8d107e7c1d3d815","type":"artist","uuid":"d5636c72-8a49-45ef-a272-cee62772e2e7"}
album: Me Faltas Tú
  type: MusicAlbum
  date published: 2020-01-14
album: Ya No Te Amo
  type: MusicAlbum
  date published: 2020-07-13
album: Ni el Tiempo
  type: MusicAlbum
  date published: 2020-08-10
album: No Te Cambiaria
  type: MusicAlbum
  date published: 2020-08-10
album: Y Si Te Vas
  type: MusicAlbum
  date published: 2020-10-10
  track: Y Si Te Vas
    type: MusicRecording
    duration: PT4M6S
    duration ms: 246503
    explicit: false
    by artist: Grupo Master Boys
    in album: Y Si Te Vas
      type: MusicAlbum
      date published: 2020-10-10
    genre: cumbia
    genre: cumbia sonidera
    isrc code: QZNJV2077445
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T19:20:00+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x10c85dac98bb5888edf0b11f47d5716d7d5825713a78e99aa783de916e1cad22
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959052
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959052
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2077445
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T19:50:27Z
    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 0x10c85dac98bb5888edf0b11f47d5716d7d5825713a78e99aa783de916e1cad22. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/QZNJV2077445.
      date published: 2026-07-21T19:50:27Z
    audio: Y Si Te Vas
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 91.993
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.679
      additional property: Energy
        type: PropertyValue
        value: 0.829
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.172
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.004
      additional property: Liveness
        type: PropertyValue
        value: 0.046
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.702
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.151
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Sin Decir Adios
  type: MusicAlbum
  date published: 2020-10-18
  track: Sin Decir Adios
    type: MusicRecording
    duration: PT3M37S
    duration ms: 217608
    explicit: false
    by artist: Grupo Master Boys
    in album: Sin Decir Adios
      type: MusicAlbum
      date published: 2020-10-18
    genre: cumbia
    genre: cumbia sonidera
    isrc code: QZNJW2005831
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T12:13:58+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xae8d4b19106ef8a14bcc687c93d1a306fec7f23deb946731e97714bfdd01a7cb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959009
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959009
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJW2005831
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T15:10:15Z
    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 0xae8d4b19106ef8a14bcc687c93d1a306fec7f23deb946731e97714bfdd01a7cb. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:10:15Z), 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/QZNJW2005831.
      date published: 2026-07-21T15:10:15Z
    audio: Sin Decir Adios
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 91.988
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.743
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Te Extraño

Energy
type: PropertyValue
value: 0.802

Speechiness
type: PropertyValue
value: 0.048

Acousticness
type: PropertyValue
value: 0.118

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.155

Valence (Positivity)
type: PropertyValue
value: 0.796

Loudness (dB)
type: PropertyValue
value: -5.076

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Minor

Ya No Te Amo
type: MusicAlbum
date published: 2022-05-11

Te Extraño
type: MusicAlbum
date published: 2022-09-03