Los Q-leros
type: MusicGroup
genre: cumbia
genre: cumbia sonidera
genre: guaracha
popularity: 8
followers: 2675
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4954610e27ad5549b782a71bad6bf92d966d813a08406deb8194882212318e9f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8a431185-e54e-41b1-a409-d9720e725a2c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8a431185-e54e-41b1-a409-d9720e725a2c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8a431185-e54e-41b1-a409-d9720e725a2c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4954610e27ad5549b782a71bad6bf92d966d813a08406deb8194882212318e9f","name":"Los Q-leros","registered_at":"2026-06-17T13:51:19Z","symbol":"NIM1415267","token_address":"0xd1e0e7cd17b040be27c89ced23f4326dbf7397bc","type":"artist","uuid":"8a431185-e54e-41b1-a409-d9720e725a2c"}
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 0x4954610e27ad5549b782a71bad6bf92d966d813a08406deb8194882212318e9f. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8a431185-e54e-41b1-a409-d9720e725a2c.json and https://artists.proofprofile.net/proofs/artist/8a431185-e54e-41b1-a409-d9720e725a2c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x4954610e27ad5549b782a71bad6bf92d966d813a08406deb8194882212318e9f","name":"Los Q-leros","registered_at":"2026-06-17T13:51:19Z","symbol":"NIM1415267","token_address":"0xd1e0e7cd17b040be27c89ced23f4326dbf7397bc","type":"artist","uuid":"8a431185-e54e-41b1-a409-d9720e725a2c"}
album: La Cumbia De Las Culeras
  type: MusicAlbum
  date published: 2006-06-12
  track: Cumbia De Los Culeros
    type: MusicRecording
    duration: PT3M18S
    duration ms: 198973
    explicit: false
    by artist: Los Q-leros
    in album: La Cumbia De Las Culeras
      type: MusicAlbum
      date published: 2006-06-12
    genre: cumbia
    genre: cumbia sonidera
    genre: guaracha
    isrc code: USAGX0500471
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T13:14:46+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x76f282ac9b9bd9e9ba0ce93f356d3ce39c0684cdd0ef9f3b538f4bab0c565b96
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958163
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958163
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAGX0500471
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T16:17:37Z
    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 0x76f282ac9b9bd9e9ba0ce93f356d3ce39c0684cdd0ef9f3b538f4bab0c565b96. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:17:37Z), 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/USAGX0500471.
      date published: 2026-07-15T16:17:37Z
    audio: Cumbia De Los Culeros
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 86.473
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.761
      additional property: Energy
        type: PropertyValue
        value: 0.551
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.1
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.182
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.624
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.477
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: La Muerte De Mariana - Guacharaca
    type: MusicRecording
    duration: PT3M44S
    duration ms: 224773
    explicit: false
    by artist: Los Q-leros
    in album: La Cumbia De Las Culeras
      type: MusicAlbum
      date published: 2006-06-12
    genre: cumbia
    genre: cumbia sonidera
    genre: guaracha
    isrc code: USAGX0500477
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T13:07:06+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xca1e5d8339e54933d64618f3c973e9f07b70ef73f8af985a6c8881b1ebbb4191
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    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/USAGX0500477
    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 0xca1e5d8339e54933d64618f3c973e9f07b70ef73f8af985a6c8881b1ebbb4191. 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/USAGX0500477.
      date published: 2026-07-05T19:27:56Z
    audio: La Muerte De Mariana - Guacharaca
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 89.963
      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: 0.795
      additional property: Energy
        type: PropertyValue
        value: 0.808
      additional property: Speechiness
        type: PropertyValue
        value: 0.288
      additional property: Acousticness
        type: PropertyValue
        value: 0.431
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.033
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Liveness
type: PropertyValue
value: 0.273

Valence (Positivity)
type: PropertyValue
value: 0.893

Loudness (dB)
type: PropertyValue
value: -3.509

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major