Los Hacendados
type: MusicGroup
genre: cumbia
genre: cumbia norteña
genre: sierreño
popularity: 10
followers: 67
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4f5af12a2765ee2cfa751642cc6253296190f7f7eccd3eb440f1eda1ddf78b9d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/faa1ade3-c07a-48ad-aad8-94743ab1881d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/faa1ade3-c07a-48ad-aad8-94743ab1881d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/faa1ade3-c07a-48ad-aad8-94743ab1881d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4f5af12a2765ee2cfa751642cc6253296190f7f7eccd3eb440f1eda1ddf78b9d","name":"Los Hacendados","registered_at":"2026-06-21T16:35:58Z","symbol":"NIM1976068","token_address":"0x3e7402e7b16111ab4f73fdfc1640b18b2b9e947b","type":"artist","uuid":"faa1ade3-c07a-48ad-aad8-94743ab1881d"}
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 0x4f5af12a2765ee2cfa751642cc6253296190f7f7eccd3eb440f1eda1ddf78b9d. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/faa1ade3-c07a-48ad-aad8-94743ab1881d.json and https://artists.proofprofile.net/proofs/artist/faa1ade3-c07a-48ad-aad8-94743ab1881d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0x4f5af12a2765ee2cfa751642cc6253296190f7f7eccd3eb440f1eda1ddf78b9d","name":"Los Hacendados","registered_at":"2026-06-21T16:35:58Z","symbol":"NIM1976068","token_address":"0x3e7402e7b16111ab4f73fdfc1640b18b2b9e947b","type":"artist","uuid":"faa1ade3-c07a-48ad-aad8-94743ab1881d"}
album: Guitarras Con Sabor a Vino
  type: MusicAlbum
  date published: 2014-09-19
album: Cumbias
  type: MusicAlbum
  date published: 2014-09-19
  track: El Pato y la Pata
    type: MusicRecording
    duration: PT1M39S
    duration ms: 99005
    explicit: false
    by artist: Los Hacendados
    in album: Cumbias
      type: MusicAlbum
      date published: 2014-09-19
    genre: cumbia
    genre: cumbia norteña
    genre: sierreño
    isrc code: USCGJ1515107
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T09:35:53+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd2d5ea0373d645e5cf501412b9367a3ee0a7e49171d365ac69c49e4dcecbd9af
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ1515107
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 0xd2d5ea0373d645e5cf501412b9367a3ee0a7e49171d365ac69c49e4dcecbd9af. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USCGJ1515107.
      date published: 2026-07-03T19:59:51Z
    audio: El Pato y la Pata
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 152.947
      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: 0.632
      additional property: Energy
        type: PropertyValue
        value: 0.537
      additional property: Speechiness
        type: PropertyValue
        value: 0.051
      additional property: Acousticness
        type: PropertyValue
        value: 0.798
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.175
      additional property: Liveness
        type: PropertyValue
        value: 0.257
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.975
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.391
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: A Salud de Esa
  type: MusicAlbum
  date published: 2017-02-05
album: Lo Bueno del Viejo
  type: MusicAlbum
  date published: 2017-02-05