Los matadores del arpa
type: MusicGroup
genre: huayno
popularity: 4
followers: 447
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcde212548f455a5b74bfdda9b181c416e5df4d32608bf9c025b2363547a9ee8a
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/c8fbb2e9-a573-417d-8820-92ea62f766f5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c8fbb2e9-a573-417d-8820-92ea62f766f5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c8fbb2e9-a573-417d-8820-92ea62f766f5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcde212548f455a5b74bfdda9b181c416e5df4d32608bf9c025b2363547a9ee8a","name":"Los matadores del arpa","registered_at":"2026-06-20T22:31:04Z","symbol":"NIM1734393","token_address":"0x57168a3343ba8ef31ae3cbd3a910049e741245d2","type":"artist","uuid":"c8fbb2e9-a573-417d-8820-92ea62f766f5"}
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 0xcde212548f455a5b74bfdda9b181c416e5df4d32608bf9c025b2363547a9ee8a. 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/c8fbb2e9-a573-417d-8820-92ea62f766f5.json and https://artists.proofprofile.net/proofs/artist/c8fbb2e9-a573-417d-8820-92ea62f766f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xcde212548f455a5b74bfdda9b181c416e5df4d32608bf9c025b2363547a9ee8a","name":"Los matadores del arpa","registered_at":"2026-06-20T22:31:04Z","symbol":"NIM1734393","token_address":"0x57168a3343ba8ef31ae3cbd3a910049e741245d2","type":"artist","uuid":"c8fbb2e9-a573-417d-8820-92ea62f766f5"}
album: Los Matadores del Arpa
  type: MusicAlbum
  date published: 2021-09-18
  track: Me Emborracho por Tu Amor / Tu No Sabes Querer
    type: MusicRecording
    duration: PT7M2S
    duration ms: 422455
    explicit: false
    by artist: Los matadores del arpa
    in album: Los Matadores del Arpa
      type: MusicAlbum
      date published: 2021-09-18
    genre: huayno
    isrc code: QZNJW2147770
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T00:31:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x539daa2ef83978d6bec6785c849b0917430c903b22f1dfd4ccb152c3e5983193
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956857
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956857
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJW2147770
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:26:17Z
    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 0x539daa2ef83978d6bec6785c849b0917430c903b22f1dfd4ccb152c3e5983193. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZNJW2147770.
      date published: 2026-07-06T01:26:17Z
    audio: Me Emborracho por Tu Amor / Tu No Sabes Querer
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 144.358
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.623
      additional property: Energy
        type: PropertyValue
        value: 0.658
      additional property: Speechiness
        type: PropertyValue
        value: 0.297
      additional property: Acousticness
        type: PropertyValue
        value: 0.091
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.367
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.827
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.596
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major