LOS JUSTICIEROS
type: MusicGroup
description: Los Justicieros () was a Spanish anarchist militant group. Initially based in San Sebastián, in the Basque Country, the group was forced to flee to Zaragoza after its plot to assassinate King Alfonso
popularity: 4
followers: 499
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xee665cc11f99b1cefc7a99336491e116ef9c114784941b679439f9c78a05bd78
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4a5496a9-1385-4101-9eb4-a8840a0aa312.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4a5496a9-1385-4101-9eb4-a8840a0aa312.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4a5496a9-1385-4101-9eb4-a8840a0aa312
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xee665cc11f99b1cefc7a99336491e116ef9c114784941b679439f9c78a05bd78","name":"LOS JUSTICIEROS","registered_at":"2026-06-16T15:48:23Z","symbol":"NIM1099774","token_address":"0xe48dfeda365dde49ca554f9d05557924ee21cd6f","type":"artist","uuid":"4a5496a9-1385-4101-9eb4-a8840a0aa312"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee665cc11f99b1cefc7a99336491e116ef9c114784941b679439f9c78a05bd78. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4a5496a9-1385-4101-9eb4-a8840a0aa312.json and https://artists.proofprofile.net/proofs/artist/4a5496a9-1385-4101-9eb4-a8840a0aa312.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xee665cc11f99b1cefc7a99336491e116ef9c114784941b679439f9c78a05bd78","name":"LOS JUSTICIEROS","registered_at":"2026-06-16T15:48:23Z","symbol":"NIM1099774","token_address":"0xe48dfeda365dde49ca554f9d05557924ee21cd6f","type":"artist","uuid":"4a5496a9-1385-4101-9eb4-a8840a0aa312"}
album: El Agente
  type: MusicAlbum
  date published: 2023-03-29
  track: El Agente
    type: MusicRecording
    duration: PT3M57S
    duration ms: 237000
    explicit: false
    by artist: LOS JUSTICIEROS
    in album: El Agente
      type: MusicAlbum
      date published: 2023-03-29
    isrc code: QZHN52367124
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T17:18:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc8cf723c7a9dc5d63c1546e3270e36eb98b91add04a53e6715ce4a192791ffa4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958761
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958761
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN52367124
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T17:49:48Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8cf723c7a9dc5d63c1546e3270e36eb98b91add04a53e6715ce4a192791ffa4. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZHN52367124.
      date published: 2026-07-19T17:49:48Z
    audio: El Agente
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 199.531
      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: 0.497
      additional property: Energy
        type: PropertyValue
        value: 0.578
      additional property: Speechiness
        type: PropertyValue
        value: 0.098
      additional property: Acousticness
        type: PropertyValue
        value: 0.058
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.426
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.904
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.397
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: La Negra
  type: MusicAlbum
  date published: 2024-08-11
album: Intro Caravan + El Agente (en vivo)
  type: MusicAlbum
  date published: 2025-02-09
album: Un Besito
  type: MusicAlbum
  date published: 2025-11-08