Las Vulpes
type: MusicGroup
genre: hardcore punk
popularity: 3
followers: 2189
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1821e99282d9e705727338d339e98f9824e6d47dcb10ced058af2f33b0d0085d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954647
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954647
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d83cf8a0-346c-4762-9ede-ed58944b6971.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d83cf8a0-346c-4762-9ede-ed58944b6971.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d83cf8a0-346c-4762-9ede-ed58944b6971
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:36:58Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1821e99282d9e705727338d339e98f9824e6d47dcb10ced058af2f33b0d0085d","name":"Las Vulpes","registered_at":"2026-06-21T03:29:55Z","symbol":"NIM1806339","token_address":"0x40b4cfcd10402877ea90b0cb127139a84ee4aefc","type":"artist","uuid":"d83cf8a0-346c-4762-9ede-ed58944b6971"}
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 0x1821e99282d9e705727338d339e98f9824e6d47dcb10ced058af2f33b0d0085d. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d83cf8a0-346c-4762-9ede-ed58944b6971.json and https://artists.proofprofile.net/proofs/artist/d83cf8a0-346c-4762-9ede-ed58944b6971.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:36:58Z
  text: {"copyright_id":"0x1821e99282d9e705727338d339e98f9824e6d47dcb10ced058af2f33b0d0085d","name":"Las Vulpes","registered_at":"2026-06-21T03:29:55Z","symbol":"NIM1806339","token_address":"0x40b4cfcd10402877ea90b0cb127139a84ee4aefc","type":"artist","uuid":"d83cf8a0-346c-4762-9ede-ed58944b6971"}
album: Barbarela 83 (En Vivo)
  type: MusicAlbum
  date published: 1983-05-20
  track: Me Gusta Ser Una Zorra - En Vivo
    type: MusicRecording
    duration: PT2M50S
    duration ms: 170424
    explicit: true
    by artist: Las Vulpes
    in album: Barbarela 83 (En Vivo)
      type: MusicAlbum
      date published: 1983-05-20
    genre: hardcore punk
    isrc code: GBSMU8456561
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T08:30:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x509c4244d1b424ba0ffdf6f5880f0257b1fabfa21f835ba166593d768e5d5611
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959114
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959114
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU8456561
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T08:41:42Z
    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 0x509c4244d1b424ba0ffdf6f5880f0257b1fabfa21f835ba166593d768e5d5611. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/GBSMU8456561.
      date published: 2026-07-22T08:41:42Z
    audio: Me Gusta Ser Una Zorra - En Vivo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 94.65
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.118
      additional property: Energy
        type: PropertyValue
        value: 0.885
      additional property: Speechiness
        type: PropertyValue
        value: 0.08
      additional property: Acousticness
        type: PropertyValue
        value: 0.183
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.629
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.328
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.18
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major