Tristeza Negra
type: MusicGroup
genre: mexican rock
popularity: 6
followers: 940
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x93430a6b16ce6f3c1c9e9998c1f64fdf610b4692aa098f0d1af64d2b4f5213d1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/18787e74-49c4-477d-8372-41f4860231ba.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/18787e74-49c4-477d-8372-41f4860231ba.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/18787e74-49c4-477d-8372-41f4860231ba
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x93430a6b16ce6f3c1c9e9998c1f64fdf610b4692aa098f0d1af64d2b4f5213d1","name":"Tristeza Negra","registered_at":"2026-06-15T22:03:50Z","symbol":"NIM0845634","token_address":"0x56bbb229d53bed211b7e2426e9014c75e89da1a4","type":"artist","uuid":"18787e74-49c4-477d-8372-41f4860231ba"}
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 0x93430a6b16ce6f3c1c9e9998c1f64fdf610b4692aa098f0d1af64d2b4f5213d1. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/18787e74-49c4-477d-8372-41f4860231ba.json and https://artists.proofprofile.net/proofs/artist/18787e74-49c4-477d-8372-41f4860231ba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x93430a6b16ce6f3c1c9e9998c1f64fdf610b4692aa098f0d1af64d2b4f5213d1","name":"Tristeza Negra","registered_at":"2026-06-15T22:03:50Z","symbol":"NIM0845634","token_address":"0x56bbb229d53bed211b7e2426e9014c75e89da1a4","type":"artist","uuid":"18787e74-49c4-477d-8372-41f4860231ba"}
album: El Vato Ñero
  type: MusicAlbum
  date published: 2021-07-12
  track: El Vato Ñero
    type: MusicRecording
    duration: PT4M16S
    duration ms: 256510
    explicit: false
    by artist: Tristeza Negra
    in album: El Vato Ñero
      type: MusicAlbum
      date published: 2021-07-12
    genre: mexican rock
    isrc code: FRX282189924
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T12:47:16+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5c1d882edac9809e324fb157ad23cfc5ba98e0fa6b54f06b1e1213c3616602cd
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX282189924
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0x5c1d882edac9809e324fb157ad23cfc5ba98e0fa6b54f06b1e1213c3616602cd. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FRX282189924.
      date published: 2026-07-05T01:12:41Z
    audio: El Vato Ñero
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 141.369
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.669
      additional property: Energy
        type: PropertyValue
        value: 0.871
      additional property: Speechiness
        type: PropertyValue
        value: 0.088
      additional property: Acousticness
        type: PropertyValue
        value: 0.104
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.084
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.647
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.552
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Uya Uya La Patrulla
  type: MusicAlbum
  date published: 2024-06-13