4 De Durango
type: MusicGroup
popularity: 6
followers: 98
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x64c3899502b2daa4196b7d221553d35a27a7c1572f78d4b8b07135ea27e7f691
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a4a88cba-625b-405e-864b-48d9c6dc7db4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a4a88cba-625b-405e-864b-48d9c6dc7db4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a4a88cba-625b-405e-864b-48d9c6dc7db4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x64c3899502b2daa4196b7d221553d35a27a7c1572f78d4b8b07135ea27e7f691","name":"4 De Durango","registered_at":"2026-06-20T07:01:55Z","symbol":"NIM1548398","token_address":"0x9e539c02d87fcfb57cc73a127c341d3f598c7b67","type":"artist","uuid":"a4a88cba-625b-405e-864b-48d9c6dc7db4"}
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 0x64c3899502b2daa4196b7d221553d35a27a7c1572f78d4b8b07135ea27e7f691. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4a88cba-625b-405e-864b-48d9c6dc7db4.json and https://artists.proofprofile.net/proofs/artist/a4a88cba-625b-405e-864b-48d9c6dc7db4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x64c3899502b2daa4196b7d221553d35a27a7c1572f78d4b8b07135ea27e7f691","name":"4 De Durango","registered_at":"2026-06-20T07:01:55Z","symbol":"NIM1548398","token_address":"0x9e539c02d87fcfb57cc73a127c341d3f598c7b67","type":"artist","uuid":"a4a88cba-625b-405e-864b-48d9c6dc7db4"}
album: Corrido De Canelas
  type: MusicAlbum
  date published: 2020-04-06
album: Vuelven Con Puros Exitos
  type: MusicAlbum
  date published: 2020-04-06
album: 14 Canonazos Nortenos
  type: MusicAlbum
  date published: 2020-04-06
album: La Muerte De Un Grande
  type: MusicAlbum
  date published: 2020-04-06
album: En Vivo
  type: MusicAlbum
  date published: 2020-04-11
  track: El Ochito (En Vivo)
    type: MusicRecording
    duration: PT2M48S
    duration ms: 168186
    explicit: false
    by artist: 4 De Durango
    in album: En Vivo
      type: MusicAlbum
      date published: 2020-04-11
    isrc code: USANG2067082
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T09:25:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7ae12ce4f9669646837c0631119f8657e6c3ce78c0d212c69aa801730bc8a1b1
    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/USANG2067082
    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 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 0x7ae12ce4f9669646837c0631119f8657e6c3ce78c0d212c69aa801730bc8a1b1. 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/USANG2067082.
      date published: 2026-07-03T19:59:51Z
    audio: El Ochito (En Vivo)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 197.676
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.454
      additional property: Energy
        type: PropertyValue
        value: 0.693
      additional property: Speechiness
        type: PropertyValue
        value: 0.315
      additional property: Acousticness
        type: PropertyValue
        value: 0.39
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.526
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.735
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.758
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major