Ef3cto Natural
type: MusicGroup
genre: cumbia
popularity: 11
followers: 432
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x195f07379cb0465e41721378480d4253871bc842ee27245755f7de41570f151f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953657
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953657
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4c982212-1a98-4613-9179-ebb097789389.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4c982212-1a98-4613-9179-ebb097789389.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4c982212-1a98-4613-9179-ebb097789389
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T16:43:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x195f07379cb0465e41721378480d4253871bc842ee27245755f7de41570f151f","name":"Ef3cto Natural","registered_at":"2026-06-14T12:35:32Z","symbol":"NIM0454698","token_address":"0x237135ccfe8578dfd6f77840ca2cffa2a60e1fc2","type":"artist","uuid":"4c982212-1a98-4613-9179-ebb097789389"}
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 0x195f07379cb0465e41721378480d4253871bc842ee27245755f7de41570f151f. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4c982212-1a98-4613-9179-ebb097789389.json and https://artists.proofprofile.net/proofs/artist/4c982212-1a98-4613-9179-ebb097789389.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T16:43:25Z
  text: {"copyright_id":"0x195f07379cb0465e41721378480d4253871bc842ee27245755f7de41570f151f","name":"Ef3cto Natural","registered_at":"2026-06-14T12:35:32Z","symbol":"NIM0454698","token_address":"0x237135ccfe8578dfd6f77840ca2cffa2a60e1fc2","type":"artist","uuid":"4c982212-1a98-4613-9179-ebb097789389"}
album: la diferencia la puedes sentir
  type: MusicAlbum
  date published: 2022-09-18
  track: te quiero dar
    type: MusicRecording
    duration: PT3M6S
    duration ms: 186958
    explicit: false
    by artist: Ef3cto Natural
    in album: la diferencia la puedes sentir
      type: MusicAlbum
      date published: 2022-09-18
    genre: cumbia
    isrc code: QZNWW2296776
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T04:24:19+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6f739059c12aa5bc6f3ad5bcb649a341477ada8586f8bf0f49687788ab2a11e0
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958495
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958495
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2296776
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T04:39:02Z
    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 0x6f739059c12aa5bc6f3ad5bcb649a341477ada8586f8bf0f49687788ab2a11e0. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/QZNWW2296776.
      date published: 2026-07-18T04:39:02Z
    audio: te quiero dar
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 104.792
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.7
      additional property: Energy
        type: PropertyValue
        value: 0.792
      additional property: Speechiness
        type: PropertyValue
        value: 0.048
      additional property: Acousticness
        type: PropertyValue
        value: 0.392
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.197
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.846
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.707
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: que te crees tú
  type: MusicAlbum
  date published: 2023-06-22
album: BAILAME
  type: MusicAlbum
  date published: 2025-10-22