Dj Léozin do SF
type: MusicGroup
popularity: 3
followers: 170
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3c021262b29a7a1b72d11133d83d0e28a2babd4af3d8b0794231ccc62ef2a580
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f0049a1a-34c8-41ed-b3c3-79e7706fa4bd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f0049a1a-34c8-41ed-b3c3-79e7706fa4bd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f0049a1a-34c8-41ed-b3c3-79e7706fa4bd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3c021262b29a7a1b72d11133d83d0e28a2babd4af3d8b0794231ccc62ef2a580","name":"Dj Léozin do SF","registered_at":"2026-06-21T12:40:06Z","symbol":"NIM1926340","token_address":"0xe1c59e160048848fc8e972ee677da4b74b7d910a","type":"artist","uuid":"f0049a1a-34c8-41ed-b3c3-79e7706fa4bd"}
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 0x3c021262b29a7a1b72d11133d83d0e28a2babd4af3d8b0794231ccc62ef2a580. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f0049a1a-34c8-41ed-b3c3-79e7706fa4bd.json and https://artists.proofprofile.net/proofs/artist/f0049a1a-34c8-41ed-b3c3-79e7706fa4bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x3c021262b29a7a1b72d11133d83d0e28a2babd4af3d8b0794231ccc62ef2a580","name":"Dj Léozin do SF","registered_at":"2026-06-21T12:40:06Z","symbol":"NIM1926340","token_address":"0xe1c59e160048848fc8e972ee677da4b74b7d910a","type":"artist","uuid":"f0049a1a-34c8-41ed-b3c3-79e7706fa4bd"}
album: Menina Indecisa
  type: MusicAlbum
  date published: 2023-09-15
  track: Menina Indecisa
    type: MusicRecording
    duration: PT2M15S
    duration ms: 135230
    explicit: true
    by artist: Dj Léozin do SF
    in album: Menina Indecisa
      type: MusicAlbum
      date published: 2023-09-15
    isrc code: BX4IU2344351
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T02:58:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf8ac10f2e45453e03727b2bafa8526c621c0b92747888893bc79603bc65a968e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958812
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958812
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX4IU2344351
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T03:24:09Z
    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 0xf8ac10f2e45453e03727b2bafa8526c621c0b92747888893bc79603bc65a968e. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/BX4IU2344351.
      date published: 2026-07-20T03:24:09Z
    audio: Menina Indecisa
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130
      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: 0.956
      additional property: Energy
        type: PropertyValue
        value: 0.703
      additional property: Speechiness
        type: PropertyValue
        value: 0.239
      additional property: Acousticness
        type: PropertyValue
        value: 0.234
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.28
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.97
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.339
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor