Mr.Leozin
type: MusicGroup
popularity: 19
followers: 71
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x13903ebf8da977752106831edfbd143a5aca9a401da1d8484c516b84d00d683c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953791
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953791
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/de99eac3-1a43-4f5a-8837-3b974e716891.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/de99eac3-1a43-4f5a-8837-3b974e716891.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/de99eac3-1a43-4f5a-8837-3b974e716891
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T13:40:30Z
additional property: OTSCanonicalRecord
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 0x13903ebf8da977752106831edfbd143a5aca9a401da1d8484c516b84d00d683c. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de99eac3-1a43-4f5a-8837-3b974e716891.json and https://artists.proofprofile.net/proofs/artist/de99eac3-1a43-4f5a-8837-3b974e716891.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T13:40:30Z
album: LeBron James Freestyle
  type: MusicAlbum
  date published: 2024-02-04
album: florida freestyle
  type: MusicAlbum
  date published: 2025-07-08
album: Mp4
  type: MusicAlbum
  date published: 2025-07-25
album: moeda
  type: MusicAlbum
  date published: 2025-07-25
album: Don’t worry about a thing
  type: MusicAlbum
  date published: 2025-07-25
album: Algumas merdas
  type: MusicAlbum
  date published: 2025-07-25
album: quanto tempo
  type: MusicAlbum
  date published: 2025-07-25
album: Lobisomem
  type: MusicAlbum
  date published: 2025-07-25
album: Workaholics mixtape
  type: MusicAlbum
  date published: 2025-07-26
  track: moeda
    type: MusicRecording
    duration: PT2M3S
    duration ms: 123620
    explicit: false
    by artist: Mr.Leozin
    in album: Workaholics mixtape
      type: MusicAlbum
      date published: 2025-07-26
    isrc code: QZWV32561187
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T06:05:04+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5318a50b7d7674182739469eec6a6b3a94d788466c8100ea9a462c5820f5ff56
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958251
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958251
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWV32561187
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T06:29:25Z
    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 0x5318a50b7d7674182739469eec6a6b3a94d788466c8100ea9a462c5820f5ff56. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZWV32561187.
      date published: 2026-07-16T06:29:25Z
    audio: moeda
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 72.552
      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: 0.545
      additional property: Energy
        type: PropertyValue
        value: 0.546
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.522
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.1
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.106
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.499
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Novo Amanhã
  type: MusicAlbum
  date published: 2025-09-13
  track: Novo Amanhã
    type: MusicRecording
    duration: PT1M52S
    duration ms: 112333
    explicit: true
    by artist: Mr.Leozin
    in album: Novo Amanhã
      type: MusicAlbum
      date published: 2025-09-13
    isrc code: QZZ8A2554207
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T12:12:14+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2b10a4aeaafd2404d33d594cafca7413a5eda1041152ca44d32c1db664552090
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958878
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958878
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ8A2554207
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T12:32:15Z
    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 0x2b10a4aeaafd2404d33d594cafca7413a5eda1041152ca44d32c1db664552090. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/QZZ8A2554207.
      date published: 2026-07-20T12:32:15Z
    audio: Novo Amanhã
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 146.204
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Danceability
type: PropertyValue
value: 0.713

Energy
type: PropertyValue
value: 0.555

Speechiness
type: PropertyValue
value: 0.29

Acousticness
type: PropertyValue
value: 0.028

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.431

Valence (Positivity)
type: PropertyValue
value: 0.341

Loudness (dB)
type: PropertyValue
value: -9.042

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major