Mc Leno
type: MusicGroup
genre: piseiro
popularity: 10
followers: 2283
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x60c29b38452cd89b720d947ed6de17d82a9ac5ec6de626c585f88d55bbac4d45
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/54d405b8-b1ee-4cae-b9e7-f3b0db3604bc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/54d405b8-b1ee-4cae-b9e7-f3b0db3604bc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/54d405b8-b1ee-4cae-b9e7-f3b0db3604bc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x60c29b38452cd89b720d947ed6de17d82a9ac5ec6de626c585f88d55bbac4d45","name":"Mc Leno","registered_at":"2026-06-16T19:13:53Z","symbol":"NIM1148803","token_address":"0x0a38a5b0ada5c5fe5442186455d3edf7a9894439","type":"artist","uuid":"54d405b8-b1ee-4cae-b9e7-f3b0db3604bc"}
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 0x60c29b38452cd89b720d947ed6de17d82a9ac5ec6de626c585f88d55bbac4d45. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/54d405b8-b1ee-4cae-b9e7-f3b0db3604bc.json and https://artists.proofprofile.net/proofs/artist/54d405b8-b1ee-4cae-b9e7-f3b0db3604bc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x60c29b38452cd89b720d947ed6de17d82a9ac5ec6de626c585f88d55bbac4d45","name":"Mc Leno","registered_at":"2026-06-16T19:13:53Z","symbol":"NIM1148803","token_address":"0x0a38a5b0ada5c5fe5442186455d3edf7a9894439","type":"artist","uuid":"54d405b8-b1ee-4cae-b9e7-f3b0db3604bc"}
album: Peça Cromada
  type: MusicAlbum
  date published: 2021-04-14
  track: Envolvido
    type: MusicRecording
    duration: PT3M36S
    duration ms: 216084
    explicit: true
    by artist: Mc Leno
    in album: Peça Cromada
      type: MusicAlbum
      date published: 2021-04-14
    genre: piseiro
    isrc code: QZGLS2163171
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T09:04:29+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb4134e6554e960426b967d4b4f12f006cc438be66bc27928dc0b2df001da3221
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLS2163171
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 0xb4134e6554e960426b967d4b4f12f006cc438be66bc27928dc0b2df001da3221. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZGLS2163171.
      date published: 2026-07-05T10:01:46Z
    audio: Envolvido
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 116.021
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.945
      additional property: Energy
        type: PropertyValue
        value: 0.723
      additional property: Speechiness
        type: PropertyValue
        value: 0.052
      additional property: Acousticness
        type: PropertyValue
        value: 0.457
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.149
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.847
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.348
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Passando Mal
  type: MusicAlbum
  date published: 2021-05-30
album: Play Again
  type: MusicAlbum
  date published: 2021-09-25
album: O Gerente
  type: MusicAlbum
  date published: 2021-09-25
album: Toma Bebê
  type: MusicAlbum
  date published: 2022-06-23
album: Ep de Quebrada
  type: MusicAlbum
  date published: 2023-07-03