Leonil
type: MusicGroup
popularity: 15
followers: 837
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfe0ca21d6d664c59d7888e6dbf8dc8dd8a775d79e9838ce5cdacd1468104abeb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953765
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953765
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bc7b5d90-9657-4230-92f5-b840fb2d485d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bc7b5d90-9657-4230-92f5-b840fb2d485d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bc7b5d90-9657-4230-92f5-b840fb2d485d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T08:55:24Z
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 0xfe0ca21d6d664c59d7888e6dbf8dc8dd8a775d79e9838ce5cdacd1468104abeb. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bc7b5d90-9657-4230-92f5-b840fb2d485d.json and https://artists.proofprofile.net/proofs/artist/bc7b5d90-9657-4230-92f5-b840fb2d485d.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T08:55:24Z
album: Guerreiro Absoluto
  type: MusicAlbum
  date published: 2008-02-22
album: Enxugue as Lágrimas
  type: MusicAlbum
  date published: 2012-02-22
album: Só Modão Abençoado
  type: MusicAlbum
  date published: 2021-02-22
  track: Nada em Troca
    type: MusicRecording
    duration: PT3M45S
    duration ms: 225294
    explicit: false
    by artist: Leonil
    in album: Só Modão Abençoado
      type: MusicAlbum
      date published: 2021-02-22
    isrc code: BXGC72100011
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T16:20:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x316ba7bf86b9dc9ab66adbc27b529caf41ae997cea56106c2c4f0dc91c64cda3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958436
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958436
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXGC72100011
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T16:42:22Z
    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 0x316ba7bf86b9dc9ab66adbc27b529caf41ae997cea56106c2c4f0dc91c64cda3. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXGC72100011 — a six-check JSON result.
      date published: 2026-07-17T16:42:22Z
    audio: Nada em Troca
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 102.046
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.642
      additional property: Energy
        type: PropertyValue
        value: 0.654
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.74
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.486
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.724
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.148
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Deus Estava Lá
  type: MusicAlbum
  date published: 2021-03-26
album: Só Modão
  type: MusicAlbum
  date published: 2022-07-26
album: Momentos
  type: MusicAlbum
  date published: 2022-09-15
album: Decreto
  type: MusicAlbum
  date published: 2023-01-28
album: O Valor de uma Alma
  type: MusicAlbum
  date published: 2023-07-21
album: Arma Letal
  type: MusicAlbum
  date published: 2024-01-18
album: O Temporal
  type: MusicAlbum
  date published: 2024-02-24
album: O Grande El Shaddai
  type: MusicAlbum
  date published: 2024-02-24
album: Derrotas Não
  type: MusicAlbum
  date published: 2024-02-24
album: No Final Compensa
  type: MusicAlbum
  date published: 2024-03-09
album: Razão da Minha Vida
  type: MusicAlbum
  date published: 2025-06-09