Léo Stronda
type: MusicGroup
description: Leonardo Schulz Cardoso (born July 5, 1992), also known as Leo Stronda, is a Brazilian bodybuilder, YouTuber and former rapper. He was vocalist and one of the founders of the hip-hop duo Bonde da S
popularity: 38
followers: 95075
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x62694095b7c0e5928afc0eb5a02542cfd842ed547203e164f6b9834377b8d90c
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additional property: OTSProofURL
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additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/artist/99ad64a8-d3bd-4ac5-a613-8e6f3f680622.json
additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62694095b7c0e5928afc0eb5a02542cfd842ed547203e164f6b9834377b8d90c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99ad64a8-d3bd-4ac5-a613-8e6f3f680622.json and https://artists.proofprofile.net/proofs/artist/99ad64a8-d3bd-4ac5-a613-8e6f3f680622.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
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album: Vem Monstro
  type: MusicAlbum
  date published: 2017-12-01
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    by artist: Léo Stronda
    in album: Vem Monstro
      type: MusicAlbum
      date published: 2017-12-01
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    additional property: OTSVerifyInstructions
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      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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c8f5df40b8fdd3e76a6b8835ed7edbf5940d8e669766ca6c8027fa04ebedbb. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BXHCZ1700003.
      date published: 2026-07-04T11:19:20Z
    audio: MDMA
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
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      additional property: Time Signature
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      additional property: Danceability
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      additional property: Instrumentalness
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      additional property: Liveness
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      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.054
      additional property: Loudness (dB)
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      additional property: Key Name
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      additional property: Mode Name
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album: Deixa Rolar
  type: MusicAlbum
  date published: 2019-04-03
album: Esmaga
  type: MusicAlbum
  date published: 2019-04-04
album: Jlo
  type: MusicAlbum
  date published: 2020-02-12
album: Veneno
  type: MusicAlbum
  date published: 2020-07-02
album: Savanah
  type: MusicAlbum
  date published: 2021-01-21
  track: Savanah
    type: MusicRecording
    duration: PT3M4S
    duration ms: 184137
    explicit: true
    by artist: Léo Stronda
    in album: Savanah
      type: MusicAlbum
      date published: 2021-01-21
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    additional property: OTSVerificationAPI
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    additional property: OTSTimestamp
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    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 0x8b66890d15a8a19406578a82afb806bccbf19d912756a4114b2684cdc3250c61. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZ5AB2109876.
      date published: 2026-07-02T16:51:38Z
    audio: Savanah
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 149.859
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
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      additional property: Energy
        type: PropertyValue
        value: 0.788
      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
album: Fenomenal
album: Landergold

Speechiness
type: PropertyValue
value: 0.094

Acousticness
type: PropertyValue
value: 0.277

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.1

Valence (Positivity)
type: PropertyValue
value: 0.566

Loudness (dB)
type: PropertyValue
value: -6.824

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Major

Fenomenal
type: MusicAlbum
date published: 2021-02-26

Landergold
type: MusicAlbum
date published: 2021-07-09

Esmaga
type: MusicAlbum
date published: 2021-09-20