Osvaldo Lemos
type: MusicGroup
genre: brega
genre: seresta
genre: tecnobrega
popularity: 23
followers: 2088
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4a9b2ed16b884efb98c130a200625f539dda8e5c58b930e04b524a6ea7a7a3d9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/918dedce-0757-46de-914e-9ecde109c2e0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/918dedce-0757-46de-914e-9ecde109c2e0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/918dedce-0757-46de-914e-9ecde109c2e0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4a9b2ed16b884efb98c130a200625f539dda8e5c58b930e04b524a6ea7a7a3d9","name":"Osvaldo Lemos","registered_at":"2026-06-12T04:32:09Z","symbol":"NIM0187756","token_address":"0x73e7b729376e03734005700bbab2798214b358b4","type":"artist","uuid":"918dedce-0757-46de-914e-9ecde109c2e0"}
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 0x4a9b2ed16b884efb98c130a200625f539dda8e5c58b930e04b524a6ea7a7a3d9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/918dedce-0757-46de-914e-9ecde109c2e0.json and https://artists.proofprofile.net/proofs/artist/918dedce-0757-46de-914e-9ecde109c2e0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0x4a9b2ed16b884efb98c130a200625f539dda8e5c58b930e04b524a6ea7a7a3d9","name":"Osvaldo Lemos","registered_at":"2026-06-12T04:32:09Z","symbol":"NIM0187756","token_address":"0x73e7b729376e03734005700bbab2798214b358b4","type":"artist","uuid":"918dedce-0757-46de-914e-9ecde109c2e0"}
album: Em Ritmo de Seresta
  type: MusicAlbum
  date published: 1905-06-26
album: Tá Na Hora
  type: MusicAlbum
  date published: 1987
album: O Cantor Apaixonado do Brasil
  type: MusicAlbum
  date published: 2001-01-20
  track: Thesca
    type: MusicRecording
    duration: PT3M39S
    duration ms: 219933
    explicit: false
    by artist: Osvaldo Lemos
    in album: O Cantor Apaixonado do Brasil
      type: MusicAlbum
      date published: 2001-01-20
    genre: brega
    genre: seresta
    genre: tecnobrega
    isrc code: BRTGM2000576
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
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      type: PropertyValue
      value: 2026-07-21T03:54:01+00:00
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      type: PropertyValue
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958963
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTGM2000576
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T04:02:02Z
    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 0x9ea391b7f92435589ec38265d16d52bd8c745b7e2d2621dd488d1896a384dc45. Chain 2 (Bitcoin): anchored in block 958963 (2026-07-21T04:02:02Z), 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/BRTGM2000576.
      date published: 2026-07-21T04:02:02Z
    audio: Thesca
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 125.958
      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
        type: PropertyValue
        value: 0.769
      additional property: Energy
        type: PropertyValue
        value: 0.476
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.67
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.038
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.897
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.066
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Agora É Tarde
  type: MusicAlbum
  date published: 2001-01-20
album: Sempre Só: Vol. 3
  type: MusicAlbum
  date published: 2017-12-06
album: Canta Adelino Nascimento
  type: MusicAlbum
  date published: 2019-07-31
album: O Novo Ídolo Apaixonado Do Povão
  type: MusicAlbum
  date published: 2022-02-18
album: Coração Bandoleiro
  type: MusicAlbum
  date published: 2022-02-25
album: O Seresteiro Apaixonado
  type: MusicAlbum
  date published: 2022-03-11
  track: Pobrezinha
    type: MusicRecording
    duration: PT3M14S
    duration ms: 194068
    explicit: false
    by artist: Osvaldo Lemos
    in album: O Seresteiro Apaixonado
      type: MusicAlbum
      date published: 2022-03-11
    genre: brega
    genre: seresta
    genre: tecnobrega
    isrc code: BXCND2200796
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
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    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T06:13:03+00:00
    additional property: CopyrightChainExplorerURL
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    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956484
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXCND2200796
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T10:47:44Z
    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 0x4a673c83f4ea1619a3c4ff9afaedee05fb92a7e34d2bb0a4eea9090190cf084c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/BXCND2200796.
      date published: 2026-07-03T10:47:44Z
    audio: Pobrezinha
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.004
      additional property: Musical Key
      additional property: Mode (Major/Minor)
      additional property: Time Signature
      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
album: Apaixonado Por Você
album: A Volta Da Thesca
album: Em Ritmo De Seresta
album: Último Álbum 2011

Musical Key
type: PropertyValue
value: 4

Mode (Major/Minor)
type: PropertyValue
value: 1

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.701

Energy
type: PropertyValue
value: 0.601

Speechiness
type: PropertyValue
value: 0.031

Acousticness
type: PropertyValue
value: 0.338

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.587

Valence (Positivity)
type: PropertyValue
value: 0.861

Loudness (dB)
type: PropertyValue
value: -8.155

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Major

Apaixonado Por Você
type: MusicAlbum
date published: 2022-03-25

A Volta Da Thesca
type: MusicAlbum
date published: 2022-04-08

Em Ritmo De Seresta
type: MusicAlbum
date published: 2022-04-15

Último Álbum 2011
type: MusicAlbum
date published: 2022-04-22