Lucas Rocha
type: MusicGroup
popularity: 14
followers: 256
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdf9dae02ed168d03a4701f9590ba090bdd5fe30ab8cd4df51cd858802c556dfb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953596
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953596
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/09b78de1-4d14-46e8-8531-853f49699f2b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/09b78de1-4d14-46e8-8531-853f49699f2b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/09b78de1-4d14-46e8-8531-853f49699f2b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T06:21:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdf9dae02ed168d03a4701f9590ba090bdd5fe30ab8cd4df51cd858802c556dfb","name":"Lucas Rocha","registered_at":"2026-06-14T05:26:45Z","symbol":"NIM0352456","token_address":"0x763380df8733f4107b8021bd6731edb2e6062acd","type":"artist","uuid":"09b78de1-4d14-46e8-8531-853f49699f2b"}
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 0xdf9dae02ed168d03a4701f9590ba090bdd5fe30ab8cd4df51cd858802c556dfb. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09b78de1-4d14-46e8-8531-853f49699f2b.json and https://artists.proofprofile.net/proofs/artist/09b78de1-4d14-46e8-8531-853f49699f2b.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T06:21:39Z
  text: {"copyright_id":"0xdf9dae02ed168d03a4701f9590ba090bdd5fe30ab8cd4df51cd858802c556dfb","name":"Lucas Rocha","registered_at":"2026-06-14T05:26:45Z","symbol":"NIM0352456","token_address":"0x763380df8733f4107b8021bd6731edb2e6062acd","type":"artist","uuid":"09b78de1-4d14-46e8-8531-853f49699f2b"}
album: Sim É Possível
  type: MusicAlbum
  date published: 2020-01-09
album: Sim, É Possível
  type: MusicAlbum
  date published: 2020-10-15
album: Lágrimas
  type: MusicAlbum
  date published: 2021-08-09
  track: Lágrimas
    type: MusicRecording
    duration: PT4M32S
    duration ms: 272000
    explicit: false
    by artist: Lucas Rocha
    in album: Lágrimas
      type: MusicAlbum
      date published: 2021-08-09
    isrc code: QZMZ92146151
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T11:43:36+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa5fbf532466d29511650411f2570269f3f3e73055276c7eaacc69f41048e9fca
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958286
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958286
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMZ92146151
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T12:43:37Z
    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 0xa5fbf532466d29511650411f2570269f3f3e73055276c7eaacc69f41048e9fca. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZMZ92146151 — a six-check JSON result.
      date published: 2026-07-16T12:43:37Z
    audio: Lágrimas
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 85.002
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.725
      additional property: Energy
        type: PropertyValue
        value: 0.45
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.22
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.064
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.851
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.267
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Vaidade
  type: MusicAlbum
  date published: 2021-12-16
album: Sim É Possível
  type: MusicAlbum
  date published: 2021-12-22
album: Recomeçar
  type: MusicAlbum
  date published: 2022-01-03
  track: Vaidade
    type: MusicRecording
    duration: PT4M12S
    duration ms: 252492
    explicit: false
    by artist: Lucas Rocha
    in album: Recomeçar
      type: MusicAlbum
      date published: 2022-01-03
    isrc code: QZTPX2114868
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T06:28:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbe1865d523a516c8f8aab4dd2f986c5fc724b85d713ff5d3b791f603068c5e21
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956474
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956474
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTPX2114868
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T08:56:35Z
    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 0xbe1865d523a516c8f8aab4dd2f986c5fc724b85d713ff5d3b791f603068c5e21. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTPX2114868 — a six-check JSON result.
      date published: 2026-07-03T08:56:35Z
    audio: Vaidade
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 116.987
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.805
      additional property: Energy
        type: PropertyValue
        value: 0.362
      additional property: Speechiness
        type: PropertyValue
        value: 0.062
      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: Resiliente
album: Esperar
album: Tudo Bem
album: Onda Perfeita
album: Eu Sou Teu (Cover)

Acousticness
type: PropertyValue
value: 0.011

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.106

Valence (Positivity)
type: PropertyValue
value: 0.543

Loudness (dB)
type: PropertyValue
value: -11.034

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Minor

Resiliente
type: MusicAlbum
date published: 2022-02-01

Esperar
type: MusicAlbum
date published: 2022-09-15

Tudo Bem
type: MusicAlbum
date published: 2023-02-03

Onda Perfeita
type: MusicAlbum
date published: 2025-03-13

Eu Sou Teu (Cover)
type: MusicAlbum
date published: 2025-04-02