Paulo Matrico
type: MusicGroup
genre: forró
popularity: 13
followers: 610
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9240483d0979dba553c1156d069ff75c9a50ccd6d43abd83e920af2060fa3970
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953704
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953704
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7771534a-d68e-4970-8ede-27e2281ef0b0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7771534a-d68e-4970-8ede-27e2281ef0b0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7771534a-d68e-4970-8ede-27e2281ef0b0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:58:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9240483d0979dba553c1156d069ff75c9a50ccd6d43abd83e920af2060fa3970","name":"Paulo Matrico","registered_at":"2026-06-14T17:03:20Z","symbol":"NIM0518616","token_address":"0x4da3c5fc4e615212cf858e34b0645ee04b74adfc","type":"artist","uuid":"7771534a-d68e-4970-8ede-27e2281ef0b0"}
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 0x9240483d0979dba553c1156d069ff75c9a50ccd6d43abd83e920af2060fa3970. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7771534a-d68e-4970-8ede-27e2281ef0b0.json and https://artists.proofprofile.net/proofs/artist/7771534a-d68e-4970-8ede-27e2281ef0b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0x9240483d0979dba553c1156d069ff75c9a50ccd6d43abd83e920af2060fa3970","name":"Paulo Matrico","registered_at":"2026-06-14T17:03:20Z","symbol":"NIM0518616","token_address":"0x4da3c5fc4e615212cf858e34b0645ee04b74adfc","type":"artist","uuid":"7771534a-d68e-4970-8ede-27e2281ef0b0"}
album: Lavradores
  type: MusicAlbum
  date published: 2020-06-01
  track: Galo do Dia
    type: MusicRecording
    duration: PT4M5S
    duration ms: 245906
    explicit: false
    by artist: Paulo Matrico
    in album: Lavradores
      type: MusicAlbum
      date published: 2020-06-01
    genre: forró
    isrc code: BCPP42000104
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T00:44:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc7adc112efef0b175c216c280bacb92c795d3ebdbb231a12bfbd924b553b1e3c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958951
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958951
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCPP42000104
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T03:46:50Z
    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 0xc7adc112efef0b175c216c280bacb92c795d3ebdbb231a12bfbd924b553b1e3c. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:46:50Z), 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/BCPP42000104.
      date published: 2026-07-21T03:46:50Z
    audio: Galo do Dia
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.009
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.759
      additional property: Energy
        type: PropertyValue
        value: 0.52
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.43
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.248
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.911
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.276
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Outro Verso 20 Anos
  type: MusicAlbum
  date published: 2020-11-20
album: Encanto do Sertão (Ao Vivo)
  type: MusicAlbum
  date published: 2020-12-11
album: Junho Também
  type: MusicAlbum
  date published: 2020-12-22
album: Claro, o Coração no Cerrado (Ao Vivo)
  type: MusicAlbum
  date published: 2021-01-05
album: Forrozeio
  type: MusicAlbum
  date published: 2021-01-10
  track: Flor de Alegrias
    type: MusicRecording
    duration: PT3M18S
    duration ms: 198138
    explicit: true
    by artist: Paulo Matrico
    in album: Forrozeio
      type: MusicAlbum
      date published: 2021-01-10
    genre: forró
    isrc code: BCPP42000076
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T07:40:46+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x43103acb69556744cd1040dd8852a5435039256462c8a9a03f85be835356bc41
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958987
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958987
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCPP42000076
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T09:04:56Z
    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 0x43103acb69556744cd1040dd8852a5435039256462c8a9a03f85be835356bc41. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/BCPP42000076.
      date published: 2026-07-21T09:04:56Z
    audio: Flor de Alegrias
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 87.497
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.603
      additional property: Energy
        type: PropertyValue
        value: 0.515
      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

Speechiness
type: PropertyValue
value: 0.032

Acousticness
type: PropertyValue
value: 0.789

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.41

Valence (Positivity)
type: PropertyValue
value: 0.799

Loudness (dB)
type: PropertyValue
value: -8.704

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Major