Mario Carvalho
type: MusicGroup
popularity: 2
followers: 329
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x665157ed6f644b9dd4c532100334f8a0331b51ce0eac9ad2f25963a09040e644
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c314bb78-03b2-4cd2-90f8-01a21e614eb6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c314bb78-03b2-4cd2-90f8-01a21e614eb6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c314bb78-03b2-4cd2-90f8-01a21e614eb6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x665157ed6f644b9dd4c532100334f8a0331b51ce0eac9ad2f25963a09040e644","name":"Mario Carvalho","registered_at":"2026-06-20T20:25:00Z","symbol":"NIM1705132","token_address":"0xde27959d4ada122c3025e8bfdda1a7441e37977e","type":"artist","uuid":"c314bb78-03b2-4cd2-90f8-01a21e614eb6"}
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 0x665157ed6f644b9dd4c532100334f8a0331b51ce0eac9ad2f25963a09040e644. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c314bb78-03b2-4cd2-90f8-01a21e614eb6.json and https://artists.proofprofile.net/proofs/artist/c314bb78-03b2-4cd2-90f8-01a21e614eb6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0x665157ed6f644b9dd4c532100334f8a0331b51ce0eac9ad2f25963a09040e644","name":"Mario Carvalho","registered_at":"2026-06-20T20:25:00Z","symbol":"NIM1705132","token_address":"0xde27959d4ada122c3025e8bfdda1a7441e37977e","type":"artist","uuid":"c314bb78-03b2-4cd2-90f8-01a21e614eb6"}
album: Lambo
  type: MusicAlbum
  date published: 2021-10-09
album: Dior
  type: MusicAlbum
  date published: 2022-03-19
album: Criminoso
  type: MusicAlbum
  date published: 2022-07-09
album: Beatriz
  type: MusicAlbum
  date published: 2022-10-14
album: Ela Sabe Bem
  type: MusicAlbum
  date published: 2024-04-06
album: Beatriz (Remix)
  type: MusicAlbum
  date published: 2024-04-19
album: Melzinha
  type: MusicAlbum
  date published: 2024-05-03
album: Gigante
  type: MusicAlbum
  date published: 2024-12-21
  track: Gigante
    type: MusicRecording
    duration: PT2M34S
    duration ms: 154606
    explicit: false
    by artist: Mario Carvalho
    in album: Gigante
      type: MusicAlbum
      date published: 2024-12-21
    isrc code: QZW9M2403791
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T10:46:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xceb8c2b68ca914702b9a452b9fa82281523806f388a56d5015c18644e10310c0
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959001
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959001
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9M2403791
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T13:47:28Z
    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 0xceb8c2b68ca914702b9a452b9fa82281523806f388a56d5015c18644e10310c0. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:47:28Z), 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/QZW9M2403791.
      date published: 2026-07-21T13:47:28Z
    audio: Gigante
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 149.945
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.684
      additional property: Energy
        type: PropertyValue
        value: 0.467
      additional property: Speechiness
        type: PropertyValue
        value: 0.114
      additional property: Acousticness
        type: PropertyValue
        value: 0.508
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.099
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.857
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.31
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor