Mário Pacheco
type: MusicGroup
genre: fado
popularity: 6
followers: 914
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x875c11bde5c5f21c33c76eb40f0b43c2a262554d69da06c1b4d82778acbbe7fa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dd241c9e-9a10-4682-ae22-721dc623d0c0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dd241c9e-9a10-4682-ae22-721dc623d0c0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dd241c9e-9a10-4682-ae22-721dc623d0c0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x875c11bde5c5f21c33c76eb40f0b43c2a262554d69da06c1b4d82778acbbe7fa","name":"Mário Pacheco","registered_at":"2026-06-21T05:37:58Z","symbol":"NIM1836308","token_address":"0x2d56c7e669c90a492fe8491d11da56b130865b19","type":"artist","uuid":"dd241c9e-9a10-4682-ae22-721dc623d0c0"}
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 0x875c11bde5c5f21c33c76eb40f0b43c2a262554d69da06c1b4d82778acbbe7fa. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd241c9e-9a10-4682-ae22-721dc623d0c0.json and https://artists.proofprofile.net/proofs/artist/dd241c9e-9a10-4682-ae22-721dc623d0c0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x875c11bde5c5f21c33c76eb40f0b43c2a262554d69da06c1b4d82778acbbe7fa","name":"Mário Pacheco","registered_at":"2026-06-21T05:37:58Z","symbol":"NIM1836308","token_address":"0x2d56c7e669c90a492fe8491d11da56b130865b19","type":"artist","uuid":"dd241c9e-9a10-4682-ae22-721dc623d0c0"}
album: Um Outro Olhar
  type: MusicAlbum
  date published: 1993-01-01
album: A Musica e a Guitarra
  type: MusicAlbum
  date published: 2006-03-17
  track: Há uma Música do Povo (feat. Mariza)
    type: MusicRecording
    duration: PT3M24S
    duration ms: 204266
    explicit: false
    by artist: Mário Pacheco
    in album: A Musica e a Guitarra
      type: MusicAlbum
      date published: 2006-03-17
    genre: fado
    isrc code: PT2KB0600014
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T06:16:34+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7b5c0760303c8e07cf8a2af8c53332b8f2c42855568766d62affb7fed92c3e24
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956776
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956776
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PT2KB0600014
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:59:37Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5c0760303c8e07cf8a2af8c53332b8f2c42855568766d62affb7fed92c3e24. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PT2KB0600014.
      date published: 2026-07-05T10:59:37Z
    audio: Há uma Música do Povo (feat. Mariza)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.245
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.412
      additional property: Energy
        type: PropertyValue
        value: 0.417
      additional property: Speechiness
        type: PropertyValue
        value: 0.056
      additional property: Acousticness
        type: PropertyValue
        value: 0.838
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.733
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.245
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.202
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: A Musica E A Guitarra - Clube De Fado
  type: MusicAlbum
  date published: 2007-04-08
album: Clube De Fado A Musica e a Guitarra
  type: MusicAlbum
  date published: 2007-04-16
album: Strange Times
  type: MusicAlbum
  date published: 2021-02-02
album: Para Laura
  type: MusicAlbum
  date published: 2021-03-12
album: Há Uma Música do Povo (feat. Jaques Morelenbaum)
  type: MusicAlbum
  date published: 2021-06-25
album: Livre
  type: MusicAlbum
  date published: 2021-11-19