Grupo de Fados da Faculdade de Engenharia da Universidade do Porto
type: MusicGroup
genre: fado
popularity: 8
followers: 605
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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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
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  date published: 2026-06-19T03:51:26Z
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album: 20 Anos
  type: MusicAlbum
  date published: 2008-10-18
  track: A Meia Noite ao Luar
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    by artist: Grupo de Fados da Faculdade de Engenharia da Universidade do Porto
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      type: MusicAlbum
      date published: 2008-10-18
    genre: fado
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    additional property: OTSTimestamp
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    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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1373f7c3187a13b9292f09d7145f0213953d415a6d385918374608cb56671d87. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/USDHM0807772.
      date published: 2026-07-18T00:27:51Z
    audio: A Meia Noite ao Luar
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      additional property: Acousticness
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      additional property: Valence (Positivity)
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  track: As Nossas Capas
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    by artist: Grupo de Fados da Faculdade de Engenharia da Universidade do Porto
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      type: MusicAlbum
      date published: 2008-10-18
    genre: fado
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    additional property: OTSTimestamp
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    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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ab19d9c88d046c9f7d7abb720a27eec2287cbe2f4cf945e0806e107b4e8aa9. 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/USDHM0807781.
      date published: 2026-07-05T10:59:37Z
    audio: As Nossas Capas
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        type: PropertyValue
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      additional property: Danceability
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      additional property: Energy
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      additional property: Speechiness
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      additional property: Acousticness
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      additional property: Instrumentalness
        type: PropertyValue
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      additional property: Liveness
        type: PropertyValue
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      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Variações sobre um Fado
album: 35 Anos de Tradições Que Unem Gerações (Ao Vivo)

Loudness (dB)
type: PropertyValue
value: -6.494

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Minor

Variações sobre um Fado
type: MusicAlbum
date published: 2016-10-18

35 Anos de Tradições Que Unem Gerações (Ao Vivo)
type: MusicAlbum
date published: 2024-09-14