Marcus Santos
type: MusicGroup
genre: seresta
description: Marcus Vinícius Teixeira Soares dos Santos (born 17 April 1979) is a Brazilian-Portuguese politician and former mixed-martial arts athlete. He has served as a deputy in the Assembly of the Republic f
popularity: 3
followers: 214
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSVerifyInstructions
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  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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0524b6f30e6144de11134ec49c18554ecb31a9b46ebdb81459a8bce02b1a20a. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/856f8deb-288d-4682-8fe1-d5c27a598b5b.json and https://artists.proofprofile.net/proofs/artist/856f8deb-288d-4682-8fe1-d5c27a598b5b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
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album: Vol. 01 - Seguir Sozinho
  type: MusicAlbum
  date published: 2021-04-17
album: Os Dois Lados
  type: MusicAlbum
  date published: 2022-07-15
album: Serestão do Embaixador da Sofrência 2023
  type: MusicAlbum
  date published: 2023-05-16
album: Eu Pago pra Ver
  type: MusicAlbum
  date published: 2023-11-01
  track: Eu Pago pra Ver
    type: MusicRecording
    duration: PT3M53S
    duration ms: 233102
    explicit: true
    by artist: Marcus Santos
    in album: Eu Pago pra Ver
      type: MusicAlbum
      date published: 2023-11-01
    genre: seresta
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T22:08:19Z
    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 0xfabf439afa2c9ac05b59fb2f75d7cf6b93cc667c2dc881dad64a931ea326fcd4. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZW9K2357372.
      date published: 2026-07-20T22:08:19Z
    audio: Eu Pago pra Ver
      type: AudioObject
      additional property: Tempo (BPM)
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      additional property: Musical Key
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      additional property: Mode (Major/Minor)
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        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      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
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        value: 0
      additional property: Liveness
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      additional property: Valence (Positivity)
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        value: 0.711
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.915
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Serestão do Embaixador 2.0 (Ao Vivo)
  type: MusicAlbum
  date published: 2024-04-27
album: Eu Pago pra Ver
  type: MusicAlbum
  date published: 2024-10-11
album: Brega do Embaixador
  type: MusicAlbum
  date published: 2025-04-10