Guilherme Silveira
type: MusicGroup
popularity: 4
followers: 45
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc18997be59ed547c514049456a197b96bc40381d32b113249a0a6d635244c4e6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953984
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953984
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2cd404cc-0100-4288-8004-735b4532371c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2cd404cc-0100-4288-8004-735b4532371c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2cd404cc-0100-4288-8004-735b4532371c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T18:08:34Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc18997be59ed547c514049456a197b96bc40381d32b113249a0a6d635244c4e6","name":"Guilherme Silveira","registered_at":"2026-06-16T05:28:11Z","symbol":"NIM0951758","token_address":"0x5fc1b0aad6d6d7cad126c4dfc6243f0139fe5d54","type":"artist","uuid":"2cd404cc-0100-4288-8004-735b4532371c"}
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 0xc18997be59ed547c514049456a197b96bc40381d32b113249a0a6d635244c4e6. Chain 2 (Bitcoin): anchored in block 953985 (2026-06-16T18:03:53Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2cd404cc-0100-4288-8004-735b4532371c.json and https://artists.proofprofile.net/proofs/artist/2cd404cc-0100-4288-8004-735b4532371c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T18:03:53Z
  text: {"copyright_id":"0xc18997be59ed547c514049456a197b96bc40381d32b113249a0a6d635244c4e6","name":"Guilherme Silveira","registered_at":"2026-06-16T05:28:11Z","symbol":"NIM0951758","token_address":"0x5fc1b0aad6d6d7cad126c4dfc6243f0139fe5d54","type":"artist","uuid":"2cd404cc-0100-4288-8004-735b4532371c"}
album: Un Autre Sens
  type: MusicAlbum
  date published: 2023-06-12
album: Guilherme Silveira
  type: MusicAlbum
  date published: 2024-05-08
  track: Sei Não!
    type: MusicRecording
    duration: PT3M55S
    duration ms: 235227
    explicit: false
    by artist: Guilherme Silveira
    in album: Guilherme Silveira
      type: MusicAlbum
      date published: 2024-05-08
    isrc code: FR9W12420786
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T21:41:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x83fb11bdb06634652fc62d7ab0ad398a2e63ba1e8b1347b443dd0097062dde63
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958462
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958462
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12420786
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T23:17:53Z
    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 0x83fb11bdb06634652fc62d7ab0ad398a2e63ba1e8b1347b443dd0097062dde63. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/FR9W12420786.
      date published: 2026-07-17T23:17:53Z
    audio: Sei Não!
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 114.909
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.754
      additional property: Energy
        type: PropertyValue
        value: 0.755
      additional property: Speechiness
        type: PropertyValue
        value: 0.049
      additional property: Acousticness
        type: PropertyValue
        value: 0.83
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.905
      additional property: Liveness
        type: PropertyValue
        value: 0.124
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.679
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.803
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Enviesado
  type: MusicAlbum
  date published: 2025-01-01
album: Montmartre
  type: MusicAlbum
  date published: 2025-01-17
album: Maracatu Saudade
  type: MusicAlbum
  date published: 2025-07-19