Felipe Barros
type: MusicGroup
description: Felipe de Oliveira Barros (born 5 August 1994) is a Brazilian football player who plays for Ríver Atlético Clube. Playing career Felipe played for J2 League club; Yokohama FC from 2014 to 2015.J.Leag
popularity: 12
followers: 450
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSCanonicalRecord
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674321907c9aa939289daebceabac3f9356b6a6a672142eef531d882e094e40e. Chain 2 (Bitcoin): anchored in block 953681 (2026-06-14T19:31:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/645b2777-5926-443e-b0b2-c6f9489476f1.json and https://artists.proofprofile.net/proofs/artist/645b2777-5926-443e-b0b2-c6f9489476f1.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T19:31:23Z
  text: {"copyright_id":"0x674321907c9aa939289daebceabac3f9356b6a6a672142eef531d882e094e40e","name":"Felipe Barros","registered_at":"2026-06-14T15:00:40Z","symbol":"NIM0489343","token_address":"0x6291f3af0f90bdf1e93bbdf22d77ddf9abae7631","type":"artist","uuid":"645b2777-5926-443e-b0b2-c6f9489476f1"}
album: Único
  type: MusicAlbum
  date published: 2022-01-26
album: Como Um Oceano
  type: MusicAlbum
  date published: 2023-11-10
album: Adão
  type: MusicAlbum
  date published: 2024-02-23
album: Lembre-me
  type: MusicAlbum
  date published: 2024-06-28
album: Lembre-me
  type: MusicAlbum
  date published: 2024-06-28
album: Vital
  type: MusicAlbum
  date published: 2024-08-09
  track: Vital
    type: MusicRecording
    duration: PT3M45S
    duration ms: 225805
    explicit: false
    by artist: Felipe Barros
    in album: Vital
      type: MusicAlbum
      date published: 2024-08-09
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      type: PropertyValue
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXTB12400159
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6990b2d562be243c0e72b0cbf52643fe77ce8b1728b4558b8c2a3b7a9c94a0b6. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXTB12400159 — a six-check JSON result.
      date published: 2026-07-03T19:59:51Z
    audio: Vital
      type: AudioObject
      additional property: Tempo (BPM)
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        value: 75.117
      additional property: Musical Key
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      additional property: Mode (Major/Minor)
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      additional property: Time Signature
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        value: 1
      additional property: Danceability
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      additional property: Energy
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      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.478
      additional property: Instrumentalness
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        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.233
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.405
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.274
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Como um Oceano (Ao Vivo)
  type: MusicAlbum
  date published: 2025-05-01
  track: Como um Oceano - Ao Vivo
    type: MusicRecording
    duration: PT4M57S
    duration ms: 297142
    explicit: false
    by artist: Felipe Barros
    in album: Como um Oceano (Ao Vivo)
      type: MusicAlbum
      date published: 2025-05-01
    isrc code: QZNJV2511400
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      value: registered
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    additional property: OTSVerificationAPI
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T18:42:38Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd047163685a3013d6102c6434c74eeacb78ae9f69d562a72197122ffe08d829f. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2511400 — a six-check JSON result.
      date published: 2026-07-18T18:42:38Z
    audio: Como um Oceano - Ao Vivo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 125.979
      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: 0.461
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Energy
type: PropertyValue
value: 0.794

Speechiness
type: PropertyValue
value: 0.052

Acousticness
type: PropertyValue
value: 0.016

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.433

Valence (Positivity)
type: PropertyValue
value: 0.223

Loudness (dB)
type: PropertyValue
value: -9.38

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Minor

Como Um Oceano
type: MusicAlbum
date published: 2025-05-01