Quarteto Vertical
type: MusicGroup
popularity: 7
followers: 710
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf2754c66a3e083fc266f804054b43a21c2d8a25f1aff477c7019868b6546d55e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954017
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954017
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/34da9ff9-a3ee-45f5-9357-c814dc543a43.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/34da9ff9-a3ee-45f5-9357-c814dc543a43.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/34da9ff9-a3ee-45f5-9357-c814dc543a43
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T23:38:33Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf2754c66a3e083fc266f804054b43a21c2d8a25f1aff477c7019868b6546d55e","name":"Quarteto Vertical","registered_at":"2026-06-16T08:18:33Z","symbol":"NIM0992443","token_address":"0x90e6abd53b394256cc747eee8ac26bb57210298c","type":"artist","uuid":"34da9ff9-a3ee-45f5-9357-c814dc543a43"}
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2754c66a3e083fc266f804054b43a21c2d8a25f1aff477c7019868b6546d55e. Chain 2 (Bitcoin): anchored in block 954017 (2026-06-16T23:38:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/34da9ff9-a3ee-45f5-9357-c814dc543a43.json and https://artists.proofprofile.net/proofs/artist/34da9ff9-a3ee-45f5-9357-c814dc543a43.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T23:38:33Z
  text: {"copyright_id":"0xf2754c66a3e083fc266f804054b43a21c2d8a25f1aff477c7019868b6546d55e","name":"Quarteto Vertical","registered_at":"2026-06-16T08:18:33Z","symbol":"NIM0992443","token_address":"0x90e6abd53b394256cc747eee8ac26bb57210298c","type":"artist","uuid":"34da9ff9-a3ee-45f5-9357-c814dc543a43"}
album: Tua Presença
  type: MusicAlbum
  date published: 2018-03-01
album: Eu Louvarei
  type: MusicAlbum
  date published: 2020-01-07
album: Aleluia, Lar Enfim!
  type: MusicAlbum
  date published: 2020-06-07
  track: Aleluia, Lar Enfim!
    type: MusicRecording
    duration: PT2M51S
    duration ms: 171505
    explicit: false
    by artist: Quarteto Vertical
    in album: Aleluia, Lar Enfim!
      type: MusicAlbum
      date published: 2020-06-07
    isrc code: QZHZ42059307
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T19:02:46+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2868fd3fb9e16bd09a707e7c63bdf517e3a91484c3df2e25327147e5a1143ac1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958771
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958771
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ42059307
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T19:27:18Z
    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 0x2868fd3fb9e16bd09a707e7c63bdf517e3a91484c3df2e25327147e5a1143ac1. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/QZHZ42059307.
      date published: 2026-07-19T19:27:18Z
    audio: Aleluia, Lar Enfim!
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 124.859
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.695
      additional property: Energy
        type: PropertyValue
        value: 0.463
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.848
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.16
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.67
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.679
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Maravilhosa Graça
  type: MusicAlbum
  date published: 2020-07-07
album: Quarteto Vertical
  type: MusicAlbum
  date published: 2020-08-10
album: A Minha Paz Te Dou
  type: MusicAlbum
  date published: 2020-08-28
  track: A Minha Paz Te Dou
    type: MusicRecording
    duration: PT2M47S
    duration ms: 167133
    explicit: false
    by artist: Quarteto Vertical
    in album: A Minha Paz Te Dou
      type: MusicAlbum
      date published: 2020-08-28
    isrc code: QZMZ92038822
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T21:21:47+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0f097802d11a37859e2b7d185b304a60ffc1f43acc7164848c02e333a6be68f1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958785
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958785
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMZ92038822
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T21:40:06Z
    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 0x0f097802d11a37859e2b7d185b304a60ffc1f43acc7164848c02e333a6be68f1. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/QZMZ92038822.
      date published: 2026-07-19T21:40:06Z
    audio: A Minha Paz Te Dou
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 79.646
      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: 0.455
      additional property: Energy
        type: PropertyValue
        value: 0.324
      additional property: Speechiness
        type: PropertyValue
        value: 0.027
      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
album: Habita em Mim
album: Quão Rico Eu Sou
album: Remido Fui
album: Campeão do Amor
album: O Primeiro Milagre É Confiar
album: Ele É
album: Acredite
album: O Que Ele Fez por Mim
album: Você Será Só Meu
album: Abertura / Vou Celebrar
album: Vem Entrega Tua Vida

Acousticness
type: PropertyValue
value: 0.876

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.182

Valence (Positivity)
type: PropertyValue
value: 0.302

Loudness (dB)
type: PropertyValue
value: -8.357

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major

Habita em Mim
type: MusicAlbum
date published: 2020-09-13

Quão Rico Eu Sou
type: MusicAlbum
date published: 2020-12-14

Remido Fui
type: MusicAlbum
date published: 2023-12-29

Campeão do Amor
type: MusicAlbum
date published: 2023-12-31

O Primeiro Milagre É Confiar
type: MusicAlbum
date published: 2024-03-20

Ele É
type: MusicAlbum
date published: 2024-05-31

Acredite
type: MusicAlbum
date published: 2024-07-12

O Que Ele Fez por Mim
type: MusicAlbum
date published: 2024-07-26

Você Será Só Meu
type: MusicAlbum
date published: 2024-09-27

Você Será Só Meu
type: MusicAlbum
date published: 2024-09-27

Abertura / Vou Celebrar
type: MusicAlbum
date published: 2025-05-01

Vem Entrega Tua Vida
type: MusicAlbum
date published: 2025-10-03