Studio Vocal Marcio Markkx
type: MusicGroup
popularity: 11
followers: 5994
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x772fb1a15632364b80c38ea5a99682c82b3e189de7bf9522296f1f0a233b046d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953736
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953736
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/97c0486b-de1c-4f5f-ad42-71498a4d7eeb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/97c0486b-de1c-4f5f-ad42-71498a4d7eeb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/97c0486b-de1c-4f5f-ad42-71498a4d7eeb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T03:21:19Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x772fb1a15632364b80c38ea5a99682c82b3e189de7bf9522296f1f0a233b046d","name":"Studio Vocal Marcio Markkx","registered_at":"2026-06-14T20:27:47Z","symbol":"NIM0567330","token_address":"0x89875d6df0b709e1e0aa1c2a03ae8e5b819e38f3","type":"artist","uuid":"97c0486b-de1c-4f5f-ad42-71498a4d7eeb"}
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 0x772fb1a15632364b80c38ea5a99682c82b3e189de7bf9522296f1f0a233b046d. Chain 2 (Bitcoin): anchored in block 953736 (2026-06-15T03:21:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/97c0486b-de1c-4f5f-ad42-71498a4d7eeb.json and https://artists.proofprofile.net/proofs/artist/97c0486b-de1c-4f5f-ad42-71498a4d7eeb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T03:21:19Z
  text: {"copyright_id":"0x772fb1a15632364b80c38ea5a99682c82b3e189de7bf9522296f1f0a233b046d","name":"Studio Vocal Marcio Markkx","registered_at":"2026-06-14T20:27:47Z","symbol":"NIM0567330","token_address":"0x89875d6df0b709e1e0aa1c2a03ae8e5b819e38f3","type":"artist","uuid":"97c0486b-de1c-4f5f-ad42-71498a4d7eeb"}
album: Exercícios Para Laringe Estável
  type: MusicAlbum
  date published: 2019-11-08
album: Exercícios Para Quebra Vocal
  type: MusicAlbum
  date published: 2019-11-08
album: Aquecimento Vocal Com Zzz
  type: MusicAlbum
  date published: 2019-11-08
  track: 2 - Zzz Vozes Masculinas
    type: MusicRecording
    duration: PT1M45S
    duration ms: 105683
    explicit: false
    by artist: Studio Vocal Marcio Markkx
    in album: Aquecimento Vocal Com Zzz
      type: MusicAlbum
      date published: 2019-11-08
    isrc code: BX56Y1900028
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T07:11:38+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xebea430c947450ca3dbbf473769c6159ad2239c06cc3f6de2cdc024d7b8fffbd
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958842
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958842
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX56Y1900028
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T10:08:36Z
    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 0xebea430c947450ca3dbbf473769c6159ad2239c06cc3f6de2cdc024d7b8fffbd. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:08:36Z), 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/BX56Y1900028.
      date published: 2026-07-20T10:08:36Z
    audio: 2 - Zzz Vozes Masculinas
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 124.565
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.724
      additional property: Energy
        type: PropertyValue
        value: 0.164
      additional property: Speechiness
        type: PropertyValue
        value: 0.188
      additional property: Acousticness
        type: PropertyValue
        value: 0.859
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.373
      additional property: Liveness
        type: PropertyValue
        value: 0.161
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.378
      additional property: Loudness (dB)
        type: PropertyValue
        value: -16.803
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: 3 - Zzz Vozes Femininas
    type: MusicRecording
    duration: PT1M53S
    duration ms: 113193
    explicit: false
    by artist: Studio Vocal Marcio Markkx
    in album: Aquecimento Vocal Com Zzz
      type: MusicAlbum
      date published: 2019-11-08
    isrc code: BX56Y1900029
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T15:20:43+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8a65eb8eb8a4a45aee4b5c47c3b382ddde8a8d0ef21337e471a480a683ae1231
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958749
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958749
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX56Y1900029
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T18:22:15Z
    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 0x8a65eb8eb8a4a45aee4b5c47c3b382ddde8a8d0ef21337e471a480a683ae1231. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:22:15Z), 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/BX56Y1900029.
      date published: 2026-07-19T18:22:15Z
    audio: 3 - Zzz Vozes Femininas
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 125.464
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.744
      additional property: Energy
        type: PropertyValue
        value: 0.151
      additional property: Speechiness
        type: PropertyValue
        value: 0.235
      additional property: Acousticness
        type: PropertyValue
        value: 0.962
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.513
      additional property: Liveness
        type: PropertyValue
        value: 0.229
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Exercícios Voz de Cabeça Básico
album: Exercícios de Vibrato
album: Exercícios Para Voz de Peito
album: Distorção Vocal Creak
album: Exercícios Voz Mista Básico
album: Montando o Apoio
album: Efeito Inhale - Pig Squeal - Distorção
album: Sustentação de Notas
album: Apoio na Prática
album: O Melhor Exercício da Técnica Vocal

Valence (Positivity)
type: PropertyValue
value: 0.49

Loudness (dB)
type: PropertyValue
value: -18.083

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Major

Exercícios Voz de Cabeça Básico
type: MusicAlbum
date published: 2019-11-08

Exercícios de Vibrato
type: MusicAlbum
date published: 2019-11-08

Exercícios Para Voz de Peito
type: MusicAlbum
date published: 2019-11-10

Distorção Vocal Creak
type: MusicAlbum
date published: 2019-11-22

Exercícios Voz Mista Básico
type: MusicAlbum
date published: 2019-11-22

Montando o Apoio
type: MusicAlbum
date published: 2020-06-04

Efeito Inhale - Pig Squeal - Distorção
type: MusicAlbum
date published: 2020-08-20

Sustentação de Notas
type: MusicAlbum
date published: 2021-07-02

Apoio na Prática
type: MusicAlbum
date published: 2021-07-09

O Melhor Exercício da Técnica Vocal
type: MusicAlbum
date published: 2021-07-16