Marquim D'Morais
type: MusicGroup
popularity: 4
followers: 754
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0c6fdf59ca4418bca4f9d8d02e2b27e631c3ad9a1bfdc608150c1959206f16c1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954623
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954623
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ca7da293-5697-4a1f-a547-41d6c1a53bd9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ca7da293-5697-4a1f-a547-41d6c1a53bd9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ca7da293-5697-4a1f-a547-41d6c1a53bd9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:40:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0c6fdf59ca4418bca4f9d8d02e2b27e631c3ad9a1bfdc608150c1959206f16c1","name":"Marquim D'Morais","registered_at":"2026-06-20T22:48:02Z","symbol":"NIM1737540","token_address":"0x3875ba6db79c05773ba766a5de9a73d40f994dbe","type":"artist","uuid":"ca7da293-5697-4a1f-a547-41d6c1a53bd9"}
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 0x0c6fdf59ca4418bca4f9d8d02e2b27e631c3ad9a1bfdc608150c1959206f16c1. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca7da293-5697-4a1f-a547-41d6c1a53bd9.json and https://artists.proofprofile.net/proofs/artist/ca7da293-5697-4a1f-a547-41d6c1a53bd9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:40:06Z
  text: {"copyright_id":"0x0c6fdf59ca4418bca4f9d8d02e2b27e631c3ad9a1bfdc608150c1959206f16c1","name":"Marquim D'Morais","registered_at":"2026-06-20T22:48:02Z","symbol":"NIM1737540","token_address":"0x3875ba6db79c05773ba766a5de9a73d40f994dbe","type":"artist","uuid":"ca7da293-5697-4a1f-a547-41d6c1a53bd9"}
album: Daqui Até Onde Eu Quiser
  type: MusicAlbum
  date published: 2023-02-01
album: Do Alto do Morro
  type: MusicAlbum
  date published: 2017-07-09
album: Love Song
  type: MusicAlbum
  date published: 2024-03-05
album: Guardado na Íris Está o Amor e a Fração do Tempo
  type: MusicAlbum
  date published: 2023-10-13
album: Corrente
  type: MusicAlbum
  date published: 2023-09-29
album: Maria do Arraial
  type: MusicAlbum
  date published: 2023-09-22
  track: Maria do Arraial
    type: MusicRecording
    duration: PT3M31S
    duration ms: 211844
    explicit: false
    by artist: Duda Dos Anjos
    by artist: Marquim D'Morais
    in album: Maria do Arraial
      type: MusicAlbum
      date published: 2023-09-22
    isrc code: QZTPX2362466
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-07T20:12:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xcd774156ca62a50e6b9a728f4934cd4be0d5aa17b9b4a800d85f9f156938cb5a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957120
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957120
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTPX2362466
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T03:22:41Z
    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 0xcd774156ca62a50e6b9a728f4934cd4be0d5aa17b9b4a800d85f9f156938cb5a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZTPX2362466.
      date published: 2026-07-08T03:22:41Z
    audio: Maria do Arraial
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 155.041
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.723
      additional property: Energy
        type: PropertyValue
        value: 0.605
      additional property: Speechiness
        type: PropertyValue
        value: 0.057
      additional property: Acousticness
        type: PropertyValue
        value: 0.537
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.004
      additional property: Liveness
        type: PropertyValue
        value: 0.105
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.601
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.666
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Ladainha de Angola
  type: MusicAlbum
  date published: 2022-12-16
album: Janaína
  type: MusicAlbum
  date published: 2022-12-09
  track: Janaína
    type: MusicRecording
    duration: PT4M10S
    duration ms: 250000
    explicit: false
    by artist: AMANDONA!
    by artist: Marquim D'Morais
    in album: Janaína
      type: MusicAlbum
      date published: 2022-12-09
    isrc code: BX05Z2200001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-08-01T02:00:38+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x74515a319e6ab030fe64357bc08c60d5bef24b03f1153d5ed54932c65cc775a6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960506
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960506
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX05Z2200001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-08-01T03:50:58Z
    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 0x74515a319e6ab030fe64357bc08c60d5bef24b03f1153d5ed54932c65cc775a6. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/BX05Z2200001.
      date published: 2026-08-01T03:50:58Z
    audio: Janaína
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 121.341
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
      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
album: Fim do Mundo
album: É Dia de Baile
album: Minha Quebra
album: Favela (Ao Vivo)
album: Quinto Andar
album: O Horizonte
album: Canetando Poesia
album: Vida Breve
album: Baile de Favela
album: Como um Rio
album: Bota a Cara
album: Desatando os Nós
album: Do Alto do Morro - Single
album: Levanto Cedo - Single

Danceability
type: PropertyValue
value: 0.59

Energy
type: PropertyValue
value: 0.752

Speechiness
type: PropertyValue
value: 0.04

Acousticness
type: PropertyValue
value: 0.409

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.381

Valence (Positivity)
type: PropertyValue
value: 0.492

Loudness (dB)
type: PropertyValue
value: -12.21

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Major

Fim do Mundo
type: MusicAlbum
date published: 2022-08-07

É Dia de Baile
type: MusicAlbum
date published: 2021-10-31

Minha Quebra
type: MusicAlbum
date published: 2021-05-27

Favela (Ao Vivo)
type: MusicAlbum
date published: 2021-04-19

Quinto Andar
type: MusicAlbum
date published: 2021-03-21

O Horizonte
type: MusicAlbum
date published: 2020-09-30

Canetando Poesia
type: MusicAlbum
date published: 2020-08-20

Vida Breve
type: MusicAlbum
date published: 2020-06-25

Baile de Favela
type: MusicAlbum
date published: 2019-09-11

Como um Rio
type: MusicAlbum
date published: 2018-02-21

Bota a Cara
type: MusicAlbum
date published: 2017-08-09

Desatando os Nós
type: MusicAlbum
date published: 2017-07-24

Do Alto do Morro - Single
type: MusicAlbum
date published: 2017-07-06

Levanto Cedo - Single
type: MusicAlbum
date published: 2017-01-10