K Marques
type: MusicGroup
genre: amapiano
popularity: 10
followers: 697
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd0c5ac5262545cb2f6378e7be09c5df95d56b43ad8d4dd562d438ca54f382862
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a8c37758-9a9e-48f0-b304-41c5f21337a3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a8c37758-9a9e-48f0-b304-41c5f21337a3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a8c37758-9a9e-48f0-b304-41c5f21337a3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd0c5ac5262545cb2f6378e7be09c5df95d56b43ad8d4dd562d438ca54f382862","name":"K Marques","registered_at":"2026-06-20T08:42:35Z","symbol":"NIM1569601","token_address":"0x40b9e2514b95890df73783805cdefd6483519f1f","type":"artist","uuid":"a8c37758-9a9e-48f0-b304-41c5f21337a3"}
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 0xd0c5ac5262545cb2f6378e7be09c5df95d56b43ad8d4dd562d438ca54f382862. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8c37758-9a9e-48f0-b304-41c5f21337a3.json and https://artists.proofprofile.net/proofs/artist/a8c37758-9a9e-48f0-b304-41c5f21337a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0xd0c5ac5262545cb2f6378e7be09c5df95d56b43ad8d4dd562d438ca54f382862","name":"K Marques","registered_at":"2026-06-20T08:42:35Z","symbol":"NIM1569601","token_address":"0x40b9e2514b95890df73783805cdefd6483519f1f","type":"artist","uuid":"a8c37758-9a9e-48f0-b304-41c5f21337a3"}
album: A cor do pecado
  type: MusicAlbum
  date published: 2020-10-12
album: Lamu Djika Djika
  type: MusicAlbum
  date published: 2022-08-08
album: Viva à Nhonga
  type: MusicAlbum
  date published: 2024-05-31
album: Viva à Nhonga (Eddy Vincent & Mulinde Remix)
  type: MusicAlbum
  date published: 2025-02-28
  track: Viva à Nhonga - Eddy Vincent & Mulinde Remix
    type: MusicRecording
    duration: PT3M34S
    duration ms: 214012
    explicit: false
    by artist: K Marques
    in album: Viva à Nhonga (Eddy Vincent & Mulinde Remix)
      type: MusicAlbum
      date published: 2025-02-28
    genre: amapiano
    isrc code: USLZJ2583049
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T13:33:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf65a98ed2be4e89fd91d89a83e469ed2f8b304d81ef63ef72a7ee215e2bad863
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLZJ2583049
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0xf65a98ed2be4e89fd91d89a83e469ed2f8b304d81ef63ef72a7ee215e2bad863. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USLZJ2583049.
      date published: 2026-07-05T01:12:41Z
    audio: Viva à Nhonga - Eddy Vincent & Mulinde Remix
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 125.982
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.73
      additional property: Energy
        type: PropertyValue
        value: 0.929
      additional property: Speechiness
        type: PropertyValue
        value: 0.053
      additional property: Acousticness
        type: PropertyValue
        value: 0.006
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.004
      additional property: Liveness
        type: PropertyValue
        value: 0.175
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.708
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.129
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Aqui Tá Animar
  type: MusicAlbum
  date published: 2025-04-07
  track: Aqui Tá Animar
    type: MusicRecording
    duration: PT5M17S
    duration ms: 317687
    explicit: true
    by artist: K Marques
    in album: Aqui Tá Animar
      type: MusicAlbum
      date published: 2025-04-07
    genre: amapiano
    isrc code: QZMZ92550933
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T23:30:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x766d01f5c37f64ed1527967ce36e27394a411fe086560e83d1935a9db67d24a1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958631
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958631
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMZ92550933
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T00:50:09Z
    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 0x766d01f5c37f64ed1527967ce36e27394a411fe086560e83d1935a9db67d24a1. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZMZ92550933.
      date published: 2026-07-19T00:50:09Z
    audio: Aqui Tá Animar
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 116.201
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.621
      additional property: Energy
        type: PropertyValue
        value: 0.725
      additional property: Speechiness
        type: PropertyValue
        value: 0.119
      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: Granda Boda

Acousticness
type: PropertyValue
value: 0.527

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.093

Valence (Positivity)
type: PropertyValue
value: 0.768

Loudness (dB)
type: PropertyValue
value: -8.75

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

Granda Boda
type: MusicAlbum
date published: 2025-10-24