MARQUEZ
type: MusicGroup
genre: jazz beats
genre: jazz fusion
popularity: 6
followers: 201
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x628a03de243dfbe0d384d768b0e9af9595e93acf7a235a186a6e4031361dc8c5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/548e53b4-b14d-4933-a692-24f2549271fe.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/548e53b4-b14d-4933-a692-24f2549271fe.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/548e53b4-b14d-4933-a692-24f2549271fe
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
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 0x628a03de243dfbe0d384d768b0e9af9595e93acf7a235a186a6e4031361dc8c5. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/548e53b4-b14d-4933-a692-24f2549271fe.json and https://artists.proofprofile.net/proofs/artist/548e53b4-b14d-4933-a692-24f2549271fe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
album: Boston Years: Season One
  type: MusicAlbum
  date published: 2021-04-30
album: Boston Years: Season One
  type: MusicAlbum
  date published: 2021-04-30
album: 1STDRAFT
  type: MusicAlbum
  date published: 2023-05-23
album: Los Eternos
  type: MusicAlbum
  date published: 2024-03-05
album: Bogotá: una suite en dos partes escrita por Andrés Márquez
  type: MusicAlbum
  date published: 2024-09-06
  track: Parte I
    type: MusicRecording
    duration: PT4M7S
    duration ms: 247849
    explicit: false
    by artist: MARQUEZ
    in album: Bogotá: una suite en dos partes escrita por Andrés Márquez
      type: MusicAlbum
      date published: 2024-09-06
    genre: jazz beats
    genre: jazz fusion
    isrc code: QZTB62490333
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T07:52:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe7588f063c40cd86bf97c7244a535a254324a7c44c18b777f2c0abe5e928e37a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956634
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB62490333
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0xe7588f063c40cd86bf97c7244a535a254324a7c44c18b777f2c0abe5e928e37a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTB62490333.
      date published: 2026-07-04T10:04:33Z
    audio: Parte I
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 81.743
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.26
      additional property: Energy
        type: PropertyValue
        value: 0.633
      additional property: Speechiness
        type: PropertyValue
        value: 0.067
      additional property: Acousticness
        type: PropertyValue
        value: 0.332
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.783
      additional property: Liveness
        type: PropertyValue
        value: 0.337
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.497
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.793
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Soneto de Blanca Poesía
  type: MusicAlbum
  date published: 2024-12-27
album: Cielos
  type: MusicAlbum
  date published: 2025-05-16
album: En Vivo en la Ciudad de México
  type: MusicAlbum
  date published: 2025-08-22
album: Quito (Primera Toma)
  type: MusicAlbum
  date published: 2025-11-07