Luis de Arquer
type: MusicGroup
popularity: 5
followers: 421
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5ca0885b2aed4d27fe545d8b9d8d0703bd19dd5ab2b637e50f3d20b158092d1a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954638
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954638
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d5cf8252-357c-4663-8c24-613b54d41e97.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d5cf8252-357c-4663-8c24-613b54d41e97.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d5cf8252-357c-4663-8c24-613b54d41e97
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T03:45:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5ca0885b2aed4d27fe545d8b9d8d0703bd19dd5ab2b637e50f3d20b158092d1a","name":"Luis de Arquer","registered_at":"2026-06-21T02:30:32Z","symbol":"NIM1792351","token_address":"0x4f6547dae6562713ff8207d60402ef8e6c2d499d","type":"artist","uuid":"d5cf8252-357c-4663-8c24-613b54d41e97"}
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 0x5ca0885b2aed4d27fe545d8b9d8d0703bd19dd5ab2b637e50f3d20b158092d1a. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d5cf8252-357c-4663-8c24-613b54d41e97.json and https://artists.proofprofile.net/proofs/artist/d5cf8252-357c-4663-8c24-613b54d41e97.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T03:45:44Z
  text: {"copyright_id":"0x5ca0885b2aed4d27fe545d8b9d8d0703bd19dd5ab2b637e50f3d20b158092d1a","name":"Luis de Arquer","registered_at":"2026-06-21T02:30:32Z","symbol":"NIM1792351","token_address":"0x4f6547dae6562713ff8207d60402ef8e6c2d499d","type":"artist","uuid":"d5cf8252-357c-4663-8c24-613b54d41e97"}
album: Sinfonía de ilegales
  type: MusicAlbum
  date published: 2011-10-10
  track: Aria de las variaciones Goldberg
    type: MusicRecording
    duration: PT2M42S
    duration ms: 162693
    explicit: false
    by artist: Luis de Arquer
    in album: Sinfonía de ilegales
      type: MusicAlbum
      date published: 2011-10-10
    isrc code: USA371460218
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T16:54:53+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x48e55a22b66b030576f68ecb4cd18766e9721782e5c6c4ba77273eb8bcccbd98
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958587
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958587
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371460218
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T17:06:26Z
    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 0x48e55a22b66b030576f68ecb4cd18766e9721782e5c6c4ba77273eb8bcccbd98. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/USA371460218.
      date published: 2026-07-18T17:06:26Z
    audio: Aria de las variaciones Goldberg
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 79.062
      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: 0.376
      additional property: Energy
        type: PropertyValue
        value: 0.053
      additional property: Speechiness
        type: PropertyValue
        value: 0.047
      additional property: Acousticness
        type: PropertyValue
        value: 0.992
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.919
      additional property: Liveness
        type: PropertyValue
        value: 0.129
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.399
      additional property: Loudness (dB)
        type: PropertyValue
        value: -23.486
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Alma
  type: MusicAlbum
  date published: 2022-04-07
album: Mother's Song
  type: MusicAlbum
  date published: 2022-05-02
album: Not Just Piano
  type: MusicAlbum
  date published: 2022-08-02
album: Música para un Viaje
  type: MusicAlbum
  date published: 2022-12-13
album: Prelude in d minor
  type: MusicAlbum
  date published: 2023-05-29
album: Suite AM
  type: MusicAlbum
  date published: 2024-08-22
album: Summer Moments
  type: MusicAlbum
  date published: 2024-09-22
album: Prelude Mib
  type: MusicAlbum
  date published: 2024-09-23
album: IMPULSE
  type: MusicAlbum
  date published: 2024-11-04
album: Portrait
  type: MusicAlbum
  date published: 2024-11-04