Carlos Leon
type: MusicGroup
popularity: 3
followers: 50
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4daf1ca4321bf8702acdc9cd65b219c5b7444c10a0f77caaec9fc128bb7a5077
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953903
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953903
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/14d5a9e2-df88-47a8-bced-e2294f49fdd3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/14d5a9e2-df88-47a8-bced-e2294f49fdd3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/14d5a9e2-df88-47a8-bced-e2294f49fdd3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:05:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4daf1ca4321bf8702acdc9cd65b219c5b7444c10a0f77caaec9fc128bb7a5077","name":"Carlos Leon","registered_at":"2026-06-15T20:49:34Z","symbol":"NIM0827932","token_address":"0xf8dcbd0b518b72595fa2e48bd1f92527c8bd6f1b","type":"artist","uuid":"14d5a9e2-df88-47a8-bced-e2294f49fdd3"}
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 0x4daf1ca4321bf8702acdc9cd65b219c5b7444c10a0f77caaec9fc128bb7a5077. Chain 2 (Bitcoin): anchored in block 953903 (2026-06-16T07:05:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/14d5a9e2-df88-47a8-bced-e2294f49fdd3.json and https://artists.proofprofile.net/proofs/artist/14d5a9e2-df88-47a8-bced-e2294f49fdd3.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T07:05:05Z
  text: {"copyright_id":"0x4daf1ca4321bf8702acdc9cd65b219c5b7444c10a0f77caaec9fc128bb7a5077","name":"Carlos Leon","registered_at":"2026-06-15T20:49:34Z","symbol":"NIM0827932","token_address":"0xf8dcbd0b518b72595fa2e48bd1f92527c8bd6f1b","type":"artist","uuid":"14d5a9e2-df88-47a8-bced-e2294f49fdd3"}
album: Cabaret
  type: MusicAlbum
  date published: 2020-11-15
album: Sueño y Ensueño Interpretativo
  type: MusicAlbum
  date published: 2022-02-18
album: Recuerdos de Madrid
  type: MusicAlbum
  date published: 2022-02-18
album: Eterno Amor
  type: MusicAlbum
  date published: 2022-02-18
album: Primavera en Barcelona
  type: MusicAlbum
  date published: 2022-02-24
album: Primavera en Barcelona
  type: MusicAlbum
  date published: 2022-02-24
  track: Concierto de Aranjuez Segundo Movimiento
    type: MusicRecording
    duration: PT5M56S
    duration ms: 356153
    explicit: false
    by artist: Carlos Leon
    in album: Primavera en Barcelona
      type: MusicAlbum
      date published: 2022-02-24
    isrc code: US3DF2223137
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T02:37:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb35fc3137d2da3dd768c5a7f93201577617707c91e17d91c3321d9d0da8d3298
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958955
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958955
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2223137
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T03:03:40Z
    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 0xb35fc3137d2da3dd768c5a7f93201577617707c91e17d91c3321d9d0da8d3298. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2223137 — a six-check JSON result.
      date published: 2026-07-21T03:03:40Z
    audio: Concierto de Aranjuez Segundo Movimiento
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 175.046
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.272
      additional property: Energy
        type: PropertyValue
        value: 0.105
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.807
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.76
      additional property: Liveness
        type: PropertyValue
        value: 0.093
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.07
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.688
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor