Leon Guallart
type: MusicGroup
popularity: 12
followers: 1203
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7c7c7ea2b4816587b495d998229af34b4163fb9fc043d3949e5a46ee56864ced
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953741
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953741
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/990c1cc5-ceb0-4500-91c1-cd10884388a9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/990c1cc5-ceb0-4500-91c1-cd10884388a9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/990c1cc5-ceb0-4500-91c1-cd10884388a9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:44:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7c7c7ea2b4816587b495d998229af34b4163fb9fc043d3949e5a46ee56864ced","name":"Leon Guallart","registered_at":"2026-06-14T20:35:33Z","symbol":"NIM0569184","token_address":"0xa27654e64799ca084fda1d8b4147779eb3baa8e5","type":"artist","uuid":"990c1cc5-ceb0-4500-91c1-cd10884388a9"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7c7ea2b4816587b495d998229af34b4163fb9fc043d3949e5a46ee56864ced. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/990c1cc5-ceb0-4500-91c1-cd10884388a9.json and https://artists.proofprofile.net/proofs/artist/990c1cc5-ceb0-4500-91c1-cd10884388a9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:44:49Z
  text: {"copyright_id":"0x7c7c7ea2b4816587b495d998229af34b4163fb9fc043d3949e5a46ee56864ced","name":"Leon Guallart","registered_at":"2026-06-14T20:35:33Z","symbol":"NIM0569184","token_address":"0xa27654e64799ca084fda1d8b4147779eb3baa8e5","type":"artist","uuid":"990c1cc5-ceb0-4500-91c1-cd10884388a9"}
album: PRAYER
  type: MusicAlbum
  date published: 2020-05-02
album: JEUNE MAGIC
  type: MusicAlbum
  date published: 2020-05-07
album: TIME CHANGE FAITH
  type: MusicAlbum
  date published: 2020-06-12
album: The Moon
  type: MusicAlbum
  date published: 2021-01-15
album: Lost
  type: MusicAlbum
  date published: 2021-04-02
album: Ballet from the Sky
  type: MusicAlbum
  date published: 2021-05-28
album: UNO
  type: MusicAlbum
  date published: 2021-09-24
album: espacio_HECHO
  type: MusicAlbum
  date published: 2022-04-14
album: fire
  type: MusicAlbum
  date published: 2023-01-19
  track: fire
    type: MusicRecording
    duration: PT2M18S
    duration ms: 138500
    explicit: false
    by artist: Leon Guallart
    in album: fire
      type: MusicAlbum
      date published: 2023-01-19
    isrc code: QZPLR2275025
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T13:45:20+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2f3905e0a03eb3896b4a545c1f869d8d76844b68975979bf5521a1b4816a2c71
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958563
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958563
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLR2275025
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T14:29:03Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3905e0a03eb3896b4a545c1f869d8d76844b68975979bf5521a1b4816a2c71. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZPLR2275025.
      date published: 2026-07-18T14:29:03Z
    audio: fire
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 81.311
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 1
      additional property: Danceability
        type: PropertyValue
        value: 0.215
      additional property: Energy
        type: PropertyValue
        value: 0.178
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.911
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.148
      additional property: Liveness
        type: PropertyValue
        value: 0.171
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.046
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.818
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: fire, a meditation
  type: MusicAlbum
  date published: 2023-02-16
album: blue moon
  type: MusicAlbum
  date published: 2023-10-11
album: coming home
  type: MusicAlbum
  date published: 2023-11-22
album: Int. Night (Live)
  type: MusicAlbum
  date published: 2024-10-10
album: Mantra, Solo (Live)
  type: MusicAlbum
  date published: 2024-10-31
album: You Give Me Comfort
  type: MusicAlbum
  date published: 2024-12-06
album: The Night of the Monster (Live)
  type: MusicAlbum
  date published: 2024-12-13
album: About Last Night
  type: MusicAlbum
  date published: 2025-01-24
album: The Tree
  type: MusicAlbum
  date published: 2025-03-07
album: Mantra, A Meditation
  type: MusicAlbum
  date published: 2025-05-23
album: Mantra (Original Motion Picture Soundtrack)
  type: MusicAlbum
  date published: 2025-06-27