Leon FM
type: MusicGroup
genre: lounge
popularity: 21
followers: 162
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8b38293333acf3ccf11d1d28f918d771e1d582ae7d079af1207ed6afa5f2bb89
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/13814fd3-9f04-42d9-a1cc-57bf1c5a12c7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/13814fd3-9f04-42d9-a1cc-57bf1c5a12c7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/13814fd3-9f04-42d9-a1cc-57bf1c5a12c7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8b38293333acf3ccf11d1d28f918d771e1d582ae7d079af1207ed6afa5f2bb89","name":"Leon FM","registered_at":"2026-06-11T12:19:02Z","symbol":"NIM0026144","token_address":"0xc0873603a40ae3ed7aa5749331bc59fb66a982e3","type":"artist","uuid":"13814fd3-9f04-42d9-a1cc-57bf1c5a12c7"}
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 0x8b38293333acf3ccf11d1d28f918d771e1d582ae7d079af1207ed6afa5f2bb89. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/13814fd3-9f04-42d9-a1cc-57bf1c5a12c7.json and https://artists.proofprofile.net/proofs/artist/13814fd3-9f04-42d9-a1cc-57bf1c5a12c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x8b38293333acf3ccf11d1d28f918d771e1d582ae7d079af1207ed6afa5f2bb89","name":"Leon FM","registered_at":"2026-06-11T12:19:02Z","symbol":"NIM0026144","token_address":"0xc0873603a40ae3ed7aa5749331bc59fb66a982e3","type":"artist","uuid":"13814fd3-9f04-42d9-a1cc-57bf1c5a12c7"}
album: Broken Cassette
  type: MusicAlbum
  date published: 2023-09-08
  track: Broken Cassette
    type: MusicRecording
    duration: PT2M26S
    duration ms: 146776
    explicit: false
    by artist: Leon FM
    in album: Broken Cassette
      type: MusicAlbum
      date published: 2023-09-08
    genre: lounge
    isrc code: SE7DX2300025
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T22:27:24+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x68c04d27bb3fa5d6b9016feddb9382729185c8a73d2e31a30d4068348d876fba
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958942
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958942
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE7DX2300025
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T00:24:07Z
    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 0x68c04d27bb3fa5d6b9016feddb9382729185c8a73d2e31a30d4068348d876fba. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/SE7DX2300025.
      date published: 2026-07-21T00:24:07Z
    audio: Broken Cassette
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.978
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.768
      additional property: Energy
        type: PropertyValue
        value: 0.589
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.249
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.845
      additional property: Liveness
        type: PropertyValue
        value: 0.111
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.144
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.976
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Peaceful Motion
  type: MusicAlbum
  date published: 2023-09-22
album: Lonely nights
  type: MusicAlbum
  date published: 2023-10-06
album: Sunset Bliss
  type: MusicAlbum
  date published: 2023-10-20
album: Sunday Things
  type: MusicAlbum
  date published: 2023-11-24
album: Sunbeds
  type: MusicAlbum
  date published: 2023-12-08