Lev Castillo
type: MusicGroup
genre: lullaby
popularity: 31
followers: 54
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x53969bbf791b458cad18b8d3fddb7125381dd74c3b5cff319f79706a297cb282
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/fd4fba6c-d815-48bb-aaa2-6f7cfd4cf7f3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fd4fba6c-d815-48bb-aaa2-6f7cfd4cf7f3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fd4fba6c-d815-48bb-aaa2-6f7cfd4cf7f3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x53969bbf791b458cad18b8d3fddb7125381dd74c3b5cff319f79706a297cb282","name":"Lev Castillo","registered_at":"2026-06-12T14:32:03Z","symbol":"NIM0326383","token_address":"0xa01eaf01127363485bab4f6aa06d58d2c6ae6ace","type":"artist","uuid":"fd4fba6c-d815-48bb-aaa2-6f7cfd4cf7f3"}
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 0x53969bbf791b458cad18b8d3fddb7125381dd74c3b5cff319f79706a297cb282. 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/fd4fba6c-d815-48bb-aaa2-6f7cfd4cf7f3.json and https://artists.proofprofile.net/proofs/artist/fd4fba6c-d815-48bb-aaa2-6f7cfd4cf7f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x53969bbf791b458cad18b8d3fddb7125381dd74c3b5cff319f79706a297cb282","name":"Lev Castillo","registered_at":"2026-06-12T14:32:03Z","symbol":"NIM0326383","token_address":"0xa01eaf01127363485bab4f6aa06d58d2c6ae6ace","type":"artist","uuid":"fd4fba6c-d815-48bb-aaa2-6f7cfd4cf7f3"}
album: It's Been A Long Day
  type: MusicAlbum
  date published: 2021-02-23
album: Room For One More
  type: MusicAlbum
  date published: 2022-02-04
album: Warm and Happy
  type: MusicAlbum
  date published: 2023-04-14
  track: Warm and Happy
    type: MusicRecording
    duration: PT2M7S
    duration ms: 127531
    explicit: false
    by artist: Lev Castillo
    in album: Warm and Happy
      type: MusicAlbum
      date published: 2023-04-14
    genre: lullaby
    isrc code: SE5W32306347
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T03:10:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5dcc57e7d098912f7d436966d918b94759d1941f738c35020d02fecaaf6e5351
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958357
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958357
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5W32306347
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T03:33:42Z
    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 0x5dcc57e7d098912f7d436966d918b94759d1941f738c35020d02fecaaf6e5351. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/SE5W32306347.
      date published: 2026-07-17T03:33:42Z
    audio: Warm and Happy
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 62.927
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.767
      additional property: Energy
        type: PropertyValue
        value: 0.031
      additional property: Speechiness
        type: PropertyValue
        value: 0.116
      additional property: Acousticness
        type: PropertyValue
        value: 0.996
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.968
      additional property: Liveness
        type: PropertyValue
        value: 0.116
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.724
      additional property: Loudness (dB)
        type: PropertyValue
        value: -21.89
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major