Lofi Cat
type: MusicGroup
genre: argentine rock
popularity: 10
followers: 120
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x57bf7204c3a7edcd2a26be5ee8a8d46f7aac3b233876dded53861613f8d0cf85
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/85bd15a4-0765-4b76-ba8e-9fb5683e80f5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/85bd15a4-0765-4b76-ba8e-9fb5683e80f5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/85bd15a4-0765-4b76-ba8e-9fb5683e80f5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x57bf7204c3a7edcd2a26be5ee8a8d46f7aac3b233876dded53861613f8d0cf85","name":"Lofi Cat","registered_at":"2026-06-17T12:16:45Z","symbol":"NIM1392788","token_address":"0x404c48d37e1722cdb3878183464ebdf39ae5e5e0","type":"artist","uuid":"85bd15a4-0765-4b76-ba8e-9fb5683e80f5"}
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 0x57bf7204c3a7edcd2a26be5ee8a8d46f7aac3b233876dded53861613f8d0cf85. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/85bd15a4-0765-4b76-ba8e-9fb5683e80f5.json and https://artists.proofprofile.net/proofs/artist/85bd15a4-0765-4b76-ba8e-9fb5683e80f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x57bf7204c3a7edcd2a26be5ee8a8d46f7aac3b233876dded53861613f8d0cf85","name":"Lofi Cat","registered_at":"2026-06-17T12:16:45Z","symbol":"NIM1392788","token_address":"0x404c48d37e1722cdb3878183464ebdf39ae5e5e0","type":"artist","uuid":"85bd15a4-0765-4b76-ba8e-9fb5683e80f5"}
album: Tokyo.
  type: MusicAlbum
  date published: 2024-02-02
album: Kyoto.
  type: MusicAlbum
  date published: 2024-02-09
  track: Loafs and Banana Toast
    type: MusicRecording
    duration: PT2M56S
    duration ms: 176103
    explicit: false
    by artist: Lofi Cat
    in album: Kyoto.
      type: MusicAlbum
      date published: 2024-02-09
    genre: argentine rock
    isrc code: QZFZ72424051
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T18:49:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x892414570de5366d8d9f91e5530932e97a5000fd19346a52ddd090223b1a934c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956738
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956738
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ72424051
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T04:47:21Z
    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 0x892414570de5366d8d9f91e5530932e97a5000fd19346a52ddd090223b1a934c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZFZ72424051.
      date published: 2026-07-05T04:47:21Z
    audio: Loafs and Banana Toast
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 77.007
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.662
      additional property: Energy
        type: PropertyValue
        value: 0.225
      additional property: Speechiness
        type: PropertyValue
        value: 0.047
      additional property: Acousticness
        type: PropertyValue
        value: 0.388
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.82
      additional property: Liveness
        type: PropertyValue
        value: 0.137
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.04
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.159
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Sapporo.
  type: MusicAlbum
  date published: 2024-02-16
album: Osaka.
  type: MusicAlbum
  date published: 2024-05-03
album: Kobe.
  type: MusicAlbum
  date published: 2024-05-10
album: Kawasaki.
  type: MusicAlbum
  date published: 2024-05-14
album: Yokohama.
  type: MusicAlbum
  date published: 2024-05-24
album: Fukuoka.
  type: MusicAlbum
  date published: 2024-06-07
album: Saitama.
  type: MusicAlbum
  date published: 2024-06-21
album: Kanazawa.
  type: MusicAlbum
  date published: 2024-07-05
album: Hakodate.
  type: MusicAlbum
  date published: 2024-07-19
album: Chiba.
  type: MusicAlbum
  date published: 2024-08-16
album: Kitakyushu.
  type: MusicAlbum
  date published: 2024-08-23