a girl and a cat
type: MusicGroup
genre: lo-fi
popularity: 16
followers: 28
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953704
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/78a9e27d-ed49-44c3-831a-2b3fb2d8f2f8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/78a9e27d-ed49-44c3-831a-2b3fb2d8f2f8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/78a9e27d-ed49-44c3-831a-2b3fb2d8f2f8
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  type: PropertyValue
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  type: PropertyValue
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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 0x0ee61ec473126bfe6ec543e058d922e70452cc932846ef5ce3d298d9f04699d9. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/78a9e27d-ed49-44c3-831a-2b3fb2d8f2f8.json and https://artists.proofprofile.net/proofs/artist/78a9e27d-ed49-44c3-831a-2b3fb2d8f2f8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T22:58:38Z
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album: Astro Vibes Chill Hip Hop Melodies
  type: MusicAlbum
  date published: 2024-10-05
album: Cosmic Cat Lo Fi Hip Hop Calm Music
  type: MusicAlbum
  date published: 2024-10-06
  track: Lofi Dreamland Lullabies
    type: MusicRecording
    duration: PT2M18S
    duration ms: 138501
    explicit: false
    by artist: a girl and a cat
    in album: Cosmic Cat Lo Fi Hip Hop Calm Music
      type: MusicAlbum
      date published: 2024-10-06
    genre: lo-fi
    isrc code: QZP7F2450477
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
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      type: PropertyValue
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      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x88ba4a242cdc3f783cd3033a5aca74feca6518bfcf698b7c1a9feeea5c44f3ee
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      type: PropertyValue
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZP7F2450477
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0x88ba4a242cdc3f783cd3033a5aca74feca6518bfcf698b7c1a9feeea5c44f3ee. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZP7F2450477.
      date published: 2026-07-05T19:27:56Z
    audio: Lofi Dreamland Lullabies
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 81.865
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.363
      additional property: Energy
        type: PropertyValue
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      additional property: Speechiness
        type: PropertyValue
        value: 0.071
      additional property: Acousticness
        type: PropertyValue
        value: 0.972
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.958
      additional property: Liveness
        type: PropertyValue
        value: 0.106
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.32
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.793
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Chill Astro Cat Lo Fi Hip Hop Music
  type: MusicAlbum
  date published: 2024-10-08
album: Galactic Chill Lo Fi Hip Hop
  type: MusicAlbum
  date published: 2024-10-21
album: Cosmic Cats Chill Lo Fi Vibes for Study and Relaxation
  type: MusicAlbum
  date published: 2024-10-23
album: Cats in Space Lo Fi Chillout for Working and Streaming
  type: MusicAlbum
  date published: 2024-10-28
  track: Ambient Waves for Lofi Streams
    type: MusicRecording
    duration: PT1M36S
    duration ms: 96235
    explicit: false
    by artist: a girl and a cat
    in album: Cats in Space Lo Fi Chillout for Working and Streaming
      type: MusicAlbum
      date published: 2024-10-28
    genre: lo-fi
    isrc code: QZP7F2468115
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
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      type: PropertyValue
      value: 2026-07-03T10:33:43+00:00
    additional property: CopyrightChainExplorerURL
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    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956551
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZP7F2468115
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T21:18:05Z
    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 0x5f4e9d9505f419df742aeab4024d94ef945c6da12d8332c8a2c16e178e90e047. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZP7F2468115.
      date published: 2026-07-03T21:18:05Z
    audio: Ambient Waves for Lofi Streams
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 182.426
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.665
      additional property: Energy
        type: PropertyValue
        value: 0.284
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Galactic Cats Lo Fi Space Vibes for Chill and Focus
album: Astronaut Cats Lo Fi Hip Hop for Relaxing and Studying
album: Cats of the Cosmos Lo Fi Chill Beats for Study
album: Space Kitties Lo Fi Beats for Focus and Calm
album: Chill Cat Galaxy Lo Fi Hip Hop for Study and Work
album: Astro Lofi Hip Hop Autumn Beats 2024

Speechiness
type: PropertyValue
value: 0.181

Acousticness
type: PropertyValue
value: 0.906

Instrumentalness
type: PropertyValue
value: 0.953

Liveness
type: PropertyValue
value: 0.102

Valence (Positivity)
type: PropertyValue
value: 0.584

Loudness (dB)
type: PropertyValue
value: -13.603

Key Name
type: PropertyValue
value: Bb

Mode Name
type: PropertyValue
value: Major

Galactic Cats Lo Fi Space Vibes for Chill and Focus
type: MusicAlbum
date published: 2024-11-01

Astronaut Cats Lo Fi Hip Hop for Relaxing and Studying
type: MusicAlbum
date published: 2024-11-05

Cats of the Cosmos Lo Fi Chill Beats for Study
type: MusicAlbum
date published: 2024-11-10

Space Kitties Lo Fi Beats for Focus and Calm
type: MusicAlbum
date published: 2024-11-14

Chill Cat Galaxy Lo Fi Hip Hop for Study and Work
type: MusicAlbum
date published: 2024-11-19

Astro Lofi Hip Hop Autumn Beats 2024
type: MusicAlbum
date published: 2024-11-23