Sleepy Cat
type: MusicGroup
genre: lo-fi
genre: lo-fi beats
popularity: 49
followers: 6421
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3849ac0b7c9922c3d72f91f23ea60ef3349b73bcab4aa40c4326a3386b39a8ad
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/e682ff81-cf7b-48b3-813a-087dcc474e06.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e682ff81-cf7b-48b3-813a-087dcc474e06.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e682ff81-cf7b-48b3-813a-087dcc474e06
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3849ac0b7c9922c3d72f91f23ea60ef3349b73bcab4aa40c4326a3386b39a8ad","name":"Sleepy Cat","registered_at":"2026-06-12T12:24:31Z","symbol":"NIM0296986","token_address":"0x9cb227a5b950891423fdafb60f909bef39867562","type":"artist","uuid":"e682ff81-cf7b-48b3-813a-087dcc474e06"}
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 0x3849ac0b7c9922c3d72f91f23ea60ef3349b73bcab4aa40c4326a3386b39a8ad. 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/e682ff81-cf7b-48b3-813a-087dcc474e06.json and https://artists.proofprofile.net/proofs/artist/e682ff81-cf7b-48b3-813a-087dcc474e06.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x3849ac0b7c9922c3d72f91f23ea60ef3349b73bcab4aa40c4326a3386b39a8ad","name":"Sleepy Cat","registered_at":"2026-06-12T12:24:31Z","symbol":"NIM0296986","token_address":"0x9cb227a5b950891423fdafb60f909bef39867562","type":"artist","uuid":"e682ff81-cf7b-48b3-813a-087dcc474e06"}
album: Nap Time
  type: MusicAlbum
  date published: 2023-03-31
album: Cozy Dreams
  type: MusicAlbum
  date published: 2023-06-23
album: Vivid Dreams
  type: MusicAlbum
  date published: 2023-09-29
album: Sleep Time Vol.1
  type: MusicAlbum
  date published: 2023-10-06
album: Sleep Time Vol.2
  type: MusicAlbum
  date published: 2023-10-13
album: Dreaming On The Sea
  type: MusicAlbum
  date published: 2023-11-17
album: A Quiet Night In The Forest
  type: MusicAlbum
  date published: 2023-11-29
album: Late Night Vibes
  type: MusicAlbum
  date published: 2025-02-11
album: 3:00 AM Study Session
  type: MusicAlbum
  date published: 2025-06-09
album: Cat Music - Sleeping Music For Cats and Pet Relaxation
  type: MusicAlbum
  date published: 2025-08-11
album: Late Nights In The City
  type: MusicAlbum
  date published: 2025-10-31
track: November
  type: MusicRecording
  duration: PT2M48S
  duration ms: 168000
  explicit: false
  by artist: Sleepy Cat
  by artist: Chilled Cat
  in album: Winter Vibes 2021
    type: MusicAlbum
    date published: 2022-01-28
  isrc code: QZNWW2127639
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-06T17:53:00+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xdae93290dd2b43f5ca4d43f7717bd71ddbc686d865baf7fb3bf610d6a8d5f316
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953515
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953515
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2127639
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T12:53:06Z
  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 0xdae93290dd2b43f5ca4d43f7717bd71ddbc686d865baf7fb3bf610d6a8d5f316. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZNWW2127639.
    date published: 2026-06-13T12:53:06Z
  audio: November
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 104.398
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.689
    additional property: Energy
      type: PropertyValue
      value: 0.216
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.166
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.926
    additional property: Liveness
      type: PropertyValue
      value: 0.093
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.35
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.798
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major