Sleep Cat
type: MusicGroup
popularity: 4
followers: 97
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6ef784f92e38fbbaaefd5791c8c33845a50f040f3071e149436636c47fd8f38d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954134
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954134
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7ee5c08e-b484-4af0-a890-81a18e61b3d9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7ee5c08e-b484-4af0-a890-81a18e61b3d9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7ee5c08e-b484-4af0-a890-81a18e61b3d9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:41:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6ef784f92e38fbbaaefd5791c8c33845a50f040f3071e149436636c47fd8f38d","name":"Sleep Cat","registered_at":"2026-06-17T09:48:21Z","symbol":"NIM1357402","token_address":"0x559736bddf572e3a81aa7bc8c9c10dae5218f40e","type":"artist","uuid":"7ee5c08e-b484-4af0-a890-81a18e61b3d9"}
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 0x6ef784f92e38fbbaaefd5791c8c33845a50f040f3071e149436636c47fd8f38d. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ee5c08e-b484-4af0-a890-81a18e61b3d9.json and https://artists.proofprofile.net/proofs/artist/7ee5c08e-b484-4af0-a890-81a18e61b3d9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:41:05Z
  text: {"copyright_id":"0x6ef784f92e38fbbaaefd5791c8c33845a50f040f3071e149436636c47fd8f38d","name":"Sleep Cat","registered_at":"2026-06-17T09:48:21Z","symbol":"NIM1357402","token_address":"0x559736bddf572e3a81aa7bc8c9c10dae5218f40e","type":"artist","uuid":"7ee5c08e-b484-4af0-a890-81a18e61b3d9"}
album: Relaxing Music For Lovely Cats
  type: MusicAlbum
  date published: 2020-10-28
album: Piano Music For Devoted Cats
  type: MusicAlbum
  date published: 2020-11-02
album: 再见
  type: MusicAlbum
  date published: 2023-08-01
album: Cat's Stream Serenity: Soothing Water Sounds for Felines
  type: MusicAlbum
  date published: 2024-04-01
album: Rain's Purring Melodies: Music for Cats
  type: MusicAlbum
  date published: 2024-04-12
album: Purring by the Ocean: Cats Calming Music
  type: MusicAlbum
  date published: 2024-04-26
album: Binaural Birds for Cats: Soothing Sounds for Relaxation
  type: MusicAlbum
  date published: 2024-05-02
album: Cats and Rain Melodies: Calming Music for Felines
  type: MusicAlbum
  date published: 2024-05-10
album: Cats' Binaural Harmony: Nature Rain and Birds Sounds
  type: MusicAlbum
  date published: 2024-05-20
album: Music for Cat Comfort: Purrfect Harmonies
  type: MusicAlbum
  date published: 2024-05-28
album: Feline Harmony: Music for Cats Relaxation
  type: MusicAlbum
  date published: 2024-06-13
album: Whisker Harmonics: Serene Music for Cats
  type: MusicAlbum
  date published: 2024-07-08
album: Music for Cats: Relaxing Vibes
  type: MusicAlbum
  date published: 2024-07-17