Sleepy Penguin
type: MusicGroup
popularity: 50
followers: 12230
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa087c43495c8709a4b5115932ce65ce444022ba1e31fb0f9bf3d629e492724a3
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/19e63793-6319-468b-ba77-f6b43c1f05c3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/19e63793-6319-468b-ba77-f6b43c1f05c3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/19e63793-6319-468b-ba77-f6b43c1f05c3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa087c43495c8709a4b5115932ce65ce444022ba1e31fb0f9bf3d629e492724a3","name":"Sleepy Penguin","registered_at":"2026-06-11T13:15:09Z","symbol":"NIM0035058","token_address":"0x7be259664ccb7756471ebb701336944324cf7119","type":"artist","uuid":"19e63793-6319-468b-ba77-f6b43c1f05c3"}
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 0xa087c43495c8709a4b5115932ce65ce444022ba1e31fb0f9bf3d629e492724a3. 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/19e63793-6319-468b-ba77-f6b43c1f05c3.json and https://artists.proofprofile.net/proofs/artist/19e63793-6319-468b-ba77-f6b43c1f05c3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xa087c43495c8709a4b5115932ce65ce444022ba1e31fb0f9bf3d629e492724a3","name":"Sleepy Penguin","registered_at":"2026-06-11T13:15:09Z","symbol":"NIM0035058","token_address":"0x7be259664ccb7756471ebb701336944324cf7119","type":"artist","uuid":"19e63793-6319-468b-ba77-f6b43c1f05c3"}
album: Dreamy Piano Melodies
  type: MusicAlbum
  date published: 2021
album: Gentle Piano Magical Tunes
  type: MusicAlbum
  date published: 2021
album: Relaxing White Noise Piano Melodies
  type: MusicAlbum
  date published: 2022-01-19
album: White Noise Piano Calm Melodies
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  date published: 2022-01-27
album: Brown Noise Bedtime Melodies
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  date published: 2022-02-14
album: Soothing White Noise Melodies
  type: MusicAlbum
  date published: 2022-02-15
album: White Noise Relaxing Melodies
  type: MusicAlbum
  date published: 2022-02-15
album: White Noise Piano Dreamy Melodies
  type: MusicAlbum
  date published: 2022-02-16
album: Gentle Relaxing White Noise
  type: MusicAlbum
  date published: 2022-03-04
album: White Noise Lullaby Piano Mix
  type: MusicAlbum
  date published: 2022-03-10
album: Ease Your Mind Mix
  type: MusicAlbum
  date published: 2022-04-06
album: Bedtime White Noise Piano Melodies
  type: MusicAlbum
  date published: 2022-05-26
album: White Noise Calming Piano Melodies
  type: MusicAlbum
  date published: 2022-05-26
album: Soothing Piano and White Noise
  type: MusicAlbum
  date published: 2022-05-26
album: Serene Piano Reflections
  type: MusicAlbum
  date published: 2023-05-10
album: Twilight Serenade
  type: MusicAlbum
  date published: 2023-05-12
album: Tranquil Piano Sonata
  type: MusicAlbum
  date published: 2023-05-12
album: Calm Baby Sleep Melodies
  type: MusicAlbum
  date published: 2023-10-27