Penguins Project
type: MusicGroup
genre: vocaloid
popularity: 4
followers: 2798
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x950366928cf0571211a06f8540089579a82fb4b685859c43670fcf273b982123
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/824cc202-36b2-49d8-b96a-07908c7e8194.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/824cc202-36b2-49d8-b96a-07908c7e8194.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/824cc202-36b2-49d8-b96a-07908c7e8194
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x950366928cf0571211a06f8540089579a82fb4b685859c43670fcf273b982123","name":"Penguins Project","registered_at":"2026-06-17T11:00:15Z","symbol":"NIM1374544","token_address":"0x6437ed3d1d70f1554c470598f9837157b8d335f0","type":"artist","uuid":"824cc202-36b2-49d8-b96a-07908c7e8194"}
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 0x950366928cf0571211a06f8540089579a82fb4b685859c43670fcf273b982123. 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/824cc202-36b2-49d8-b96a-07908c7e8194.json and https://artists.proofprofile.net/proofs/artist/824cc202-36b2-49d8-b96a-07908c7e8194.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x950366928cf0571211a06f8540089579a82fb4b685859c43670fcf273b982123","name":"Penguins Project","registered_at":"2026-06-17T11:00:15Z","symbol":"NIM1374544","token_address":"0x6437ed3d1d70f1554c470598f9837157b8d335f0","type":"artist","uuid":"824cc202-36b2-49d8-b96a-07908c7e8194"}
album: チョコレート・トレイン/Chocolate Train
  type: MusicAlbum
  date published: 2008-11-18
album: 飛べない鳥の想像力 (Penguin's Dream)
  type: MusicAlbum
  date published: 2009-03-11
album: Galapagos
  type: MusicAlbum
  date published: 2012-01-01
album: Classic
  type: MusicAlbum
  date published: 2013-11-17
album: 4-26-8
  type: MusicAlbum
  date published: 2020-10-14