ulldull
type: MusicGroup
genre: shoegaze
genre: vocaloid
popularity: 2
followers: 85
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x430e81946a76b44de525db16c42f51d45bd9812f3689592af4f8549a9e11fe41
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954638
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954638
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d5073223-e666-4d25-8047-0118d2bff7f6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d5073223-e666-4d25-8047-0118d2bff7f6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d5073223-e666-4d25-8047-0118d2bff7f6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T03:45:44Z
additional property: OTSCanonicalRecord
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 0x430e81946a76b44de525db16c42f51d45bd9812f3689592af4f8549a9e11fe41. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d5073223-e666-4d25-8047-0118d2bff7f6.json and https://artists.proofprofile.net/proofs/artist/d5073223-e666-4d25-8047-0118d2bff7f6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T03:45:44Z
album: sleep on the world (feat. Kaai Yuki & HATSUNE MIKU)
  type: MusicAlbum
  date published: 2012-09-01
album: hakuchumu
  type: MusicAlbum
  date published: 2013-07-13
album: hakuchumu
  type: MusicAlbum
  date published: 2013-07-13
album: because your money is lmited
  type: MusicAlbum
  date published: 2021-09-01
album: because your money is lmited
  type: MusicAlbum
  date published: 2021-09-01
album: 壊してよ (feat. 初音ミク)
  type: MusicAlbum
  date published: 2024-05-01
album: break it (feat. HATSUNE MIKU)
  type: MusicAlbum
  date published: 2024-05-01
album: because your money is limited (2025 Remaster)
  type: MusicAlbum
  date published: 2025-08-22
album: because your money is limited (2025 Remaster)
  type: MusicAlbum
  date published: 2025-08-22