NIJISANJI
type: MusicGroup
description: is a virtual YouTuber agency owned by Anycolor Inc. (formerly Ichikara Inc.). The agency was founded in 2018 with the purpose of promoting the use of Live2D models and live streaming as opposed to th
popularity: 20
followers: 16978
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf94b1ae94f4b5ed325905d18f8a7d032ba9327c192376cfebc27e6a5c338c375
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953641
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953641
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3a122f70-4173-4302-88ce-ea4c9a4371f6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3a122f70-4173-4302-88ce-ea4c9a4371f6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3a122f70-4173-4302-88ce-ea4c9a4371f6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T13:54:28Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94b1ae94f4b5ed325905d18f8a7d032ba9327c192376cfebc27e6a5c338c375. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a122f70-4173-4302-88ce-ea4c9a4371f6.json and https://artists.proofprofile.net/proofs/artist/3a122f70-4173-4302-88ce-ea4c9a4371f6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
album: Virtual to LIVE
  type: MusicAlbum
  date published: 2019-08-09
album: Hurrah!!
  type: MusicAlbum
  date published: 2022-08-07
album: Buddy & Wilderness
  type: MusicAlbum
  date published: 2023-05-24
album: Niginigi Nijitown
  type: MusicAlbum
  date published: 2025-09-13