芹沢あさひ (CV.田中有紀)
type: MusicGroup
popularity: 18
followers: 531
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2737d89de8a6c5312ce1f51d80b5880f3484e4392e960d550575f1092a0a460c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953791
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953791
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/df28c20e-58e7-45e4-85b6-82df3a3eebca.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/df28c20e-58e7-45e4-85b6-82df3a3eebca.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/df28c20e-58e7-45e4-85b6-82df3a3eebca
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T13:40:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2737d89de8a6c5312ce1f51d80b5880f3484e4392e960d550575f1092a0a460c","name":"芹沢あさひ (CV.田中有紀)","registered_at":"2026-06-15T03:57:23Z","symbol":"NIM0674690","token_address":"0x4c313a923524b9dcd4e69a8d26e1eda486114eda","type":"artist","uuid":"df28c20e-58e7-45e4-85b6-82df3a3eebca"}
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 0x2737d89de8a6c5312ce1f51d80b5880f3484e4392e960d550575f1092a0a460c. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/df28c20e-58e7-45e4-85b6-82df3a3eebca.json and https://artists.proofprofile.net/proofs/artist/df28c20e-58e7-45e4-85b6-82df3a3eebca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T13:40:30Z
  text: {"copyright_id":"0x2737d89de8a6c5312ce1f51d80b5880f3484e4392e960d550575f1092a0a460c","name":"芹沢あさひ (CV.田中有紀)","registered_at":"2026-06-15T03:57:23Z","symbol":"NIM0674690","token_address":"0x4c313a923524b9dcd4e69a8d26e1eda486114eda","type":"artist","uuid":"df28c20e-58e7-45e4-85b6-82df3a3eebca"}
album: THE IDOLM@STER SHINY COLORS シャイニーPRオファー Vol.3
  type: MusicAlbum
  date published: 2024-04-17