Hina Tachibana
type: MusicGroup
description: is a Japanese voice actress and singer. She is known for her roles as Nagi Hisakawa in The Idolmaster Cinderella Girls, Maina Ichii in If My Favorite Pop Idol Made It to the Budokan, I Would Die, Rie
popularity: 12
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9b48f51b63c5f090b15981fe4877af71944a512dab284a4b3ee8ce778b9f7e0a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953701
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953701
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/74b47c3b-63db-4d8a-87e3-bdde0981ec28.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/74b47c3b-63db-4d8a-87e3-bdde0981ec28.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/74b47c3b-63db-4d8a-87e3-bdde0981ec28
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:16:40Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9b48f51b63c5f090b15981fe4877af71944a512dab284a4b3ee8ce778b9f7e0a","name":"Hina Tachibana","registered_at":"2026-06-14T16:47:24Z","symbol":"NIM0514818","token_address":"0xa6905f2651185b541c2058ca9dffd86d10fb8d75","type":"artist","uuid":"74b47c3b-63db-4d8a-87e3-bdde0981ec28"}
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 0x9b48f51b63c5f090b15981fe4877af71944a512dab284a4b3ee8ce778b9f7e0a. Chain 2 (Bitcoin): anchored in block 953701 (2026-06-14T22:16:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/74b47c3b-63db-4d8a-87e3-bdde0981ec28.json and https://artists.proofprofile.net/proofs/artist/74b47c3b-63db-4d8a-87e3-bdde0981ec28.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T22:16:40Z
  text: {"copyright_id":"0x9b48f51b63c5f090b15981fe4877af71944a512dab284a4b3ee8ce778b9f7e0a","name":"Hina Tachibana","registered_at":"2026-06-14T16:47:24Z","symbol":"NIM0514818","token_address":"0xa6905f2651185b541c2058ca9dffd86d10fb8d75","type":"artist","uuid":"74b47c3b-63db-4d8a-87e3-bdde0981ec28"}