西野千菜美
type: MusicGroup
genre: japanese indie
genre: shibuya-kei
popularity: 17
followers: 43
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x84c2914dc34c4b22ae2340ca020cf80be8c2b52eac0f00210ba49a93c3c9c06a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953605
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953605
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/102b7a72-5980-48b5-b2ee-13621d8d791e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/102b7a72-5980-48b5-b2ee-13621d8d791e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/102b7a72-5980-48b5-b2ee-13621d8d791e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T07:39:50Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x84c2914dc34c4b22ae2340ca020cf80be8c2b52eac0f00210ba49a93c3c9c06a","name":"西野千菜美","registered_at":"2026-06-14T06:05:19Z","symbol":"NIM0361657","token_address":"0xf0f7b80a97d287ce2a0246a6d2eab7d1c61e840a","type":"artist","uuid":"102b7a72-5980-48b5-b2ee-13621d8d791e"}
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 0x84c2914dc34c4b22ae2340ca020cf80be8c2b52eac0f00210ba49a93c3c9c06a. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/102b7a72-5980-48b5-b2ee-13621d8d791e.json and https://artists.proofprofile.net/proofs/artist/102b7a72-5980-48b5-b2ee-13621d8d791e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T07:39:50Z
  text: {"copyright_id":"0x84c2914dc34c4b22ae2340ca020cf80be8c2b52eac0f00210ba49a93c3c9c06a","name":"西野千菜美","registered_at":"2026-06-14T06:05:19Z","symbol":"NIM0361657","token_address":"0xf0f7b80a97d287ce2a0246a6d2eab7d1c61e840a","type":"artist","uuid":"102b7a72-5980-48b5-b2ee-13621d8d791e"}