篠原紗英
type: MusicGroup
popularity: 4
followers: 64
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb21a7928bbd65f5c1dade82877adc7ef3ce884bcd854630fcefd3304e5048e40
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953932
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953932
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1eaca032-3796-4d08-a3e1-b6e74640b6cc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1eaca032-3796-4d08-a3e1-b6e74640b6cc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1eaca032-3796-4d08-a3e1-b6e74640b6cc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb21a7928bbd65f5c1dade82877adc7ef3ce884bcd854630fcefd3304e5048e40","name":"篠原紗英","registered_at":"2026-06-16T00:32:07Z","symbol":"NIM0881044","token_address":"0xf8decc2f9f10be5776d9bbbb02128674fcdca715","type":"artist","uuid":"1eaca032-3796-4d08-a3e1-b6e74640b6cc"}
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 0xb21a7928bbd65f5c1dade82877adc7ef3ce884bcd854630fcefd3304e5048e40. Chain 2 (Bitcoin): anchored in block 953932 (2026-06-16T11:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1eaca032-3796-4d08-a3e1-b6e74640b6cc.json and https://artists.proofprofile.net/proofs/artist/1eaca032-3796-4d08-a3e1-b6e74640b6cc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T11:10:43Z
  text: {"copyright_id":"0xb21a7928bbd65f5c1dade82877adc7ef3ce884bcd854630fcefd3304e5048e40","name":"篠原紗英","registered_at":"2026-06-16T00:32:07Z","symbol":"NIM0881044","token_address":"0xf8decc2f9f10be5776d9bbbb02128674fcdca715","type":"artist","uuid":"1eaca032-3796-4d08-a3e1-b6e74640b6cc"}
album: 心に寄り添う。
  type: MusicAlbum
  date published: 2018-04-27
album: 偽りの成功
  type: MusicAlbum
  date published: 2021-03-14
album: 私のパンセ
  type: MusicAlbum
  date published: 2021-05-31
album: 君の瞳は輝いて
  type: MusicAlbum
  date published: 2021-09-22
album: 四季のうた
  type: MusicAlbum
  date published: 2022-03-23