桐子
type: MusicGroup
popularity: 2
followers: 197
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1e2ea55f04fed50a24e27659b721fd0f7370413df4c17590a206c4df9b42f509
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953939
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953939
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/20a71026-dcf4-4861-ab1b-e8a33560d61a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/20a71026-dcf4-4861-ab1b-e8a33560d61a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/20a71026-dcf4-4861-ab1b-e8a33560d61a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:40:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1e2ea55f04fed50a24e27659b721fd0f7370413df4c17590a206c4df9b42f509","name":"桐子","registered_at":"2026-06-16T01:00:29Z","symbol":"NIM0887802","token_address":"0xa470edeff0a5a00a43ef07c9033515c3fef23e8a","type":"artist","uuid":"20a71026-dcf4-4861-ab1b-e8a33560d61a"}
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 0x1e2ea55f04fed50a24e27659b721fd0f7370413df4c17590a206c4df9b42f509. Chain 2 (Bitcoin): anchored in block 953939 (2026-06-16T11:40:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/20a71026-dcf4-4861-ab1b-e8a33560d61a.json and https://artists.proofprofile.net/proofs/artist/20a71026-dcf4-4861-ab1b-e8a33560d61a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T11:40:13Z
  text: {"copyright_id":"0x1e2ea55f04fed50a24e27659b721fd0f7370413df4c17590a206c4df9b42f509","name":"桐子","registered_at":"2026-06-16T01:00:29Z","symbol":"NIM0887802","token_address":"0xa470edeff0a5a00a43ef07c9033515c3fef23e8a","type":"artist","uuid":"20a71026-dcf4-4861-ab1b-e8a33560d61a"}
album: 二胡でうたう♪ジブリ「晴れ種」
  type: MusicAlbum
  date published: 2009-08-08
album: 二胡ほりっく
  type: MusicAlbum
  date published: 2014-11-24
album: 二胡でうたう♪ジブリ『晴れ種』（再リリース版）
  type: MusicAlbum
  date published: 2016-04-13
album: ハナミズキ (feat. 一青窈) [Cover]
  type: MusicAlbum
  date published: 2023-09-07