櫻井圭登
type: MusicGroup
popularity: 2
followers: 133
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x20063d5bf455c737e1ee5654f314585ee47a722e821d72ad5ad18567e12fe4a3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954569
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954569
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b0acd311-29c2-4625-9d32-efae7a4b9c79.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b0acd311-29c2-4625-9d32-efae7a4b9c79.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b0acd311-29c2-4625-9d32-efae7a4b9c79
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T14:36:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x20063d5bf455c737e1ee5654f314585ee47a722e821d72ad5ad18567e12fe4a3","name":"櫻井圭登","registered_at":"2026-06-20T11:59:25Z","symbol":"NIM1607566","token_address":"0x88d1c476a215abfc2839d2b40a525955a82218dc","type":"artist","uuid":"b0acd311-29c2-4625-9d32-efae7a4b9c79"}
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 0x20063d5bf455c737e1ee5654f314585ee47a722e821d72ad5ad18567e12fe4a3. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0acd311-29c2-4625-9d32-efae7a4b9c79.json and https://artists.proofprofile.net/proofs/artist/b0acd311-29c2-4625-9d32-efae7a4b9c79.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T14:36:29Z
  text: {"copyright_id":"0x20063d5bf455c737e1ee5654f314585ee47a722e821d72ad5ad18567e12fe4a3","name":"櫻井圭登","registered_at":"2026-06-20T11:59:25Z","symbol":"NIM1607566","token_address":"0x88d1c476a215abfc2839d2b40a525955a82218dc","type":"artist","uuid":"b0acd311-29c2-4625-9d32-efae7a4b9c79"}
album: クレヨン
  type: MusicAlbum
  date published: 2023-11-15
album: MASSIVE
  type: MusicAlbum
  date published: 2023-11-22
album: ユキノシタ
  type: MusicAlbum
  date published: 2024-09-27
album: UNDO
  type: MusicAlbum
  date published: 2024-09-27
album: 空
  type: MusicAlbum
  date published: 2024-09-27
album: 朝焼け
  type: MusicAlbum
  date published: 2025-07-04
album: 呼応して
  type: MusicAlbum
  date published: 2025-07-11
album: 雲外蒼天
  type: MusicAlbum
  date published: 2025-07-18