Kotoko Tanaka
type: MusicGroup
popularity: 3
followers: 216
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x55696c10b764f8514dae6c1a7f4c910c64b14fd47dea54695a2e47e7db30f54c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953941
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953941
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/213c52dd-857c-48a9-be8c-d8e16523ffa0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/213c52dd-857c-48a9-be8c-d8e16523ffa0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/213c52dd-857c-48a9-be8c-d8e16523ffa0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:51:19Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x55696c10b764f8514dae6c1a7f4c910c64b14fd47dea54695a2e47e7db30f54c","name":"Kotoko Tanaka","registered_at":"2026-06-16T01:08:01Z","symbol":"NIM0889601","token_address":"0xe3ee629b16820b5222bd5530ea286abfa63878f4","type":"artist","uuid":"213c52dd-857c-48a9-be8c-d8e16523ffa0"}
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 0x55696c10b764f8514dae6c1a7f4c910c64b14fd47dea54695a2e47e7db30f54c. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/213c52dd-857c-48a9-be8c-d8e16523ffa0.json and https://artists.proofprofile.net/proofs/artist/213c52dd-857c-48a9-be8c-d8e16523ffa0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0x55696c10b764f8514dae6c1a7f4c910c64b14fd47dea54695a2e47e7db30f54c","name":"Kotoko Tanaka","registered_at":"2026-06-16T01:08:01Z","symbol":"NIM0889601","token_address":"0xe3ee629b16820b5222bd5530ea286abfa63878f4","type":"artist","uuid":"213c52dd-857c-48a9-be8c-d8e16523ffa0"}
album: The hole as a pond, the eyes from morning - 池としての穴、朝より来たる目- / The void fires
  type: MusicAlbum
  date published: 2019-02-01
album: Blazing in gold and dyeing white
  type: MusicAlbum
  date published: 2022-09-14
album: The Silhouette Of Us
  type: MusicAlbum
  date published: 2024-06-07