Tadashi Kato
type: MusicGroup
description: was a Japanese cyclist.五輪自転車初代日本代表の加藤忠氏が死去 85歳 He competed in four events at the 1952 Summer Olympics. References Category:1935 births Category:2020 deaths Category:Japanese male cyclists Category
popularity: 2
followers: 156
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf3f2fa9c769031d85a6621e6ee998f4369a0e38adcb5c8ba19ec55fd41dfa53d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954062
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954062
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/45c63b93-df09-46ff-a712-eb66b114f4b9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/45c63b93-df09-46ff-a712-eb66b114f4b9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/45c63b93-df09-46ff-a712-eb66b114f4b9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T07:39:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf3f2fa9c769031d85a6621e6ee998f4369a0e38adcb5c8ba19ec55fd41dfa53d","name":"Tadashi Kato","registered_at":"2026-06-16T13:54:33Z","symbol":"NIM1072597","token_address":"0x1f1a8691dc65d285e8e95a266505cd4776c49405","type":"artist","uuid":"45c63b93-df09-46ff-a712-eb66b114f4b9"}
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 0xf3f2fa9c769031d85a6621e6ee998f4369a0e38adcb5c8ba19ec55fd41dfa53d. Chain 2 (Bitcoin): anchored in block 954063 (2026-06-17T07:49:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/45c63b93-df09-46ff-a712-eb66b114f4b9.json and https://artists.proofprofile.net/proofs/artist/45c63b93-df09-46ff-a712-eb66b114f4b9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T07:49:29Z
  text: {"copyright_id":"0xf3f2fa9c769031d85a6621e6ee998f4369a0e38adcb5c8ba19ec55fd41dfa53d","name":"Tadashi Kato","registered_at":"2026-06-16T13:54:33Z","symbol":"NIM1072597","token_address":"0x1f1a8691dc65d285e8e95a266505cd4776c49405","type":"artist","uuid":"45c63b93-df09-46ff-a712-eb66b114f4b9"}
album: When Winter Comes...
  type: MusicAlbum
  date published: 2024-05-20
album: Fix Your Eyes On The Son
  type: MusicAlbum
  date published: 2024-07-16
album: Finish on Fire
  type: MusicAlbum
  date published: 2024-12-13
album: Keep Your Head To The Sky
  type: MusicAlbum
  date published: 2025-05-15