菅原慎一
type: MusicGroup
popularity: 2
followers: 498
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xee35608a5df4fc387e673f1d92d5e10f047cf18d78e90629d7a01939405ceb5c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953968
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953968
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2939fc6d-0c49-41f4-ac50-6ba52d4938d4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2939fc6d-0c49-41f4-ac50-6ba52d4938d4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2939fc6d-0c49-41f4-ac50-6ba52d4938d4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:01:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xee35608a5df4fc387e673f1d92d5e10f047cf18d78e90629d7a01939405ceb5c","name":"菅原慎一","registered_at":"2026-06-16T03:51:42Z","symbol":"NIM0928708","token_address":"0x7481a81595220da0a13f068a023c872e70dc4a75","type":"artist","uuid":"2939fc6d-0c49-41f4-ac50-6ba52d4938d4"}
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 0xee35608a5df4fc387e673f1d92d5e10f047cf18d78e90629d7a01939405ceb5c. Chain 2 (Bitcoin): anchored in block 953968 (2026-06-16T16:01:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2939fc6d-0c49-41f4-ac50-6ba52d4938d4.json and https://artists.proofprofile.net/proofs/artist/2939fc6d-0c49-41f4-ac50-6ba52d4938d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:01:49Z
  text: {"copyright_id":"0xee35608a5df4fc387e673f1d92d5e10f047cf18d78e90629d7a01939405ceb5c","name":"菅原慎一","registered_at":"2026-06-16T03:51:42Z","symbol":"NIM0928708","token_address":"0x7481a81595220da0a13f068a023c872e70dc4a75","type":"artist","uuid":"2939fc6d-0c49-41f4-ac50-6ba52d4938d4"}
album: ドンテンタウン (Original Sound Track)
  type: MusicAlbum
  date published: 2019-12-18
album: 猫は逃げた（Original Sound Track）
  type: MusicAlbum
  date published: 2022-04-08