本堂誠
type: MusicGroup
popularity: 2
followers: 392
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7d52f5547c9237717420e978a23e7b5f5b2a443143665f419513e60a239f3f8a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e86d9a84-4fb2-484f-bd04-0887e7b65a20.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e86d9a84-4fb2-484f-bd04-0887e7b65a20.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e86d9a84-4fb2-484f-bd04-0887e7b65a20
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7d52f5547c9237717420e978a23e7b5f5b2a443143665f419513e60a239f3f8a","name":"本堂誠","registered_at":"2026-06-21T09:35:39Z","symbol":"NIM1889277","token_address":"0xeb83304d0ad3fc672dc8a1c69c9a0fca1c20edf9","type":"artist","uuid":"e86d9a84-4fb2-484f-bd04-0887e7b65a20"}
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 0x7d52f5547c9237717420e978a23e7b5f5b2a443143665f419513e60a239f3f8a. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e86d9a84-4fb2-484f-bd04-0887e7b65a20.json and https://artists.proofprofile.net/proofs/artist/e86d9a84-4fb2-484f-bd04-0887e7b65a20.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x7d52f5547c9237717420e978a23e7b5f5b2a443143665f419513e60a239f3f8a","name":"本堂誠","registered_at":"2026-06-21T09:35:39Z","symbol":"NIM1889277","token_address":"0xeb83304d0ad3fc672dc8a1c69c9a0fca1c20edf9","type":"artist","uuid":"e86d9a84-4fb2-484f-bd04-0887e7b65a20"}
album: BARITONISM ロシア・チェロ作品 集
  type: MusicAlbum
  date published: 2018-09-26
album: BARITONISM ロシア・チェロ作品 集
  type: MusicAlbum
  date published: 2018-12-05
album: BARITONISM II -フランス作品 集-
  type: MusicAlbum
  date published: 2019-12-18
album: BARITONISM II -フランス作品 集-
  type: MusicAlbum
  date published: 2020-02-05