松元環季
type: MusicGroup
genre: anime
popularity: 6
followers: 94
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe11576c365cc1c407141f10c0ccf1e3c3ea337c5da91bf5391c1324fb09ebe9a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/516a85d9-4742-4a44-9d99-b2fdb5609222.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/516a85d9-4742-4a44-9d99-b2fdb5609222.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/516a85d9-4742-4a44-9d99-b2fdb5609222
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe11576c365cc1c407141f10c0ccf1e3c3ea337c5da91bf5391c1324fb09ebe9a","name":"松元環季","registered_at":"2026-06-16T17:53:46Z","symbol":"NIM1129679","token_address":"0xdc11dba4884242c2fc56a61c1f43c99b05b3e4a7","type":"artist","uuid":"516a85d9-4742-4a44-9d99-b2fdb5609222"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe11576c365cc1c407141f10c0ccf1e3c3ea337c5da91bf5391c1324fb09ebe9a. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/516a85d9-4742-4a44-9d99-b2fdb5609222.json and https://artists.proofprofile.net/proofs/artist/516a85d9-4742-4a44-9d99-b2fdb5609222.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xe11576c365cc1c407141f10c0ccf1e3c3ea337c5da91bf5391c1324fb09ebe9a","name":"松元環季","registered_at":"2026-06-16T17:53:46Z","symbol":"NIM1129679","token_address":"0xdc11dba4884242c2fc56a61c1f43c99b05b3e4a7","type":"artist","uuid":"516a85d9-4742-4a44-9d99-b2fdb5609222"}
album: 「ケロロ軍曹」エンディングテーマ くっつけはっつけワンダーランド
  type: MusicAlbum
  date published: 2010-06-02