あんみつ姫（小泉今日子）
type: MusicGroup
genre: city pop
genre: kayokyoku
popularity: 7
followers: 109
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x39127e2ea554742f4a7bad11d868228d5c37a0865ec641b80ab765792822c778
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f85c8a1a-77e7-4dfc-b04e-9ff459e9a4e3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f85c8a1a-77e7-4dfc-b04e-9ff459e9a4e3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f85c8a1a-77e7-4dfc-b04e-9ff459e9a4e3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x39127e2ea554742f4a7bad11d868228d5c37a0865ec641b80ab765792822c778","name":"あんみつ姫（小泉今日子）","registered_at":"2026-06-21T15:59:35Z","symbol":"NIM1966544","token_address":"0x36df4e3d5624c9cd8211d98a57e33872d315fcaf","type":"artist","uuid":"f85c8a1a-77e7-4dfc-b04e-9ff459e9a4e3"}
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 0x39127e2ea554742f4a7bad11d868228d5c37a0865ec641b80ab765792822c778. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f85c8a1a-77e7-4dfc-b04e-9ff459e9a4e3.json and https://artists.proofprofile.net/proofs/artist/f85c8a1a-77e7-4dfc-b04e-9ff459e9a4e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0x39127e2ea554742f4a7bad11d868228d5c37a0865ec641b80ab765792822c778","name":"あんみつ姫（小泉今日子）","registered_at":"2026-06-21T15:59:35Z","symbol":"NIM1966544","token_address":"0x36df4e3d5624c9cd8211d98a57e33872d315fcaf","type":"artist","uuid":"f85c8a1a-77e7-4dfc-b04e-9ff459e9a4e3"}
album: クライマックス御一緒に
  type: MusicAlbum
  date published: 1984-01-01