井之原小星（CV：もものはるな）
type: MusicGroup
popularity: 5
followers: 17
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x544cb0993a72f3968d5934b0594a2408656721ae8db1039d718f26a0d58b8aeb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953970
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953970
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/29e046b9-6e5c-48f4-b084-703c9019529f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/29e046b9-6e5c-48f4-b084-703c9019529f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/29e046b9-6e5c-48f4-b084-703c9019529f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:09:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x544cb0993a72f3968d5934b0594a2408656721ae8db1039d718f26a0d58b8aeb","name":"井之原小星（CV：もものはるな）","registered_at":"2026-06-16T04:05:05Z","symbol":"NIM0931905","token_address":"0x6b9079c515fcee5448bf627683e389cfe4df7b7f","type":"artist","uuid":"29e046b9-6e5c-48f4-b084-703c9019529f"}
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 0x544cb0993a72f3968d5934b0594a2408656721ae8db1039d718f26a0d58b8aeb. Chain 2 (Bitcoin): anchored in block 953970 (2026-06-16T16:09:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29e046b9-6e5c-48f4-b084-703c9019529f.json and https://artists.proofprofile.net/proofs/artist/29e046b9-6e5c-48f4-b084-703c9019529f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:09:39Z
  text: {"copyright_id":"0x544cb0993a72f3968d5934b0594a2408656721ae8db1039d718f26a0d58b8aeb","name":"井之原小星（CV：もものはるな）","registered_at":"2026-06-16T04:05:05Z","symbol":"NIM0931905","token_address":"0x6b9079c515fcee5448bf627683e389cfe4df7b7f","type":"artist","uuid":"29e046b9-6e5c-48f4-b084-703c9019529f"}