キュアマリン(CV:水沢史絵)
type: MusicGroup
popularity: 5
followers: 144
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc80641657fb5bb668c692c6ede85efe5c1656aa888c27fa1f53cd9883a47250a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a9bd112a-82d1-4a5c-b354-51b4967ba9ab.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a9bd112a-82d1-4a5c-b354-51b4967ba9ab.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a9bd112a-82d1-4a5c-b354-51b4967ba9ab
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc80641657fb5bb668c692c6ede85efe5c1656aa888c27fa1f53cd9883a47250a","name":"キュアマリン(CV:水沢史絵)","registered_at":"2026-06-20T08:58:34Z","symbol":"NIM1572793","token_address":"0xb8623ed05dc6d0287275f5936fc35afa6667b0dd","type":"artist","uuid":"a9bd112a-82d1-4a5c-b354-51b4967ba9ab"}
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 0xc80641657fb5bb668c692c6ede85efe5c1656aa888c27fa1f53cd9883a47250a. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a9bd112a-82d1-4a5c-b354-51b4967ba9ab.json and https://artists.proofprofile.net/proofs/artist/a9bd112a-82d1-4a5c-b354-51b4967ba9ab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0xc80641657fb5bb668c692c6ede85efe5c1656aa888c27fa1f53cd9883a47250a","name":"キュアマリン(CV:水沢史絵)","registered_at":"2026-06-20T08:58:34Z","symbol":"NIM1572793","token_address":"0xb8623ed05dc6d0287275f5936fc35afa6667b0dd","type":"artist","uuid":"a9bd112a-82d1-4a5c-b354-51b4967ba9ab"}