礼瀬 マヨイ（cv.重松 千晴）
type: MusicGroup
popularity: 10
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0127e75bee01bd390a3acab0d059102d8b03fb9ebc9a75b1adfe13a6a38e39a8
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/3ca97c26-21b2-488b-b1b8-9ae850b25154.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3ca97c26-21b2-488b-b1b8-9ae850b25154.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3ca97c26-21b2-488b-b1b8-9ae850b25154
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0127e75bee01bd390a3acab0d059102d8b03fb9ebc9a75b1adfe13a6a38e39a8","name":"礼瀬 マヨイ（cv.重松 千晴）","registered_at":"2026-06-16T10:45:16Z","symbol":"NIM1027459","token_address":"0x19c209ec236741f9406169d5c20f78e9930fdec4","type":"artist","uuid":"3ca97c26-21b2-488b-b1b8-9ae850b25154"}
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 0x0127e75bee01bd390a3acab0d059102d8b03fb9ebc9a75b1adfe13a6a38e39a8. 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/3ca97c26-21b2-488b-b1b8-9ae850b25154.json and https://artists.proofprofile.net/proofs/artist/3ca97c26-21b2-488b-b1b8-9ae850b25154.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x0127e75bee01bd390a3acab0d059102d8b03fb9ebc9a75b1adfe13a6a38e39a8","name":"礼瀬 マヨイ（cv.重松 千晴）","registered_at":"2026-06-16T10:45:16Z","symbol":"NIM1027459","token_address":"0x19c209ec236741f9406169d5c20f78e9930fdec4","type":"artist","uuid":"3ca97c26-21b2-488b-b1b8-9ae850b25154"}