大室撫子 (CV.斎藤千和)
type: MusicGroup
popularity: 7
followers: 48
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x06e62dd33cd061389168941c7f0a292556c6025a42ac4bff93d81f543d5dbba6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b38cd96b-310e-4178-a309-01d5535a2758.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b38cd96b-310e-4178-a309-01d5535a2758.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b38cd96b-310e-4178-a309-01d5535a2758
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x06e62dd33cd061389168941c7f0a292556c6025a42ac4bff93d81f543d5dbba6","name":"大室撫子 (CV.斎藤千和)","registered_at":"2026-06-20T14:06:28Z","symbol":"NIM1626796","token_address":"0xfc6dbf503d27e4ad80452fe356e0c0fedd93462e","type":"artist","uuid":"b38cd96b-310e-4178-a309-01d5535a2758"}
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 0x06e62dd33cd061389168941c7f0a292556c6025a42ac4bff93d81f543d5dbba6. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b38cd96b-310e-4178-a309-01d5535a2758.json and https://artists.proofprofile.net/proofs/artist/b38cd96b-310e-4178-a309-01d5535a2758.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x06e62dd33cd061389168941c7f0a292556c6025a42ac4bff93d81f543d5dbba6","name":"大室撫子 (CV.斎藤千和)","registered_at":"2026-06-20T14:06:28Z","symbol":"NIM1626796","token_address":"0xfc6dbf503d27e4ad80452fe356e0c0fedd93462e","type":"artist","uuid":"b38cd96b-310e-4178-a309-01d5535a2758"}