無神ユーマ(CV.鈴木達央)
type: MusicGroup
popularity: 10
followers: 762
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd4d5812b0bc42a75c6cdb8779aaa3f02e3f77991ced6d27f77f3c70a5a38280a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953899
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953899
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/13163b64-16fa-4064-b58f-537659165afe.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/13163b64-16fa-4064-b58f-537659165afe.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/13163b64-16fa-4064-b58f-537659165afe
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:37:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd4d5812b0bc42a75c6cdb8779aaa3f02e3f77991ced6d27f77f3c70a5a38280a","name":"無神ユーマ(CV.鈴木達央)","registered_at":"2026-06-15T20:17:04Z","symbol":"NIM0820181","token_address":"0x02ac024b17a250754c8ebdea4cc784731bc4a260","type":"artist","uuid":"13163b64-16fa-4064-b58f-537659165afe"}
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 0xd4d5812b0bc42a75c6cdb8779aaa3f02e3f77991ced6d27f77f3c70a5a38280a. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/13163b64-16fa-4064-b58f-537659165afe.json and https://artists.proofprofile.net/proofs/artist/13163b64-16fa-4064-b58f-537659165afe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0xd4d5812b0bc42a75c6cdb8779aaa3f02e3f77991ced6d27f77f3c70a5a38280a","name":"無神ユーマ(CV.鈴木達央)","registered_at":"2026-06-15T20:17:04Z","symbol":"NIM0820181","token_address":"0x02ac024b17a250754c8ebdea4cc784731bc4a260","type":"artist","uuid":"13163b64-16fa-4064-b58f-537659165afe"}