レヴィアタン
type: MusicGroup
popularity: 2
followers: 36
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbe8a76cf562ed5a6e2f7091a3900680ccdffa4e2982d0a3a3586043b7c5b9af8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953968
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953968
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/291683ce-7f68-4488-94e7-d5fe359c7efc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/291683ce-7f68-4488-94e7-d5fe359c7efc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/291683ce-7f68-4488-94e7-d5fe359c7efc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:01:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbe8a76cf562ed5a6e2f7091a3900680ccdffa4e2982d0a3a3586043b7c5b9af8","name":"レヴィアタン","registered_at":"2026-06-16T03:48:06Z","symbol":"NIM0927844","token_address":"0xc30c30c9e839e1ee67f680db43a8d322ce45f850","type":"artist","uuid":"291683ce-7f68-4488-94e7-d5fe359c7efc"}
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 0xbe8a76cf562ed5a6e2f7091a3900680ccdffa4e2982d0a3a3586043b7c5b9af8. Chain 2 (Bitcoin): anchored in block 953968 (2026-06-16T16:01:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/291683ce-7f68-4488-94e7-d5fe359c7efc.json and https://artists.proofprofile.net/proofs/artist/291683ce-7f68-4488-94e7-d5fe359c7efc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:01:49Z
  text: {"copyright_id":"0xbe8a76cf562ed5a6e2f7091a3900680ccdffa4e2982d0a3a3586043b7c5b9af8","name":"レヴィアタン","registered_at":"2026-06-16T03:48:06Z","symbol":"NIM0927844","token_address":"0xc30c30c9e839e1ee67f680db43a8d322ce45f850","type":"artist","uuid":"291683ce-7f68-4488-94e7-d5fe359c7efc"}