いたづら
type: MusicGroup
genre: j-rock
genre: singer-songwriter
popularity: 5
followers: 63
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x572f4fb75400a1c5bafc9c63484af358ed8bf8d036d153dc2925905697eb0f01
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bf9f9b55-5d16-4f94-be8a-7498aaa588ec.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bf9f9b55-5d16-4f94-be8a-7498aaa588ec.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bf9f9b55-5d16-4f94-be8a-7498aaa588ec
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x572f4fb75400a1c5bafc9c63484af358ed8bf8d036d153dc2925905697eb0f01","name":"いたづら","registered_at":"2026-06-20T18:52:17Z","symbol":"NIM1682010","token_address":"0x9c32af41710eba73c1c87b43ce834a41267a3d6d","type":"artist","uuid":"bf9f9b55-5d16-4f94-be8a-7498aaa588ec"}
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 0x572f4fb75400a1c5bafc9c63484af358ed8bf8d036d153dc2925905697eb0f01. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf9f9b55-5d16-4f94-be8a-7498aaa588ec.json and https://artists.proofprofile.net/proofs/artist/bf9f9b55-5d16-4f94-be8a-7498aaa588ec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0x572f4fb75400a1c5bafc9c63484af358ed8bf8d036d153dc2925905697eb0f01","name":"いたづら","registered_at":"2026-06-20T18:52:17Z","symbol":"NIM1682010","token_address":"0x9c32af41710eba73c1c87b43ce834a41267a3d6d","type":"artist","uuid":"bf9f9b55-5d16-4f94-be8a-7498aaa588ec"}
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