natsu no owari
type: MusicGroup
genre: noise rock
genre: vocaloid
popularity: 2
followers: 177
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6eb50e66b3dac3c233d7b17b66e83e071459e90c0bb323a30e384733fc4f3c18
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/54b4ac84-bb6f-4c28-8f25-b535fee3c60b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/54b4ac84-bb6f-4c28-8f25-b535fee3c60b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/54b4ac84-bb6f-4c28-8f25-b535fee3c60b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6eb50e66b3dac3c233d7b17b66e83e071459e90c0bb323a30e384733fc4f3c18","name":"natsu no owari","registered_at":"2026-06-16T19:10:48Z","symbol":"NIM1148060","token_address":"0x3948960b108b35762a160836908d4c21baae5c9e","type":"artist","uuid":"54b4ac84-bb6f-4c28-8f25-b535fee3c60b"}
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 0x6eb50e66b3dac3c233d7b17b66e83e071459e90c0bb323a30e384733fc4f3c18. 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/54b4ac84-bb6f-4c28-8f25-b535fee3c60b.json and https://artists.proofprofile.net/proofs/artist/54b4ac84-bb6f-4c28-8f25-b535fee3c60b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x6eb50e66b3dac3c233d7b17b66e83e071459e90c0bb323a30e384733fc4f3c18","name":"natsu no owari","registered_at":"2026-06-16T19:10:48Z","symbol":"NIM1148060","token_address":"0x3948960b108b35762a160836908d4c21baae5c9e","type":"artist","uuid":"54b4ac84-bb6f-4c28-8f25-b535fee3c60b"}
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