Kai Petri
type: MusicGroup
popularity: 10
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1fafec927f70f1c79eac4c21fc058755e8d7e5d7d994999deca3833d4565e191
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954058
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954058
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/44ee07ee-77d1-45a8-b94e-5b43f9ced01f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/44ee07ee-77d1-45a8-b94e-5b43f9ced01f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/44ee07ee-77d1-45a8-b94e-5b43f9ced01f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T06:34:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1fafec927f70f1c79eac4c21fc058755e8d7e5d7d994999deca3833d4565e191","name":"Kai Petri","registered_at":"2026-06-16T13:34:26Z","symbol":"NIM1067801","token_address":"0xdf57ff68fa853a21a90c78b813d15444675793c1","type":"artist","uuid":"44ee07ee-77d1-45a8-b94e-5b43f9ced01f"}
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 0x1fafec927f70f1c79eac4c21fc058755e8d7e5d7d994999deca3833d4565e191. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44ee07ee-77d1-45a8-b94e-5b43f9ced01f.json and https://artists.proofprofile.net/proofs/artist/44ee07ee-77d1-45a8-b94e-5b43f9ced01f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x1fafec927f70f1c79eac4c21fc058755e8d7e5d7d994999deca3833d4565e191","name":"Kai Petri","registered_at":"2026-06-16T13:34:26Z","symbol":"NIM1067801","token_address":"0xdf57ff68fa853a21a90c78b813d15444675793c1","type":"artist","uuid":"44ee07ee-77d1-45a8-b94e-5b43f9ced01f"}