Katja Pieweck
type: MusicGroup
genre: opera
popularity: 3
followers: 75
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd3e73a9fecf30e367e8e0407b44902d331caa9844ddf44bb640dcccebe975fcb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954062
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954062
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/462a2787-8381-43f8-b780-806320dce59f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/462a2787-8381-43f8-b780-806320dce59f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/462a2787-8381-43f8-b780-806320dce59f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T07:39:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd3e73a9fecf30e367e8e0407b44902d331caa9844ddf44bb640dcccebe975fcb","name":"Katja Pieweck","registered_at":"2026-06-16T14:00:27Z","symbol":"NIM1074009","token_address":"0x9109d10dd287a8b0eea9b552c1ade7e41589488c","type":"artist","uuid":"462a2787-8381-43f8-b780-806320dce59f"}
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 0xd3e73a9fecf30e367e8e0407b44902d331caa9844ddf44bb640dcccebe975fcb. Chain 2 (Bitcoin): anchored in block 954062 (2026-06-17T07:39:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/462a2787-8381-43f8-b780-806320dce59f.json and https://artists.proofprofile.net/proofs/artist/462a2787-8381-43f8-b780-806320dce59f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T07:39:10Z
  text: {"copyright_id":"0xd3e73a9fecf30e367e8e0407b44902d331caa9844ddf44bb640dcccebe975fcb","name":"Katja Pieweck","registered_at":"2026-06-16T14:00:27Z","symbol":"NIM1074009","token_address":"0x9109d10dd287a8b0eea9b552c1ade7e41589488c","type":"artist","uuid":"462a2787-8381-43f8-b780-806320dce59f"}