Joanna Węgrzynowska
type: MusicGroup
popularity: 17
followers: 35
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xce2704a61f7ad9bd118880cca083f372f571b4685d892687307345ea3ffd9256
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953660
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953660
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/55d1bd61-0bb5-43a9-82e9-8b630d93d08f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/55d1bd61-0bb5-43a9-82e9-8b630d93d08f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/55d1bd61-0bb5-43a9-82e9-8b630d93d08f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T17:20:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xce2704a61f7ad9bd118880cca083f372f571b4685d892687307345ea3ffd9256","name":"Joanna Węgrzynowska","registered_at":"2026-06-14T13:23:30Z","symbol":"NIM0466157","token_address":"0x76d6cd0d5443baf3764a6f425460ff6954fb11a5","type":"artist","uuid":"55d1bd61-0bb5-43a9-82e9-8b630d93d08f"}
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 0xce2704a61f7ad9bd118880cca083f372f571b4685d892687307345ea3ffd9256. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/55d1bd61-0bb5-43a9-82e9-8b630d93d08f.json and https://artists.proofprofile.net/proofs/artist/55d1bd61-0bb5-43a9-82e9-8b630d93d08f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T22:00:24Z
  text: {"copyright_id":"0xce2704a61f7ad9bd118880cca083f372f571b4685d892687307345ea3ffd9256","name":"Joanna Węgrzynowska","registered_at":"2026-06-14T13:23:30Z","symbol":"NIM0466157","token_address":"0x76d6cd0d5443baf3764a6f425460ff6954fb11a5","type":"artist","uuid":"55d1bd61-0bb5-43a9-82e9-8b630d93d08f"}