Piotr Figiel
type: MusicGroup
popularity: 5
followers: 422
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x549be409071b89470a531b526e5b086126bb92c38715effe5fb52644745d195f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954618
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954618
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c9223de7-9d2b-441b-a9e1-443fe74c0ab0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c9223de7-9d2b-441b-a9e1-443fe74c0ab0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c9223de7-9d2b-441b-a9e1-443fe74c0ab0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:05:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x549be409071b89470a531b526e5b086126bb92c38715effe5fb52644745d195f","name":"Piotr Figiel","registered_at":"2026-06-20T22:11:23Z","symbol":"NIM1730330","token_address":"0xf837d5348194105f6c5a947ce598572ca41a151f","type":"artist","uuid":"c9223de7-9d2b-441b-a9e1-443fe74c0ab0"}
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 0x549be409071b89470a531b526e5b086126bb92c38715effe5fb52644745d195f. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9223de7-9d2b-441b-a9e1-443fe74c0ab0.json and https://artists.proofprofile.net/proofs/artist/c9223de7-9d2b-441b-a9e1-443fe74c0ab0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:05:13Z
  text: {"copyright_id":"0x549be409071b89470a531b526e5b086126bb92c38715effe5fb52644745d195f","name":"Piotr Figiel","registered_at":"2026-06-20T22:11:23Z","symbol":"NIM1730330","token_address":"0xf837d5348194105f6c5a947ce598572ca41a151f","type":"artist","uuid":"c9223de7-9d2b-441b-a9e1-443fe74c0ab0"}
album: Piotr
  type: MusicAlbum
  date published: 1971-09-13
album: Gdzieś, kiedyś
  type: MusicAlbum
  date published: 1979-09-13