Jan Pieniążek
type: MusicGroup
popularity: 12
followers: 17
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4772a7cdff37bdb0c2b9e6bb1be51c4b0319478cf79e000a7afb812879bf4612
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953714
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953714
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/83f28145-9809-40c6-ae78-a18ebb548d9e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/83f28145-9809-40c6-ae78-a18ebb548d9e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/83f28145-9809-40c6-ae78-a18ebb548d9e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T00:43:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4772a7cdff37bdb0c2b9e6bb1be51c4b0319478cf79e000a7afb812879bf4612","name":"Jan Pieniążek","registered_at":"2026-06-14T18:19:20Z","symbol":"NIM0536713","token_address":"0x2b01f0a646217f88bfe3375f3068f0903d311dc5","type":"artist","uuid":"83f28145-9809-40c6-ae78-a18ebb548d9e"}
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 0x4772a7cdff37bdb0c2b9e6bb1be51c4b0319478cf79e000a7afb812879bf4612. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/83f28145-9809-40c6-ae78-a18ebb548d9e.json and https://artists.proofprofile.net/proofs/artist/83f28145-9809-40c6-ae78-a18ebb548d9e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0x4772a7cdff37bdb0c2b9e6bb1be51c4b0319478cf79e000a7afb812879bf4612","name":"Jan Pieniążek","registered_at":"2026-06-14T18:19:20Z","symbol":"NIM0536713","token_address":"0x2b01f0a646217f88bfe3375f3068f0903d311dc5","type":"artist","uuid":"83f28145-9809-40c6-ae78-a18ebb548d9e"}