Kuba Sienkiewicz
type: MusicGroup
popularity: 13
followers: 1447
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2137d17034226449c69e165152f588ca140c42f89289ae4ba3c51c7b001b25f6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953630
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953630
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3039e23e-2447-4705-8c19-87bfac937634.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3039e23e-2447-4705-8c19-87bfac937634.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3039e23e-2447-4705-8c19-87bfac937634
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T12:06:27Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2137d17034226449c69e165152f588ca140c42f89289ae4ba3c51c7b001b25f6","name":"Kuba Sienkiewicz","registered_at":"2026-06-14T09:35:02Z","symbol":"NIM0411636","token_address":"0x01639f16a476956ef018819df3b856992787438d","type":"artist","uuid":"3039e23e-2447-4705-8c19-87bfac937634"}
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 0x2137d17034226449c69e165152f588ca140c42f89289ae4ba3c51c7b001b25f6. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3039e23e-2447-4705-8c19-87bfac937634.json and https://artists.proofprofile.net/proofs/artist/3039e23e-2447-4705-8c19-87bfac937634.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T12:06:27Z
  text: {"copyright_id":"0x2137d17034226449c69e165152f588ca140c42f89289ae4ba3c51c7b001b25f6","name":"Kuba Sienkiewicz","registered_at":"2026-06-14T09:35:02Z","symbol":"NIM0411636","token_address":"0x01639f16a476956ef018819df3b856992787438d","type":"artist","uuid":"3039e23e-2447-4705-8c19-87bfac937634"}
album: Studio Szum
  type: MusicAlbum
  date published: 2000-01-01
album: Powrot Brata
  type: MusicAlbum
  date published: 2003-01-01
album: Drugie dno
  type: MusicAlbum
  date published: 2018-10-01
album: Moja bańka
  type: MusicAlbum
  date published: 2022-12-09
album: piękne dni
  type: MusicAlbum
  date published: 2024-10-29
album: Pani Bóg
  type: MusicAlbum
  date published: 2024-11-08