Gustaw Lutkiewicz
type: MusicGroup
description: Gustaw Lutkiewicz (29 June 1924 – 24 February 2017) was a Polish actor and singer. He was born to a Polish family in Kaunas.Zmarł Gustaw Lutkiewicz. Popularny aktor miał 93 lata He was awarded the K
popularity: 3
followers: 133
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x490f5b1d6182aebec8c5ffa36fd60d8168a42417a231b698bb1664badde846d4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4d4077d0-5002-4a22-abf3-43d2e36f7b9f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4d4077d0-5002-4a22-abf3-43d2e36f7b9f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4d4077d0-5002-4a22-abf3-43d2e36f7b9f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x490f5b1d6182aebec8c5ffa36fd60d8168a42417a231b698bb1664badde846d4","name":"Gustaw Lutkiewicz","registered_at":"2026-06-16T16:29:00Z","symbol":"NIM1109462","token_address":"0x9d1b0c90a137f12f39c0e4fd6d812c61d26c57a9","type":"artist","uuid":"4d4077d0-5002-4a22-abf3-43d2e36f7b9f"}
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 0x490f5b1d6182aebec8c5ffa36fd60d8168a42417a231b698bb1664badde846d4. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4d4077d0-5002-4a22-abf3-43d2e36f7b9f.json and https://artists.proofprofile.net/proofs/artist/4d4077d0-5002-4a22-abf3-43d2e36f7b9f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x490f5b1d6182aebec8c5ffa36fd60d8168a42417a231b698bb1664badde846d4","name":"Gustaw Lutkiewicz","registered_at":"2026-06-16T16:29:00Z","symbol":"NIM1109462","token_address":"0x9d1b0c90a137f12f39c0e4fd6d812c61d26c57a9","type":"artist","uuid":"4d4077d0-5002-4a22-abf3-43d2e36f7b9f"}