Karol Machata
type: MusicGroup
description: Karol Machata (13 January 1928 – 3 May 2016) was a Slovak actor. He appeared in more than 40 films and television shows between 1951 and 1992. He was inducted into the Hall of Fame at the 8th OTO Awar
popularity: 16
followers: 419
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5afc3306918193f0035fe3b953f83c2e3102e25192441f2f14e75c4abd3390f6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953758
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953758
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b370fb9e-eff1-42d2-98cb-8a1c14ea0d75.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b370fb9e-eff1-42d2-98cb-8a1c14ea0d75.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b370fb9e-eff1-42d2-98cb-8a1c14ea0d75
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T07:48:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5afc3306918193f0035fe3b953f83c2e3102e25192441f2f14e75c4abd3390f6","name":"Karol Machata","registered_at":"2026-06-14T23:23:27Z","symbol":"NIM0609253","token_address":"0x4979a33c241ac5832583ac107b9b07a140ce7d82","type":"artist","uuid":"b370fb9e-eff1-42d2-98cb-8a1c14ea0d75"}
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 0x5afc3306918193f0035fe3b953f83c2e3102e25192441f2f14e75c4abd3390f6. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b370fb9e-eff1-42d2-98cb-8a1c14ea0d75.json and https://artists.proofprofile.net/proofs/artist/b370fb9e-eff1-42d2-98cb-8a1c14ea0d75.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T08:04:42Z
  text: {"copyright_id":"0x5afc3306918193f0035fe3b953f83c2e3102e25192441f2f14e75c4abd3390f6","name":"Karol Machata","registered_at":"2026-06-14T23:23:27Z","symbol":"NIM0609253","token_address":"0x4979a33c241ac5832583ac107b9b07a140ce7d82","type":"artist","uuid":"b370fb9e-eff1-42d2-98cb-8a1c14ea0d75"}
album: Rozprávky na dobrú noc 1
  type: MusicAlbum
  date published: 2005-06-24