Katalin Szvorák
type: MusicGroup
genre: gregorian chant
popularity: 5
followers: 136
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8105d7e5c0393d7b1ac7a96c5cbc08bcdca29394baaf57ac7e5fa5ea497f4ee8
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/503345fa-8779-40be-bbcd-0529bf60c162.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/503345fa-8779-40be-bbcd-0529bf60c162.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/503345fa-8779-40be-bbcd-0529bf60c162
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8105d7e5c0393d7b1ac7a96c5cbc08bcdca29394baaf57ac7e5fa5ea497f4ee8","name":"Katalin Szvorák","registered_at":"2026-06-16T17:51:28Z","symbol":"NIM1129131","token_address":"0x493279b07c90b436d408c09581332540e116bc23","type":"artist","uuid":"503345fa-8779-40be-bbcd-0529bf60c162"}
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 0x8105d7e5c0393d7b1ac7a96c5cbc08bcdca29394baaf57ac7e5fa5ea497f4ee8. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/503345fa-8779-40be-bbcd-0529bf60c162.json and https://artists.proofprofile.net/proofs/artist/503345fa-8779-40be-bbcd-0529bf60c162.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x8105d7e5c0393d7b1ac7a96c5cbc08bcdca29394baaf57ac7e5fa5ea497f4ee8","name":"Katalin Szvorák","registered_at":"2026-06-16T17:51:28Z","symbol":"NIM1129131","token_address":"0x493279b07c90b436d408c09581332540e116bc23","type":"artist","uuid":"503345fa-8779-40be-bbcd-0529bf60c162"}
album: Hungarian and Romanian Folkmusic From Transylvania
  type: MusicAlbum
  date published: 2014-07-15