Sabina Cvilak
type: MusicGroup
genre: choral
genre: classical
genre: requiem
description: Sabina Cvilak (born 8 July 1977) is a Slovenian operatic soprano, who has appeared internationally, mostly at opera houses in Europe and the United States. Her stage presence is noted in portrayals of
popularity: 9
followers: 36
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2400cb8c240c4112273cee1069a31eda83cb51521fb36841885703a29f969ff5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953867
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953867
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0686de44-fe00-41ee-a691-e88639f47d2e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0686de44-fe00-41ee-a691-e88639f47d2e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0686de44-fe00-41ee-a691-e88639f47d2e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T01:09:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2400cb8c240c4112273cee1069a31eda83cb51521fb36841885703a29f969ff5","name":"Sabina Cvilak","registered_at":"2026-06-15T15:42:08Z","symbol":"NIM0754578","token_address":"0xf6db775188588ff9d59426cfef42adedd578a4d2","type":"artist","uuid":"0686de44-fe00-41ee-a691-e88639f47d2e"}
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 0x2400cb8c240c4112273cee1069a31eda83cb51521fb36841885703a29f969ff5. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0686de44-fe00-41ee-a691-e88639f47d2e.json and https://artists.proofprofile.net/proofs/artist/0686de44-fe00-41ee-a691-e88639f47d2e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:39:16Z
  text: {"copyright_id":"0x2400cb8c240c4112273cee1069a31eda83cb51521fb36841885703a29f969ff5","name":"Sabina Cvilak","registered_at":"2026-06-15T15:42:08Z","symbol":"NIM0754578","token_address":"0xf6db775188588ff9d59426cfef42adedd578a4d2","type":"artist","uuid":"0686de44-fe00-41ee-a691-e88639f47d2e"}
album: Britten: War Requiem
  type: MusicAlbum
  date published: 2012-05-08