Markéta Irglová
type: MusicGroup
genre: singer-songwriter
description: Markéta Irglová () (born 28 February 1988) is a Czech-Icelandic singer-songwriter, musician, and actress, who starred in the 2007 film Once, which earned her a number of major awards, including the Ac
popularity: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x500f3e6be6f83a42643eb9d817047e04495990d720f2a40b3cc5fb81f98e6773
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bc099e40-b99a-4927-ad32-63ff167a2faf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bc099e40-b99a-4927-ad32-63ff167a2faf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bc099e40-b99a-4927-ad32-63ff167a2faf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x500f3e6be6f83a42643eb9d817047e04495990d720f2a40b3cc5fb81f98e6773","name":"Markéta Irglová","registered_at":"2026-06-20T17:20:03Z","symbol":"NIM1665778","token_address":"0xa6dda127ad2fa81c8233f3993045ce80d6cf8f81","type":"artist","uuid":"bc099e40-b99a-4927-ad32-63ff167a2faf"}
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 0x500f3e6be6f83a42643eb9d817047e04495990d720f2a40b3cc5fb81f98e6773. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bc099e40-b99a-4927-ad32-63ff167a2faf.json and https://artists.proofprofile.net/proofs/artist/bc099e40-b99a-4927-ad32-63ff167a2faf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
  text: {"copyright_id":"0x500f3e6be6f83a42643eb9d817047e04495990d720f2a40b3cc5fb81f98e6773","name":"Markéta Irglová","registered_at":"2026-06-20T17:20:03Z","symbol":"NIM1665778","token_address":"0xa6dda127ad2fa81c8233f3993045ce80d6cf8f81","type":"artist","uuid":"bc099e40-b99a-4927-ad32-63ff167a2faf"}