Jan Jirasek
type: MusicGroup
popularity: 3
followers: 119
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x42b8f18135eca743f3f9015010ff4a280d392af8a21b6dbab5b34aec24d4e86a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953885
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953885
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0c821c7d-91fe-42bc-a211-25908d24df72.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0c821c7d-91fe-42bc-a211-25908d24df72.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0c821c7d-91fe-42bc-a211-25908d24df72
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T04:12:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x42b8f18135eca743f3f9015010ff4a280d392af8a21b6dbab5b34aec24d4e86a","name":"Jan Jirasek","registered_at":"2026-06-15T17:52:59Z","symbol":"NIM0785818","token_address":"0x6ca94da9aec52a317fb14a8541040f1d51e9a72f","type":"artist","uuid":"0c821c7d-91fe-42bc-a211-25908d24df72"}
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 0x42b8f18135eca743f3f9015010ff4a280d392af8a21b6dbab5b34aec24d4e86a. Chain 2 (Bitcoin): anchored in block 953885 (2026-06-16T04:12:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0c821c7d-91fe-42bc-a211-25908d24df72.json and https://artists.proofprofile.net/proofs/artist/0c821c7d-91fe-42bc-a211-25908d24df72.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T04:12:47Z
  text: {"copyright_id":"0x42b8f18135eca743f3f9015010ff4a280d392af8a21b6dbab5b34aec24d4e86a","name":"Jan Jirasek","registered_at":"2026-06-15T17:52:59Z","symbol":"NIM0785818","token_address":"0x6ca94da9aec52a317fb14a8541040f1d51e9a72f","type":"artist","uuid":"0c821c7d-91fe-42bc-a211-25908d24df72"}
album: Jan Jirásek: Czech & Moravian Christmas Carols
  type: MusicAlbum
  date published: 2015-10-09
album: Jan Jirásek: Czech & Moravian Christmas Carols
  type: MusicAlbum
  date published: 2015-10-09
album: Parallel Worlds
  type: MusicAlbum
  date published: 2017-06-09
album: Parallel Worlds
  type: MusicAlbum
  date published: 2017-06-09
album: Jan Jirásek: When the Soul Speaks
  type: MusicAlbum
  date published: 2019-01-25
album: Jan Jirásek: When the Soul Speaks
  type: MusicAlbum
  date published: 2019-01-25