Jaroslav Krombholc
type: MusicGroup
genre: opera
description: Jaroslav Krombholc (30 January 1918 – 16 July 1983) was a Czech conductor. He conducted operas at the National Theatre in Prague for almost his entire career and ranked among the most important Czech
popularity: 6
followers: 61
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x22e7e6321b2cb928996db26ac76fbce3be5b0505e18a0798583f58e8a5bd5270
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c22766d7-a35d-4349-849e-a35f04ac4269.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c22766d7-a35d-4349-849e-a35f04ac4269.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c22766d7-a35d-4349-849e-a35f04ac4269
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x22e7e6321b2cb928996db26ac76fbce3be5b0505e18a0798583f58e8a5bd5270","name":"Jaroslav Krombholc","registered_at":"2026-06-20T19:34:33Z","symbol":"NIM1694432","token_address":"0x0c6e1f4449dacd865dcbc8e5492bc992566d576c","type":"artist","uuid":"c22766d7-a35d-4349-849e-a35f04ac4269"}
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 0x22e7e6321b2cb928996db26ac76fbce3be5b0505e18a0798583f58e8a5bd5270. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c22766d7-a35d-4349-849e-a35f04ac4269.json and https://artists.proofprofile.net/proofs/artist/c22766d7-a35d-4349-849e-a35f04ac4269.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x22e7e6321b2cb928996db26ac76fbce3be5b0505e18a0798583f58e8a5bd5270","name":"Jaroslav Krombholc","registered_at":"2026-06-20T19:34:33Z","symbol":"NIM1694432","token_address":"0x0c6e1f4449dacd865dcbc8e5492bc992566d576c","type":"artist","uuid":"c22766d7-a35d-4349-849e-a35f04ac4269"}
album: Mozart, Einem, Wagner & R. Strauss: Opera Arias
  type: MusicAlbum
  date published: 2016-07-01