Ilse Hollweg
type: MusicGroup
genre: opera
description: Ilse Hollweg (23 February 1922 – 9 February 1990) was a German operatic coloratura soprano. A member of the Deutsche Oper am Rhein, she appeared at major European opera houses and festivals including
popularity: 5
followers: 46
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xce63dbf7011f0af030066fbc3376976838bee627ce1a984c2cb6e68280d1a98f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/80621994-525d-4f62-91e7-89458fe472c9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/80621994-525d-4f62-91e7-89458fe472c9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/80621994-525d-4f62-91e7-89458fe472c9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xce63dbf7011f0af030066fbc3376976838bee627ce1a984c2cb6e68280d1a98f","name":"Ilse Hollweg","registered_at":"2026-06-17T10:23:30Z","symbol":"NIM1365789","token_address":"0xf548054d9af656aadaad9a75060c949964fdda18","type":"artist","uuid":"80621994-525d-4f62-91e7-89458fe472c9"}
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 0xce63dbf7011f0af030066fbc3376976838bee627ce1a984c2cb6e68280d1a98f. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/80621994-525d-4f62-91e7-89458fe472c9.json and https://artists.proofprofile.net/proofs/artist/80621994-525d-4f62-91e7-89458fe472c9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xce63dbf7011f0af030066fbc3376976838bee627ce1a984c2cb6e68280d1a98f","name":"Ilse Hollweg","registered_at":"2026-06-17T10:23:30Z","symbol":"NIM1365789","token_address":"0xf548054d9af656aadaad9a75060c949964fdda18","type":"artist","uuid":"80621994-525d-4f62-91e7-89458fe472c9"}
album: Wagner: Siegfried, WWV 86C (Live)
  type: MusicAlbum
  date published: 2024-07-05
album: Wagner: Siegfried (Live)
  type: MusicAlbum
  date published: 2014-11-04