Hermine Haselböck
type: MusicGroup
genre: opera
description: Hermine Haselböck (born 7 March 1967 in Melk, Lower Austria) is an Austrian mezzo-soprano in opera, concert and lied. Career After graduating from Stiftsgymnasium Melk Haselböck studied with Rita S
popularity: 3
followers: 25
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x34a4729fdf4d90931d1755915f111b846cdcab0a82d762db5732b7b36770bf83
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/cfb5c2b4-176b-477a-9739-cf6194613f04.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cfb5c2b4-176b-477a-9739-cf6194613f04.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cfb5c2b4-176b-477a-9739-cf6194613f04
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x34a4729fdf4d90931d1755915f111b846cdcab0a82d762db5732b7b36770bf83","name":"Hermine Haselböck","registered_at":"2026-06-21T00:36:18Z","symbol":"NIM1763656","token_address":"0xe73fa493ef6b78d192fe8138f5cff953974620f3","type":"artist","uuid":"cfb5c2b4-176b-477a-9739-cf6194613f04"}
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 0x34a4729fdf4d90931d1755915f111b846cdcab0a82d762db5732b7b36770bf83. 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/cfb5c2b4-176b-477a-9739-cf6194613f04.json and https://artists.proofprofile.net/proofs/artist/cfb5c2b4-176b-477a-9739-cf6194613f04.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x34a4729fdf4d90931d1755915f111b846cdcab0a82d762db5732b7b36770bf83","name":"Hermine Haselböck","registered_at":"2026-06-21T00:36:18Z","symbol":"NIM1763656","token_address":"0xe73fa493ef6b78d192fe8138f5cff953974620f3","type":"artist","uuid":"cfb5c2b4-176b-477a-9739-cf6194613f04"}
album: Mahler: Lieder
  type: MusicAlbum
  date published: 2011-08-09