Franz Vorraber
type: MusicGroup
genre: classical piano
description: Franz Vorraber (born 24 August 1962) is an Austrian and German pianist and composer. Studies Born in Graz the son of an organist, Vorraber started practicing the piano at the age of five, followed
popularity: 3
followers: 306
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf22750b89c462ca8dbb7b9369b5ade3efdde7654e87232d6d591f71e67c78181
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a555098a-21c3-4703-9a23-01c8dbe71360.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a555098a-21c3-4703-9a23-01c8dbe71360.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a555098a-21c3-4703-9a23-01c8dbe71360
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf22750b89c462ca8dbb7b9369b5ade3efdde7654e87232d6d591f71e67c78181","name":"Franz Vorraber","registered_at":"2026-06-20T06:58:28Z","symbol":"NIM1550630","token_address":"0x52fd287112477a05e712f502221f02253f3a42cd","type":"artist","uuid":"a555098a-21c3-4703-9a23-01c8dbe71360"}
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 0xf22750b89c462ca8dbb7b9369b5ade3efdde7654e87232d6d591f71e67c78181. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a555098a-21c3-4703-9a23-01c8dbe71360.json and https://artists.proofprofile.net/proofs/artist/a555098a-21c3-4703-9a23-01c8dbe71360.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0xf22750b89c462ca8dbb7b9369b5ade3efdde7654e87232d6d591f71e67c78181","name":"Franz Vorraber","registered_at":"2026-06-20T06:58:28Z","symbol":"NIM1550630","token_address":"0x52fd287112477a05e712f502221f02253f3a42cd","type":"artist","uuid":"a555098a-21c3-4703-9a23-01c8dbe71360"}
album: Fuchs: Piano Concerto, Op. 27 & Serenade No. 5, Op. 53
  type: MusicAlbum
  date published: 2004-03-16
album: Soiree de Vienne
  type: MusicAlbum
  date published: 2021-08-28
album: Vorraber: Gedanken über R. S. für Oboe, Fagott und Klavier, Op. 7
  type: MusicAlbum
  date published: 2021-06-28
album: Chopin: Nocturnes, Etudes
  type: MusicAlbum
  date published: 2021-06-28
album: Mozart: Variationen
  type: MusicAlbum
  date published: 2021-05-28
album: Vorraber: Seven Deadly Sins
  type: MusicAlbum
  date published: 2021-05-04
album: Schumann: Sonate Op. 14, Humoreske Op. 20
  type: MusicAlbum
  date published: 2021-03-29
album: Castle Concerts: Centuries of Romance (Live)
  type: MusicAlbum
  date published: 2019-08-02
album: Grand Piano Masters: Variations by Mendelssohn, Mozart & Vorraber
  type: MusicAlbum
  date published: 2017-07-21
album: Chopin: Piano Concerto No. 1 in E Minor, Op. 11 (Arr. for Piano & String Orchestra)
  type: MusicAlbum
  date published: 2016-01-01
album: Franz Vorraber & Peter Härtling: Sätze von Liebe (Sentences of Love)
  type: MusicAlbum
  date published: 2014-10-07
album: Spielt Robert und Clara Schumann
  type: MusicAlbum
  date published: 2012-07-02
album: Grand Piano Masters: Impromptu
  type: MusicAlbum
  date published: 2011-05-01
album: Schubert: Four Impromptus, Op. 90, D. 899
  type: MusicAlbum
  date published: 2010-10-07
album: Fuchs, Fux, Krenek, Debussy, Liszt
  type: MusicAlbum
  date published: 2008-09-03
album: Bach: Inventionen, Schubert: Impromptus
  type: MusicAlbum
  date published: 2008-04-22
album: Wiener Abend
  type: MusicAlbum
  date published: 2006-09-11
album: Wolfgang Amadeus Mozart
  type: MusicAlbum
  date published: 2006-04-21
album: Charles-Camille Saint-Saëns, Antonín Dvorák
  type: MusicAlbum
  date published: 2005-08-25
album: Boccherini, Mozart, Mendelssohn
  type: MusicAlbum
  date published: 2004-06-07
album: Robert Schumann: Complete Piano Works 13
  type: MusicAlbum
  date published: 2004-04-01
album: Robert Schumann: Complete Piano Works 12
  type: MusicAlbum
  date published: 2004-03-13
album: Robert Schumann: Complete Piano Works 11
  type: MusicAlbum
  date published: 2004-02-06
album: Robert Schumann: Complete Piano Works 10
  type: MusicAlbum
  date published: 2003-11-06
album: Robert Schumann: Complete Piano Works 9
  type: MusicAlbum
  date published: 2003-09-04
album: Robert Schumann: Complete Piano Works 8
  type: MusicAlbum
  date published: 2003-06-25
album: Robert Schumann: Complete Piano Works 7
  type: MusicAlbum
  date published: 2003-04-30
album: Robert Schumann: Complete Piano Works 6
  type: MusicAlbum
  date published: 2003-03-15
album: Robert Schumann: Complete Piano Works 5
  type: MusicAlbum
  date published: 2003-02-04
album: Robert Schumann: Complete Piano Works 4
  type: MusicAlbum
  date published: 2003-01-31
album: Robert Schumann: Complete Piano Work 3
  type: MusicAlbum
  date published: 2002-10-29
album: Robert Schumann: Complete Piano Work 2
  type: MusicAlbum
  date published: 2002-10-29
album: Robert Schumann: Complete Piano Work 1
  type: MusicAlbum
  date published: 2002-01-01
album: Hommage à Schumann
  type: MusicAlbum
  date published: 2001-03-02
album: Chopin: 24 Preludes, Op. 28
  type: MusicAlbum
  date published: 1990
album: Brahms: Sonate Op. 78
  type: MusicAlbum
  date published: 2022-03-28
album: Christmas Songs for Piano
  type: MusicAlbum
  date published: 2021-12-13
album: Liszt: Mephisto Walzer
  type: MusicAlbum
  date published: 2021-11-30
album: Vorraber: Lieder Op. 24
  type: MusicAlbum
  date published: 2021-09-27
album: Vorraber: Vier Stücke, Op. 8
  type: MusicAlbum
  date published: 2021-07-13