This violin, known as the ‘Auer, Benvenuti’, is a fine and old Italian instrument, the work of Antonio Stradivari of Cremona dated 1699 and a typical example of the maker’s work of the above period. Documents and contracts connecting NFT and real-world asset are accessible under app.vountain.io and have been used and checked for completeness and plausibility for minting purposes by vountain GmbH, according to the asset owner's permission.