This work is completely derivative of Yves Klein's Zone de Sensibilité Picturale Immatérielle from 1959.
> The work involved the sale of documentation of ownership of empty space (the Immaterial Zone), taking the form of a receipt, in exchange for gold; if the buyer wished, the piece could then be completed in an elaborate ritual in which the buyer would burn the receipt, and Klein would throw half of the gold into the Seine.
> The work involved the sale of documentation of ownership of empty space (the Immaterial Zone), taking the form of a receipt, in exchange for gold; if the buyer wished, the piece could then be completed in an elaborate ritual in which the buyer would burn the receipt, and Klein would throw half of the gold into the Seine.
https://en.wikipedia.org/wiki/Zone_de_Sensibilit%C3%A9_Pictu...