Admission to the GPN is free, but the event still costs a lot of money and has to be financed. We therefore ask for a donation according to the motto "pay what you can" with a recommended donation of 42,- € or more.

You can donate on-site at the event or directly by bank transfer to our bank account:

Entropia e.V.

IBAN: DE30660501010022025613


Bank: Sparkasse Karlsruhe

Reference: Donation Entropia - GPN22

Donations to the non-profit organisation Entropia e.V. are tax-deductible in Germany. For donations up to 300,- €, the tax office usually only needs a simple receipt, i.e. a bank statement or a printout of the transfer confirmation. However, we will also be happy to provide you with a formal confirmation of your donation "Bestätigung über Geldzuwendungen" .

To receive the Bestätigung über Geldzuwendungen, send us an email to with the following information: