Contributors to GNU Taler with Git access must sign the <a href="/pdf/copyright.pdf">copyright assignment</a> to ensure that the <a href="https://git.gnunet.org/gnunet-ev.git/tree/gnunet_taler_agreement.tex">GNUnet e.V. --- Taler Systems SA agreement on licensing and collaborative development</a> of the GNUnet and GNU Taler projects is satisfied.