jm êà K*dEo¢¦KºÖÇ}§%»&LvNfL§Freshly set up offline computers that you trust do not grow on trees. Using an offline computer for payments...even using cryptosteel is probably easier than all this.
https://whatsonchain.com/tx/505a83e041065111c8175dbcb41fa1b456210995da638cb071c37749a422bb28