Or you could use a public and well-defined bit sequence, such as binary digits of pi, and distribute the XORed sequence. You might even decline to mention whic

Or you could use a public and well-defined bit sequence, such as binary digits of pi, and distribute the XORed sequence. You might even decline to mention which well-defined bit sequence you used, and just leave it as an exercise for the reader to try XORing with pi, e, phi, sqrt(2), etcetera on their own.