That would work for graphical clients but not so much for textual versions. Some type of ASCII-art might serve the purpose but whatever solution is chosen it wi

That would work for graphical clients but not so much for textual versions. Some type of ASCII-art might serve the purpose but whatever solution is chosen it will be hard to visualise the entropy of a 64-digit hex string in such a way as to distinguish it from the same string with 1 bit flipped.