Everyone serious about Bitcoin security should try to understand this diagram: Numbers Skip ahead if you completely understand what binary, decimal, and hexadecimal means. Decimal means that each digit has 10 possibilities (0,1,2,3,4,5,6,7,8, or 9). The number 6.15 has 3 digits, and by-the-way, this particular total “size” is how many bitcoin one should try to … Continue reading Understanding Bitcoin Public and Private Keys (3rd Edition)