See also the BADA55 elliptic curves, which were generated by a variety of commonly-used "verifiably random" procedures, but which all contain the hexadecimal st

See also the BADA55 elliptic curves, which were generated by a variety of commonly-used "verifiably random" procedures, but which all contain the hexadecimal string "BADA55" (or, more impressively, "BADA55EC") in their parameters somewhere: http://safecurves.cr.yp.to/bada55.html http://safecurves.cr.yp.to/bada55.html