FIRST VANITY MULTISIG ADDRESS!!!
first in this topic but not the very first in blockchain of course
but multi-signature addresses (P2SH) can also be rare.
not all P2SH-addresses are multi-signature
for example you can create P2SH-addresses from the script <pubkey> OP_CHECKSIG
while ( true )
{
var private = random ( );
var public = private.getPublicKey ( );
var script = push ( public ) | OP_CHECKSIG;
var p2sh = script.toAddress ( );
var addr = p2sh.toString ( );
if ( addr.isInteresting ( ) )
{
///
}
}
And you can create anyone-can-spend addresses without ECDSA stuff at all
while ( true )
{
var secret = randomBytes ( );
var script = push ( secret );
var p2sh = script.toAddress ( );
var addr = p2sh.toString ( );
if ( addr.isInteresting ( ) )
{
///
}
}