Quote from: TierNolan

Heh, true. Are 0 input/output transactions actually valid. I thought at least 1 input and 1 output was mandatory (or 0 inputs for coinbase). You can have 0 valued outputs though.

Meh. According to spec, no, they're not valid. But they get serialized fine, it's just nothing happens with them.

Quote from: TierNolan

Have any actually ended up in the block chain?

No.

Quote from: sebastian

2: Malwritten clients, when served with a amount to send = 0 BTC by the end user (propably by mistake, user simply forgot to enter amount), do not validate that the clients amount exceed 0 Before attempting to create a transaction. When the client attempt to create the transaction, it finds out that theres no need for inputs anymore ("do until"-loop) because the amount has been fulfilled. And theres no outputs to add, because the client automatically deletes any outputs with amount=0.
Then it ends up with a "empty" transaction, and sends the "empty" transaction.

...All sounds good. except... ZOMG ZE END OF ZE WORLD!@@! A "DO UNTIL" LOOP?#^%#$^) kill me now%!## I'm having flashbacks to my pascal/delphi days lol

....And Piotr, wtf is a "correct horse battery staple" input

besides my favorite xkcd reference, that is Tongue