On Tue, May 21, 2013 at 01:39:30PM +1000, Robert Backhaus wrote: > That's good - what I had taken away from the replace-by-fee discussions was > that it was finally decided. > > My opinion is that we should be doing what we can to make 0-confs as > reliable as possible - which will always be 'not very', but a solid system > to notify on attempted double-spends is a good start. > > I'd like to know how Peter Todd's experiment with the 2BTC reward has gone. piuk wrote a double-spender that I think meets the criteria for the reward: https://blockchain.info/create-double-spend I'll get a chance to test it properly when I'm back from vacation, but looks like he's getting the 2BTC. If it does work as intended I'm also planning on doing a demo/video at the next Toronto Bitcoin Meetup to demonstrate the attack in a real-life exchange. -- 'peter'[:-1]@petertodd.org 00000000000000f31f5cd20f915e3edb8e3fceea49580235b984fea63f1f882c