Do you need to wait for confirmation?

If not, just double spend and it's free booze all night, plus cost of transaction you'll end up paying a lot more for one beer.

This is useless.

Thanks for sharing buddy, I doubt I'll ever visit Vancouver unfortunately but it looks like you enjoyed yourself

Well this is something new. But I would rather just pay with cash than to wait for 10-15 mins for tx to get confirmed.

I remember getting a beer with Bitcoin at De Central in Vancouver back in 2015.  The machine accepted zero confirmation for Bitcoin. The risk of a double spend is actually very low, if the network is not overloaded, so for small transactions many merchants, could in the past, accept zero confirmation Bitcoin transactions for small in person transactions. The attack had to be launched right a way and this did not give the attacker a lot of lead time to get away from the retailer's premises since the transaction could be confirmed at any time. This all has changed with the current situation where Bitcoin transactions can take days to confirm. In this situation the attacker can be long gone, even outside the country, before launching the attack, which could be as simple as double spending with a much higher fee.

They sure aware of double spending. This video is maybe just for their marketing, I bet they all have to wait for their confirmation to have their beer.
It looks cool to them and people may use the machine just to impress someone. But definitely its more convenient to use the cash and you can even yell to the attendant to make it quick before your tongue dries.


It can be cool to put it outside a bitcoin company's office though. Nothing but a traditional ad.

Yeah, however I remember that on luckybit deposits were almost instant. I mean after like 1 minute you had your account credited. Is there any risk for vendor when it's allowing deposits with no confirmation?
I can see that after 2 years site is still operating, so I guess they know what they are doing

That's a good thing you can buy a beer with bitcoin somewhere. No way I'm trying to find anything bad in this, but it's really interesting to know how much did he pay in USD for that beer? I mean was it much more expensive than in the bar? Because I think if it was just 5-8% more expensive that's ok, but if it was 20% more expensive that's too much.

Nice video. Nothing new and innovative but an interestingly cool gimmick for an advertisement. I doubt that it would really take that fast for you to get your beer since we need to take confirmation into consideration. Anyhow, double-spending would be ideal and lovely for beer-lovers who would still be on their right minds after a few drinks or so.