ruby idiot railed posted:

Bitcoiners aren't looking down on Greece, they are negging, it's forex pua

trucutru posted:

I heart weed, lol

text editor posted:

my immutable

trucutru posted:

trucutru posted:

big scary monsters posted:

he looks like a poorly sculpted waxwork of a bond villain's henchman, left next to the bitcoin rig

Robawesome posted:

First of all - I don't like this sub. Just full disclosure. I'm an avid bitcoiner, hold a decent amount, have been invested in it for years and strongly believe in the technology.

The Management posted:

argh, no, gently caress you. that's not what full disclosure means.

DAT NIGGA HOW posted:

i am mad mad mad about internet payment systems

Tanith posted:

are there actually places that accept visa but NOT mastercard, or vis versa?

quote:

The real value of Bitcoin (self.Bitcoin)
submitted 8 hours ago by enigmatocrat
Perhaps the most compelling case for buying bitcoin is that you are buying into a network that thousands of the world's greatest minds (engineers, entrepreneurs, designers and now even old school finance execs) are working to make more valuable. You can literally buy a piece of what is shaping up to be the biggest single infrastructure project in the history of humanity, currently surpassed by arguably only the internet itself.
By purchasing a single bitcoin you are holding, at the very least, 1/21 million of the entire future value of this network until you at some point decide to divest. That's a pretty powerful thought. All you need to do is hold bitcoin, and all of the VC money pouring in, all of the innovations in the pipeline and those yet to be thought up, all of the companies fighting for dominance in this young industry, every bull run caused by the panic buying of everyone who sees that this thing just isn't going to go away. All of these things are adding to the value of your investment. Such an opportunity is unprecedented.
But, you know, it COULD go to zero. So feel free to forego an amazing opportunity for fear of loss and failure. Because humans don't do enough of that already

quote:

thousands of the world's greatest minds

I Greyhound posted:

quote:

thousands of the world's greatest minds

suffix posted:

i feel like i'm learning enough to run a pretty successful con

i have this investment opportunity for you, it looks a bit dead but that's because you're one of the few people lucky enough to hear about it, and it's set to take off at any moment in, um, greece, wait, cyprus, ok russia for sure, china, or africa, greece again, buy buy buy!!

like you don't need to invent new commodities or companies, you just keep changing the exotic other where it's about to take off, and it's a new ground floor every time

Tanith posted:

are there actually places that accept visa but NOT mastercard, or vis versa?

like, making GBS threads on amex and discover is normal, but visa and mastercard seem to both be accepted everywhere

blugu64 posted:

costco

I Greyhound posted:

Tanith posted:

are there actually places that accept visa but NOT mastercard, or vis versa?

like, making GBS threads on amex and discover is normal, but visa and mastercard seem to both be accepted everywhere

Tanith posted:

are there actually places that accept visa but NOT mastercard, or vis versa?

like, making GBS threads on amex and discover is normal, but visa and mastercard seem to both be accepted everywhere

Penguissimo posted:

t

Triglav posted:

the bitcoin logo has a butt in it

Tanith posted:

are there actually places that accept visa but NOT mastercard, or vis versa?

like, making GBS threads on amex and discover is normal, but visa and mastercard seem to both be accepted everywhere

Tanith posted:

are there actually places that accept visa but NOT mastercard, or vis versa?

like, making GBS threads on amex and discover is normal, but visa and mastercard seem to both be accepted everywhere

poik007 posted:

so what's the plan with greece

quote:

people can't take their money out of banks, so they're not going to take that money they can't have and not use it to not buy butts?

poik007 posted:

so what's the plan with greece

DAT NIGGA HOW posted:

i am mad mad mad about internet payment systems

trucutru posted:

so of loving course andreas mentioned the selling an used car and that's why that's the example of the week

Buttcoin purse posted:

There's a market for GOXBTC

TVarmy posted:

http://forums.somethingawful.com/showthread.php?threadid=3606857&pagenumber=830&perpage=40#post430956560

can't get quote to work while phone posting, but a reminder that andreas sold his car for bitcoin a few days before a crash.

TVarmy posted:

a poem i made but with bitcoins pictures



june 8 tyool 2014





2day

quote:

Breaking the house
How Primedice was exploited for $1M in Bitcoin

This is the story of how we lost around $1 million worth of bitcoin to a hacker who exploited our online casino’s RNG system. This happened last year, but we’ve decided to share our experience for transparency and so that others can learn from our mistakes.

August 2014

Shortly after the launch of the third version of Primedice, our team faced an adversary that challenged the existence of our website. Our team had nearly two years of experience building bitcoin gaming sites, however I personally had pretty limited coding experience. We were under heavy pressure to avoid further delays and released after a short week of closed beta testing.

The heist began immediately after launch with two unusual players, Nappa & Kane. We noticed unusual betting patterns from both those accounts. Kane was automatically cashed out, we reviewed Nappa’s bets and thought they were highly unusual but could find no wrong-doing and cashed him out after a delay and a brief email exchange

September 2014

After getting spooked by his delayed cashout on Nappa, the exploiter waited a few weeks and created a new account named “Hufflepuff”. Hufflepuff was the largest bettor Primedice had ever seen, he was often seen betting upwards of $8000 worth of bitcoin every second for hours on end. Our entire team was shocked that Hufflepuff continued to beat the house edge (1%) and stack up more and more profit over time.

We were highly skeptical of his winnings and were forced to hold his cashouts time and time again to investigate and each time our developers could not find any wrong-doing. We couldn’t justify greatly delaying his withdrawals when there was no evidence he was cheating. There was also strong incentive for us to promptly pay him, so he’d keep playing. We heavily explored what we thought was every possibility, ran simulations and did the math and came to the conclusion that he was just incredibly lucky.

The Discovery

About two days after sending his final withdrawal placing him above 2037 profit on the Hufflepuff account alone, our main developer detected the exploit after we found a handful of accounts sharing the same server seed.

To understand how Hufflepuff beat our system, one must understand how our provably fair system (RNG) works. A user is shown an encrypted random value (the server seed) before they bet and they must also submit their own random value (the client seed). These two random values are combined and used to determine win or lose. The random encrypted random value used for the bet then is shown to the user after the bet so that they can be guaranteed that their bet is not rigged. You can find the detailed and in-depth explanations of provably fair here:

https://primedice.com/verify and http://dicesites.com/provably-fair

Part of the functionality of our site is that we have to give out decrypted server seeds (to assure users no bet manipulation has occurred) and put a new random seed in place, essentially trashing the old revealed seed. Hufflepuff found a way to “confuse” our server, and made it give out a decrypted server seed that was also an active seed. This was done by sending it more requests than it could handle in a small time period, think hundreds of requests in under a second. The result of this is that he knew all the information required to corroborate the outcomes of his bets. He knew whether if he would win or lose, and could wager accordingly.

We figured this out after frantically checking our servers after a eureka moment. We suspected something could have been going on and eventually realized the possibility of a timing attack described above. Our database had seeds that were both inactive and in use at the same time all connected to Hufflepuff. Along these “Schrödinger” seeds existed many seemingly unused seeds connected to the same accounts, indicative of the rapid fire of requests needed to obtain these.

Déjà vu

Unfortunately we detected this exploit after cashing out Hufflepuff and his handful of accounts 2400+ coins (roughly $1M at the time). Given the nature of Bitcoin there wasn’t much we could do but take it on the chin. We reached out to Hufflepuff via his bitcointalk forum account and demanded the return of the coins, however this backfired unbelievably hard. It turned out that our developer had improperly patched the glitch. In response to our message, Hufflepuff created a new account named Robbinhood and proceeded to rapidly win 2000+ additional bitcoins using a work-around to the patch. He was unable to cashout more than 50 or 60 coins this time around as our site hot-wallet was drained.

Shortly after he privately sent us this message which was preceded with the dox of a primedice employee:

“Your offer is declined. Your demands are laughable. I’m happy to walk away and leave you be, but if you’re going to take this further, then so will I. I don’t think you want this to go further. I actually enjoy this poo poo. Your move. Oh, and by the way, there are some pending withdrawals that you need to process.”


And that was the day the house didn’t win…