barbegal

58 ms·

601.
by barbegal 9y ago
As far as I can tell it has mostly issued Tethers to itself [1](as Bitfinex). Bitfinex/Tether are hoping that they can entice customers to use their platforms for arbitrage with other exchanges such that they can cream off a healthy ma
602.
by barbegal 9y ago
4% of addresses contain 96% of Bitcoins[1]. It could be true that 96% of Bitcoins are controlled by 4% of Bitcoin owners but there's no way of knowing. Some addresses belong to multiple people, some to no one, multiple addresses belong
603.
by barbegal 9y ago
The 787 air quality is better for two reasons: it has a higher humidity and it contains less VOCs. The reason for both of these factors is that the 787 is designed to take cabin air directly from the atmosphere rather than from a compressor
604.
by barbegal 9y ago
That might actually work but there is a lot to analyse to make sure that something is actually at stake. Firstly can dishonesty be detected and traced back to a stake holder? I'm not sure about that within specific randomness generatin
605.
by barbegal 9y ago
I agree, the version of the paper published for the Workshop on the Economics of Information Security http://weis2017.econinfosec.org/wp-content/uploads/sites/3/2... has a large number of small mistakes
606.
by barbegal 9y ago
The key is: >you could come up with some rotation mechanism so that only certain accounts can participate in a certain round which is impossible to do in a way that can't be exploited and is fair (without relying on some external so
607.
by barbegal 9y ago
The paper is available online at http://weis2017.econinfosec.org/wp-content/uploads/sites/3/2... I wouldn't call it a particularly rigorous analysis and it provides no more incite than what has been
608.
by barbegal 9y ago
And the same applies to proof of stake. You need some form of external randomness to give you security. Of course many people have tried to come up with schemes where randomness can be created fairly by a group of people who don't nece
609.
by barbegal 9y ago
Both styles since both reward the creators of a block and both select the creators of a block through some form of randomness. So in both schemes there is an incentive to bias that randomness in your favour.
610.
by barbegal 9y ago
That paper assumes that at most f out of at least 3f+1 participants are dishonest. In practice one can't make that assumption since sybil attacks are easy.
611.
by barbegal 9y ago
So the randomness providers secure the deposit of their own randomness. The circularity of the system means it won't work in practice. RANDAO is secured by the proof of work miners.
612.
by barbegal 9y ago
They are probably as good as we have today but even they could be manipulated if large amounts of money was on the line. I can't see any way of introducing algorithms to make it more difficult to manipulate though.
613.
by barbegal 9y ago
That's all well and good but who manages the security deposit?
614.
by barbegal 9y ago
Proof of stake doesn't work in practice unless we can find a source of randomness that is globally available, non-influencable and everyone can agree on [1]. At the moment, that source of randomness is completely elusive. It might be p
615.
by barbegal 9y ago
In the "Get most active nations" section the URL being queried is: " http://api.elsevier.com/content/search/scopus?apiKey=" + apikey + "&query=Artificial+Intelligence+" + query + &
616.
by barbegal 9y ago
I wouldn't trust any of the graphs or much of the statistical analysis. I was particularly intrigued by the last graph showing the geographic distribution of research. Thankfully, the author has published their methodology on github [1
617.
by barbegal 9y ago
That depends on what you mean by "Operating System". Lots of real time operating systems don't have virtual memory or file systems. But I would agree with you that the "Baking Pi" course covers little of what one wo
618.
by barbegal 9y ago
One of the big problems with Spectre and Meltdown is that they are due to behaviours and components of a processor that are not well documented. Caches, branch predictors, out of order execution and superscalar execution are all things that