mappum

11 ms·

61.
by mappum 12y ago
The game wasn't actually rigged. This twitter account just posted lots of potential outcomes and deleted the inaccurate ones after the game.
62.
Accurate World Cup predictions posted on Twitter the day before the match(twitter.com)
3 points by mappum 12y ago|1 comments
63.
by mappum 12y ago
Double spends would be hard enough that it is not worth it for low-value transactions. The operator of Ghash would have a 30% chance of pulling it off, but that problem would be solved if hashpower/pool concentration gets solved.
64.
by mappum 12y ago
Not necessarily. If the installer of the machine checks that it downloaded the "real" blockchain, it would be expensive to forge new blocks to send to it.
65.
by mappum 12y ago
Right, and the full blockchain via radio plus SPV via the internet would allow full nodes to use this without trusting the centralized broadcaster.
66.
Kryptoradio – A Bitcoin data transmission system(kryptoradio.koodilehto.fi)
204 points by mappum 12y ago|60 comments
67.
by mappum 12y ago
That's a really smart hack, I didn't realize comments were included in the output of Function#toString. You could do other cool things, e.g. an annotation for type checking: function checkType(f) { return function(a) {
68.
by mappum 12y ago
You'd have to be a genius to spell that correctly.
69.
by mappum 12y ago
He can reduce it if he only does first names. "316 Chrises, 241 Matts, 189 Justins, ..."
70.
by mappum 12y ago
Cool idea. I'm glad I remembered how to say "ASS". Typical morse code keyers have 2 buttons, long and short, so you don't have to worry about how long to hold it down. I think that would make this a lot easier.
71.
by mappum 12y ago
I don't understand, what is the advantage over using Chrome's history menu?
72.
by mappum 12y ago
People are complaining about how bad SWT is, and I definitely agree. It's a product of systems engineers, not the modern hipster-designer breed of developers. If you fall into the latter category and want to work with Java, I highly re
73.
by mappum 12y ago
Will people really agree to an unpaid internship for some brand-new, unknown company? What's the reasoning there?
74.
by mappum 12y ago
This can't really be viable unless it is for something where the attackers need ridiculously large scale. Hashcash was actually invented for preventing spam emails, where attackers are used to sending billions of messages per day.
75.
by mappum 12y ago
Why not just use a subreddit?
76.
by mappum 12y ago
If the fix was that easy, it would have been implemented by now. Doing so would prevent some useful behavior. For instance, an embeddable Facebook like button needs to run in an iframe and uses facebook.com cookies to be able to associate t
77.
by mappum 12y ago
I hope you realize you are accepting full risk for all your users' money by using Helloblock. You have a team of 5, is it really too much work to run your own node?
78.
by mappum 12y ago
It took me a second to remember where I knew your name from. :P I used to always tell people to go to your site, once we put it up on a giant projector at a LAN party until nobody could take it anymore.
79.
by mappum 12y ago
This makes me wonder what the longest Wikipedia article title is...
80.
by mappum 12y ago
Make it say "HIRE ME!"
81.
by mappum 12y ago
I don't really expect anyone to keep theirs after the initial novelty has worn off, it was just a quick, fun thing for me to make. Hey, what happened to that flashing RGB thing with the catchy song on your website?
82.
by mappum 12y ago
It's surprising to me that this project can get so much positive attention from developers, and even investors (according to their website). It is pretty critical that the people building the future Bitcoin ecosystem learn what sort of
83.
by mappum 12y ago
It will take a week for that, and you only lose one column of pixels. If it still fits, you could prepend some spaces to your text to push it over a few months.
84.
by mappum 12y ago
WW1 flying ace, Oxford Ph.D, author and professor of medieval history http://en.wikipedia.org/wiki/Sydney_MacGillvary_Brown
85.
Show HN: Generate a git repo to show a banner on your Github profile(github.com)
40 points by mappum 12y ago|17 comments
86.
by mappum 12y ago
This is fine for learning about Bitcoin, but don't use this is in production. No matter how secure you think you are, someone can likely get into your server and serve their own JavaScript (making your clients send all their money and&
87.
by mappum 12y ago
Your username...
88.
by mappum 12y ago
I think I misunderstood your README: "Unencrypted wallets are unsupported and are never written to disk. This design decision has the consequence of generating new wallets on the fly impossible: a frontend is required to provide a wall
89.
by mappum 12y ago
The README for the btcwallet library says that it needs to decrypt the root key every time it needs to derive a new address. With hierarchical deterministic keys, you can derive a public-only key, which lets you derive new public keys witho
90.
by mappum 12y ago
The author misses the point that Kolmogorov Complexity isn't meant to be used as a practical measurement, but is just a theoretical way to think about information. There is no way to measure a string's "Kolmogorov Units"

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