Bitcoin Forum
April 02, 2023, 01:55:31 AM *
News: Latest Bitcoin Core release: 24.0.1 [Torrent]
  Home Help Search Login Register More  
  Show Posts
Pages: « 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 [17] 18 19 20 21 22 23 24 25 26 27 »
321  Bitcoin / Bitcoin Discussion / Re: Guy on twitter claims he is working on hash method without brute force. on: May 30, 2011, 05:10:28 PM
Looking at how he "thinks" his solution will work, He doesn't understand the concept of destructive operations.  Think of it this way: The simplest hash function is %2.  Basically, given any input, find the remainder after you divide by 2.  It simplifies things down to a keyspace of 1 bit, and obviously there's lots of collisions.  However, given that information, there's no way to go backwards to the original number.  If I say the "hash" is 1, it could be 1, 3, 5, 7, 9, etc.

SHA256 has the following destructive operations:
6x non-carrying addition
Shift right
I believe the combination of ANDs and XORs ends up being destructive.

That's just in one iteration, and there are 64 iterations per hash.
322  Bitcoin / Bitcoin Discussion / Re: Guy on twitter claims he is working on hash method without brute force. on: May 30, 2011, 05:01:49 PM
If he succeeds, bitcoin compromization will be the least of our worries.  SHA256 has stood up to mathematical analysis for many years, not just from the bitcoin community but from the entire world.
323  Bitcoin / Bitcoin Discussion / Re: T-Shirt idea: "I bought this shirt when Bitcoin was worth ____" on: May 30, 2011, 06:30:28 AM
Actually, I love this idea haha.  Though, I think it'd be cooler to print shirts with the current price as you sell them, so people wouldn't have to deal with it, or couldn't forge it.
324  Bitcoin / Bitcoin Discussion / Re: Does CPU mining contribute anything to bitcoin network or economy? on: May 30, 2011, 05:14:22 AM
Right, but it must be made clear that it's the act of solving a block that strengthens the network, not the CPU power used when attempting to solve it in the first place. 

Technically, the CPU power used when attempting to solve a block keeps it competitive.  THAT'S the value you add when you don't solve a block.  Which is ridiculously low when CPU mining.
325  Other / Obsolete (selling) / Re: [SELLING] 1x5850 VisionTek & 1xGigabyte 890GPA-UD3H Motherboard on: May 29, 2011, 10:46:16 PM
What kind of hashing rates are you getting on the other cards of that type?
326  Other / Obsolete (selling) / Re: Selling Radeon 6x 5850 on: May 29, 2011, 10:42:38 PM
You don't happen to know what the hashing rate on these are, do you?
327  Other / Obsolete (selling) / Re: I am a coder willing to work for btc on: May 29, 2011, 10:41:57 PM
Bitcoder: If you get any requests for projects that are out of your scope, You can hire me as a co-developer. Cheesy
328  Other / Obsolete (selling) / Re: Selling Radeon 6x 5850 on: May 29, 2011, 09:39:56 PM
Wait, new york?  Can I pick it up in person?  I'm in Boston, and I'm going to school in NY soon, been planning a trip out there to see the campus anyway.
329  Other / Obsolete (selling) / Re: Selling Radeon 6x 5850 on: May 29, 2011, 08:58:55 PM
Payable in bitcoins?  What's the cheapest shipping method you offer to Florida?
330  Other / Obsolete (selling) / Re: Selling Radeon 6x 5850 on: May 29, 2011, 06:33:58 PM
What are you charging on top of that for the shipping?
331  Other / Obsolete (selling) / Re: Gigabyte 5870 220$ on: May 29, 2011, 06:31:25 PM
Where are you located, so I can judge shipping costs?
332  Bitcoin / Bitcoin Discussion / Re: Could I haz Bitcoin? on: May 29, 2011, 05:30:24 PM
Sure, I'll send you some. How many do you want?

I'll take some too.  100 please. Cheesy (Just kidding, of course.)
333  Bitcoin / Bitcoin Discussion / Re: Bitcoin v2.0 on: May 29, 2011, 03:54:52 PM
@Quantumplation - for your information i work in IT and i UNDERSTAND how the system works, i am just not a good writer. Technical side is not a problem and i NEVER considered mining here as scam. Read more carefully please, or ask if i wrote that in not understandable way. Mining will be always good to keep system working,

Mining is just an good advertisement for the network Smiley 'MONEY for NOTHING' ? that's how 90% of the miners work.

Idea had to be spreaded somehow and it's working this way. Good. There was NO other option. But early adopters will be rich and any of the last adopters will need to work for them JUST like that?? Thats NOT good. This can be a killer for Bitcoins.

Nice way to backtrack.

As for your argument against my English, the point of language is to communicate.  If my sentences communicate my ideas cogently and concisely, then I consider it to be good English.  Excessive perfection of grammar and spelling is only something for uptight literature snobs to occupy themselves with.  You, however, are having difficulty both communicating your ideas and understanding the points that everyone else in this forum puts forward.  THAT is poor English, not misconjugating a negative gerund or misplacing an apostrophe at 3:30am. Wink
334  Bitcoin / Bitcoin Discussion / Re: Minercoin? on: May 29, 2011, 07:29:11 AM
I have good reason to think so: most of the discourse here is pretty well-informed,

Keyword most. Wink
335  Bitcoin / Bitcoin Discussion / Re: Bitcoin v2.0 on: May 29, 2011, 07:26:14 AM
It seems like people like this have been cropping up since bitcoin began.  I remember a year ago having almost the exact same discussion with someone (even back then, when bitcoins were just barely worth more than the electricity it took to mint them, and everything was done on the CPU's and kilahashes.)

They all have a few similar features.

1) Very Poor English.  I think this leads to a lot of friction for them learning about how the system ACTUALLY works, for communicating their ideas well, or from considering the points that people rebuttle with.

2) A fundemental misunderstanding of economics/bitcoin.  "mining" being a scam?  The Mining is what holds the whole system together, what makes it cryptographically secure and worthwhile to begin with.  Maybe if you understood the whitepaper, or read a bit of the code, or took 30 seconds to think about WHY these choices were made, you'd understand that.

3) An unending, unquavering, unpersuadable attitude towards "the bitcoin doomsday" or "the Great Unjustice".

I wonder if Bitcoin, due to it's complicated nature, is doomed to be perpetually fraught with these "Throughput"s?  (Have a read of for a good laugh.)
336  Other / Obsolete (buying) / Re: Looking to sell 8 btc! on: May 28, 2011, 04:12:29 PM
What price are you looking at?
337  Other / Obsolete (selling) / Re: Ps3 Slim 120GB + 3 Games + 1 Controller/Xoom 3G Tablet/5770/EVGA P55 Mobo on: May 28, 2011, 04:10:30 PM
Anyone have a confirmed trade with you?  Do you have anything to point to for your reputation?
338  Other / Obsolete (selling) / Re: C#/.NET coder for hire as a tutor or developer on: May 28, 2011, 04:07:37 PM
Not to hijack your thread, but while dgamer5000 is unavailable due to workload, if you have any other requests I'm also a very experienced C# programmer (C++ for 6 years, then switched to C# for the last 5).
339  Bitcoin / Development & Technical Discussion / Re: handling block branches on: May 27, 2011, 12:10:27 AM
All of the miners in Mexico will put the transactions in their old chain back into the transaction queue once they switch chains.

Almost, but one minor caveat: The group with more people/miners would be accepted as the proper block chain.  If mexico had more users in their network than the US (given the relative sizes of the countries, I doubt it) then it would be the US transactions that would need to be re-validated.
340  Bitcoin / Bitcoin Discussion / Re: A bet on the future difficulty level on: May 26, 2011, 05:47:36 AM
I first read this as you betting 500,000 and 360,000 bitcoins and choked on my drink.
Pages: « 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 [17] 18 19 20 21 22 23 24 25 26 27 »
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!