Bitcoin Forum
May 23, 2024, 07:37:47 AM *
News: Latest Bitcoin Core release: 27.0 [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 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 ... 195 »
361  Bitcoin / Development & Technical Discussion / Re: Transaction fees too much? on: December 10, 2013, 03:36:23 AM
Huh
362  Economy / Economics / Re: Bitcoin rates manipulated ? on: December 10, 2013, 03:25:46 AM
Try a different exchange?  There isn't such a thing as "the price".
363  Economy / Economics / Re: POBC says China no longer stockpiling USD [Nov. 20, 2013] on: December 10, 2013, 03:24:24 AM
That is a great question...I just assumed that the network hashing power required to approve a transaction in 10 minutes would remain constant once all the bitcoins have been mined.

This may be a bad assumption...please advise.

The other assumption I may have derived from here: https://en.bitcoin.it/wiki/Difficulty is that the maximum difficulty will be reached when the last bitcoin was mined.

Math:
Maximum Difficulty  = 2^224
Required network hash rate at maximum difficulty = 2^224 * 2^32 / 600 = 1.93E+74 (In order to approve a transaction in 10 minutes)

Even if some of my assumptions are incorrect, the shear size of 1.93E+74 is fascinating.  I mean the numbers of atoms in the known universe is between 10E+78 - 10E+82.

Anyway...please correct me if I got something wrong.

Pretty much all of it is wrong, sorry.

Difficulty scales to keep the block rate around 10 minutes.  It has nothing to do with how many blocks have already been mined, nor how many coins exist.  The maximum difficulty shows on that page just comes from the range of the sha256 hash function.  It isn't something we need to meet, nor that we are expected to meet.
364  Economy / Economics / Re: An Ideal Currency on: December 10, 2013, 03:18:49 AM
Fortunately for us, no one put you in charge of anything important.
365  Economy / Economics / Re: Finite Supply vs Steadily Increasing Supply on: December 10, 2013, 03:08:20 AM
1) The best possible state for a currency is one of stability
2) Units of currency are lost or made inaccessible

Therefore;

Controlled and steady inflation is better than a static money supply.

1 is not a given.  You can't possibly define "best", much less "stable".  Hell, you probably can't even define currency, but that isn't important here. Smiley  At any rate, you certainly haven't tested various configurations to check their properties for bestness (whatever that is).

Also, it does not appear to me that your conclusion follows from your argument.  You have a bait and switch thing going on.
366  Economy / Economics / Re: Russia suddenly booming? on: December 10, 2013, 02:57:03 AM
It takes a while to translate The Simpsons into Russian.
367  Economy / Speculation / Re: Is the hype/awareness stage over? on: December 10, 2013, 02:51:46 AM
Actually. Fuck that. I usually try to be level headed but there is no real money anymore! Not dollars, not stocks, not gold. This whole financial system is one big scam.

The key.

A person's willingness to accept bitcoin is directly related to how well they've processed this reality.

I'm just not sure I'd call it all a scam.  Parts of it certainly are.  But letting everything float freely isn't a scam, it is an evolution, a necessary step towards bitcoin.
368  Economy / Economics / Re: POBC says China no longer stockpiling USD [Nov. 20, 2013] on: December 10, 2013, 02:42:39 AM
Regarding network hashing power we are currently at about 7.4E+15...we need to get to 1.93E+74 to approve a transaction in 10 minutes once all the bitcoins are mined.  This kind of hashing power is equivalent to 96,500,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 of these things: http://cointerra.com/product/terraminer-iv-2ths-networked-miner-january-soldout/.  Even if we could produce a trillion of these units a second, the earth will be long gone...destroyed by an ever expanding sun.

Just out of curiosity, what on earth makes you think that there is a relationship between the number of bitcoins already produced and the hash rate of the network?
369  Economy / Speculation / Re: Max Keiser is full of shit! - Proper Translation of swiss postulate inside on: December 10, 2013, 01:36:49 AM
Quote
The Federal Council has been ordered to report, in addition to "Assess the risks of the online currency Bitcoin " from the postulate Schwaab 13.3687, also on the following questions:

- What opportunities for the financial center Switzerland sees the Federal Council in Bitcoin and other similar online currencies?
- What speaks, from the perspective of the Federal Council, against that Bitcoin and comparable online currencies will be treated as a foreign currency ?
- What regulatory instruments the Federal Council have to establish legal certainty for online Bitcoin and comparable currencies?
- If regulatory adjustments are needed, what are they and how would be the time shedule to implementation ?

    As the Federal Council writes in its response to the interpellation Kaufmann 13.3854 " Bitcoins and Money Laundering Act ", online currencies like Bitcoin introduce questions both in an economic, regulatory and operational point of view. They are legally elusive, as they are decentralized and have neither identifiable issuers or someone who guarantees a value.

Perhaps these questions could be answered, if it would be clarified that Bitcoin and similar electronic payment instruments are treated like as foreign currency. Bitcoin thus would classify in the context of the GWG , CISA , VAT Act and other laws and so being established legal certainty.

Can you clarify the bolded word?

In English, "clarify that bitcoin are treated" has a slightly different meaning than "clarify that bitcoin be treated".  In the first case, they are suggesting that a standing presumption be made explicit.  In the second case, they are proposing a standard into a void.

My German is really, really sketchy.  I can follow the translation in broad strokes, but a subtle point like this is far beyond me.
370  Bitcoin / Bitcoin Discussion / Re: Are bitcoins indestructible? on: December 09, 2013, 09:52:11 PM
Bitcoins are very abstract.  The definition of "destroyed" gets fuzzy here.

Blocks claiming less than the full possible reward most closely fit, in my opinion, the concept of destroyed.  These coins can only be recovered by a change in the protocol.*  Also in this category is the permanently unspendable coins from one or the other of the two blocks that had identical coinbase transactions.

What is "coinbase"?  How do you get a block that has "less than the full possible reward"?

Normally, a transaction has 1+ inputs and 1+ outputs.  Each block has a special transaction in it that has no inputs, which is used to reward the miner.  Where the input would normally be is a freeform field named "coinbase".  The term is also commonly (but incorrectly) used to mean the generation transaction itself.  (My bad.)

Once upon a time, a guy mined two blocks using the exact same address for the reward.  Both of those generation transactions were identical, so they had the same hash.  In bitcoin, the hash is a, ahem, "unique" identifier, so spending one of them spends both of them.  Thus, 50 coins "destroyed".

This won't happen again because blocks are now required to have their height in the coinbase field, which makes them unique even if they are otherwise identical.

And the network only checks that the generation transaction's value is less than or equal to the subsidy + the fees.  Nothing stops you from making a block that claims less than the full reward, but doing so is silly, and nowadays, expensive.  A few blocks in the past, however, claimed less reward than they could have, so the worldwide total will be slightly less than it could have been.

Quote
Coins sent to keyless addresses are the second best fit.  No one has ever known a privkey that could redeem those coins, and so we have no reason to believe that such a key exists.

Coins sent to keys that were generated but then lost is the weakest fit.  We know that a key to that address has existed in the past, and so there is every reason to believe that the key could be found again.  Thermodynamics blocks us from doing so, but math itself doesn't bar our way.

* Such a change may not be completely crazy, but is still really unlikely.  It wouldn't hurt much to allow miners to claim some fraction of the coins lost through this method in the past.  Of course, it wouldn't help much either...


How do you get a valid address with a key that "doesn't exist"?  How is an address where nobody ever had the key any different than an address where somebody had the key but has really absolutely permanently lost it.  Let's say they generated it in volatile memory, wrote it on paper, shut down the computer and then burned the paper...  how is that any different to a valid address where nobody ever really had the key?

And on that note how do you make a valid address but without ever getting the private key?  Aren't valid addresses generated from private keys?  I mean when I import a private key it knows the address without me telling it just from the private key.

Any 256-bit string is a private key.  Multiply (in EC math) G by that private key, and you have a public key.  Hash that public key in a particular way and encode it and you have an address.  Neither the multiplication nor the hashing are reversible.  You can pick a random number, hash it and see what the address would have been, even though you don't have a private key that would work for it.  Or, you can skip right to the end and make an address without knowing what the public key should have been, much less the private key.

The address hash is 160 bits.  We do know that for every input, there is one output, but we don't know that for every possible 160-bit number there is necessarily an input that creates it.  The address in my hash, for example, has a pubkey that can be hashed to create it.  But we don't know if there is any pubkey that hashes down to the bitcoin eater address.

I'm not sure if EC multiplication has the same property or not.  I *think* that for every valid public key, we know that some private key matches it even if we don't know what that private key is.  A proper cryptographer could answer that for sure.
371  Bitcoin / Bitcoin Discussion / Re: Are bitcoins indestructible? on: December 09, 2013, 06:59:46 PM
Bitcoins are very abstract.  The definition of "destroyed" gets fuzzy here.

Blocks claiming less than the full possible reward most closely fit, in my opinion, the concept of destroyed.  These coins can only be recovered by a change in the protocol.*  Also in this category is the permanently unspendable coins from one or the other of the two blocks that had identical coinbase transactions.

Coins sent to keyless addresses are the second best fit.  No one has ever known a privkey that could redeem those coins, and so we have no reason to believe that such a key exists.

Coins sent to keys that were generated but then lost is the weakest fit.  We know that a key to that address has existed in the past, and so there is every reason to believe that the key could be found again.  Thermodynamics blocks us from doing so, but math itself doesn't bar our way.

* Such a change may not be completely crazy, but is still really unlikely.  It wouldn't hurt much to allow miners to claim some fraction of the coins lost through this method in the past.  Of course, it wouldn't help much either...
372  Alternate cryptocurrencies / Altcoin Discussion / Re: Please explain Mastercoin? on: December 09, 2013, 06:48:17 PM
mastercoin is a scam system where all transactions in the mastercoin system involve sending a payment to some dude's bitcoin address.
373  Economy / Speculation / Re: What was the factor for the rise on 9/13? on: December 09, 2013, 03:29:26 PM
What the hell is 9/13?
374  Economy / Speculation / Re: When was the first price quote? on: December 09, 2013, 03:08:04 PM
I believe it was when Sirius sold 5000 BTC for $5.

I've seen recent references to it (example), but I haven't bothered looking for a primary source or the date.

This thread may be amusing in today's context.
375  Bitcoin / Pools / Re: [70 TH] p2pool: Decentralized, DoS-resistant, Hop-Proof pool on: December 09, 2013, 01:04:48 PM
But, now difficulty has hit the threshold where I will always make more on BTCGuild with less power on it than I do at p2pool.

There is no such threshold.  Well, there might be one down in the 0-10 megahash range with the CPUs where the expected number of shares earned between now and infinity is less than a half.  But 20 Ghash/sec is nowhere near that.  Once again, I'm mining with about 7 Ghash/sec, and while I see plenty of variance, sometimes going 4 or 5 days without a payout, I still get paid, and my running averages are hovering rather close to my ideal expected payout.  (I'm actually up a fair bit right now because I had shares active during the very recent string of crazy good luck, including that block with the 20 BTC fee.)
376  Bitcoin / Pools / Re: [70 TH] p2pool: Decentralized, DoS-resistant, Hop-Proof pool on: December 09, 2013, 02:33:11 AM
So, roughly half of the time, you will have an active share, and half the time you won't.

As I understand it, there are other possibilities: some of the time you'll have more than one active share, and some of the time you'll solve the block. Is this correct?

Yes.  Some fraction of the time you will have 2, 3, 4,... active shares, but for a smaller miner, 0 and 1 will be vastly dominant, with 2 as a novelty, 3 as a rarity, etc.  At any rate, the sum of the series is 1/2 in the example.

OK. Now let's continue to say your mining rigs have a hash rate good for 0.5 BTC per day. Let's say you normally use 1/5 of that hashing power mining with P2Pool, and the other 4/5 solo mining. Then, whenever you gain an active share, you dedicate 100% of your hashing power to trying to solve the block.

Do you see how this will get you more than 0.5 BTC per day, if all other things are equal?

Take 30 days again.  We'll consider your farm as 5 units with an expected earning of 0.1 BTC per day each.

If you were fully on p2pool, you'd earn 30 days * 5 units * 0.1 per unit = 15 shares = 15 BTC. - this takes 30*5=150 unit/days

With your system:
Always on p2pool: 30 days * 0.1 per unit * 1 unit = 3 shares from your dedicated p2pool boxes = 3 BTC - this takes 30*1=30 unit/days
Because you have 3 shares, your other boxes will spend 3 days working on p2pool:  3 days * 0.1 per unit * 4 units = 1.2 shares = 1.2 BTC - this takes 3 * 4 = 12 unit/days
This leaves 108 unit/days, each of which is worth 0.1 BTC, for a total earning on the other pool of 10.8 BTC
Add them all up, and you get 15 BTC.

In reality, the second number would be a little lower, because the other pool probably charges more in fees than what you are donating for p2pool.

Is any of this making sense?  If you had exactly the right hash rate to find a new share (on average) right as your previous share was rolling off, so that you had exactly one share in the chain at a time, you'd earn X per block.  If you have half that hash rate, you still earn X per block, but you do so half as often because you only have an active share half of the time.  In reality, X isn't so constant, but it still works out to earning exactly the right amount, over time.

p2pool does not cheat small miners.
377  Bitcoin / Pools / Re: [70 TH] p2pool: Decentralized, DoS-resistant, Hop-Proof pool on: December 09, 2013, 01:06:02 AM
So, roughly half of the time, you will have an active share, and half the time you won't.

As I understand it, there are other possibilities: some of the time you'll have more than one active share, and some of the time you'll solve the block. Is this correct?

Yes.  Some fraction of the time you will have 2, 3, 4,... active shares, but for a smaller miner, 0 and 1 will be vastly dominant, with 2 as a novelty, 3 as a rarity, etc.  At any rate, the sum of the series is 1/2 in the example.
378  Bitcoin / Pools / Re: [70 TH] p2pool: Decentralized, DoS-resistant, Hop-Proof pool on: December 09, 2013, 12:02:55 AM
And I'm telling you that you are wrong about this.

During the time that you have a share active, you will be getting more per block than you "should", which will balance out the times when you don't have a share active (when you will be getting less than you "should").

In the long run, (fraction of time with share active)*(reward per block) will equal out to (reward per block)*((my hash rate)/(pool hash rate)

Since you missed it before...

So if you have a whole lot of hashing power, why not dedicate a small amount of it during the time that you don't have a share active and all of it during the time that you do have a share active? Then things won't balance out, you'll get more than your fair share, and that extra has to come from somewhere (all the miners that aren't playing this game, which seems to me to be a form of pool hopping).

I suspect that all pools can be gamed in one way or another. If we discover one that definitely can't, we should just build that into Bitcoin itself.

This makes no sense.  Do you have even a rough idea of how p2pool works?

To simplify things, pretend that p2pool's hashrate is good for 1 block per day, and that the share chain only tracks the last 25 shares.  Each share is then good for 1 BTC.  Your mining rigs have a hash rate good for 0.5 BTC per day.  You will, on average, find 1 share every other day.  So, roughly half of the time, you will have an active share, and half the time you won't.  While you have a share active, you will earn 1 BTC.  While you don't have a share active, you will earn zero.  Over 30 days, you'll end up with 15 BTC either way.
379  Bitcoin / Pools / Re: [70 TH] p2pool: Decentralized, DoS-resistant, Hop-Proof pool on: December 08, 2013, 10:17:24 PM
Having miners on Elizium or some other node doesn't change the fact that my 120GHs makes me a small fry that won't get any reward anymore on p2pool.

You are absolutely, positively 100% dead wrong about this.  You still get exactly the same reward that you "should" be getting.  See any of my last few posts in this thread.

Ok I'm wrong.  And my wallet is lying to me.  And I didn't use those coins that I DIDNT get from p2pool to pay for daycare.  Sure whatever

You can tell me I'm wrong till you're blue in the face.  Fact is over the last few weeks the pittance of power I threw at BTC guild earned me a magnitude more than the majority of firepower I threw at P2pool.  I USED and Traded this BTC already so go ahead and huff and puff all you want it doesn't change FACT and Evidence at hand for me.  

What part of "over time" and "in the long run" do you not understand?  Did you miss the part where I'm running a third of the power that you are running?

I don't really care about you, but I'm not a big fan of you spreading lies in here.  P2pool does NOT cheat people with low hashrates.

I guess if you really need that $7 each day for daycare, it may make sense for you to mine somewhere where you can get the steady payout.  But you would earn more over time on p2pool.
380  Economy / Economics / Re: POBC says China no longer stockpiling USD [Nov. 20, 2013] on: December 08, 2013, 08:51:14 PM
http://www.zerohedge.com/news/2013-12-06/hugh-hendry-throws-bearish-towel-his-full-must-read-letter

The US has been weakening the dollar intentionally for several years, and against China's wishes.  The last thing China wants is a weak dollar.
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 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 ... 195 »
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!