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Re: USB Block Erupter on a Mac? Anybody got it working?
by
notbrain
on 14/06/2013, 18:26:18 UTC
Same issue on Win7 - the flaky erupter can't be recognized for some reason (Error 43 IIRC). Sigh.
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Board Hardware
Re: USB Block Erupter on a Mac? Anybody got it working?
by
notbrain
on 14/06/2013, 18:18:33 UTC
I don't have the devices to test, but perhaps you'd be able to attach another device after renaming one of the existing ones? Does it matter which order you plug them in in?

Can you point me to any directions on how to rename a device? I'm not having much luck with searches. Thanks!
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Board Hardware
Re: USB Block Erupter on a Mac? Anybody got it working?
by
notbrain
on 14/06/2013, 17:20:45 UTC
I'm trying to get a couple erupters working on OSX but I keep running into issues where only 1 of the 2 erupters can be recognized. It seems like a SILabs driver issue but it also seems like one of the erupters might be a little flaky...anyone have any ideas? Does anyone have multiple erupters running on an Anker 10-port on OSX 10.8.3? My next recourse is to try on my Win7 laptop but was hoping to control these from OSX.

Using SiLabs driver for OSX, and MacMiner's bfgminer from the command line.

The strange thing is there was one point where somehow both erupters were recognized - it was a strange combination of plugging my non-working WD Portable HD in to the Anker hub with the *working* erupter, then plugging in the flaky one. After running for a few hours the flaky erupter appeared "dead" to bfgminer, to my dismay.

The blue light on the anker doesn't even light up with only the flaky erupter plugged in - this is on both my Mac Pro tower and my Mac Mini.

The main error I see in console is

Code:
The IOUSBFamily was not able to enumerate a device.
The IOUSBFamily is having trouble enumerating a USB device that has been plugged in.  It will keep retrying.

also

Code:
6/14/13 9:45:39.780 AM com.apple.kextd[12]: Can't load /System/Library/Extensions/SiLabsUSBDriver.kext - no code for running kernel's architecture.
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Board Project Development
Re: $500 worth of Raspberry Pi chipsets and accessories. No idea how/what to code :(
by
notbrain
on 07/06/2013, 16:37:58 UTC
http://www.adafruit.com/products/661

If you have any of these and don't need them, I'll take them off your hands for a decent discount.  Grin
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Board Development & Technical Discussion
Re: How do Paper Wallets work? I'm completely mystified
by
notbrain
on 21/04/2013, 20:04:43 UTC
https://blockchain.info/wallet/paper-tutorial

All you need to access a certain wallet address is the private key. Create address/key pair offline, then print out the address and private key on paper, which gives you all the info you need to spend the BTC. Send BTC to this address and the only way to spend it is to know the printed details.

Your wallet can contain many different addresses and keys (behind the scenes) as you send/receive coins, and that's how they grow in size. This is why it's wise to make continual backups (or more often than every 100 transactions your wallet was a part of) in order to make sure you back up all the new addresses your wallet creates in the course of spending/receiving.
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Board Goods
Re: Credit card shaped 16GB USB sticks with engraved Bitcoin logo
by
notbrain
on 19/04/2013, 05:43:06 UTC
I'll take 5. BTC payment.
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Topic
Board Bitcoin Discussion
Re: Analyze: "BitCon: Don't"
by
notbrain
on 05/04/2013, 16:35:10 UTC
Quote
Then there is what I consider to be Bitcoin's fatal flaw -- the inherent design and de-coupling of the currency from the obligation of sovereigns.  Yes, obligation -- not privilege.

Bitcoins are basically cryptographic "solutions."  The design is such that when the system was initialized it was reasonably easy to compute a new solution, and thus "mine" a coin.  As each coin is "mined" the next solution becomes more difficult.  The scale of difficulty was set up in such a fashion that it is computationally infeasable using known technology and that expected to be able to be developed in the foreseeable future to reach the maximum number of coins that can be in circulation.  Since each cryptographic solution is finite and singular, and each one gets progressively harder to discern, those who first initiated Bitcoin were rewarded with a large number of easily-mined coins for a very cheap "investment" while the computational difficulty of "extracting" each additional one goes up.

That means that if you were one of the early adopters you get paid through the difficulty of those who attempt to mine coins later! That is, your value increases because the later person's expenditure of energy increases rather than through your own expenditure of energy.  If that sounds kind of like a pyramid scheme, it's because it is very similar to to how the "early adopters" in all pyramid schemes get a return -- your later and ever-increasing effort for each subsequent unit of return accrues far more to the early adopter than it does to you!

I'll just cover this excerpt:

1) I have no idea what this "obligation of sovereigns" has to do with bitcoin. Sounds pretty weird and not something I want anything to do with if I can help it.



Yeah - and if history is any guide WRT the Fed, and their "obligation" to "maintain a strong dollar" / "provide liquidity in a crisis" / "provide solvency in a crisis" as directed by the sovereign...how cute. They did exactly the opposite for every crisis.
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Board Bitcoin Discussion
Re: I think I am going to withdraw my Bitcoin Kickstarter
by
notbrain
on 05/04/2013, 15:52:37 UTC
Don't listen to people in this thread. When Casascius released his first version of his coins, he had a typo, and people who contribute nothing to the advancement of Bitcoin were really harsh. Screw the freeloaders. Give it a go.  See what happens.

+1. Yep. Ignore the haters or people who think its expensive. $6k is not that much and you'll probably spend over 100 hours on this (and I'm not even including server costs/setup). All software project planning is guessing and kind of worthless, no matter how simple the app seems from the start; there are hidden costs and time sinks you will never know about beforehand (like this thread of holier than thous). You should get a decent pay out of this especially for the time and risk exposure. Everybody's a naysayer and wishes they could do it too. Let them. Talk is cheap, and so are cheap services and people who can say "I can do it cheaper." Just forge ahead despite the criticism.
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Board Economics
Re: Bitcoin about to hit $100.
by
notbrain
on 01/04/2013, 14:14:18 UTC
http://i.imgur.com/JNxL5f8.png

And a bunch of it at that.
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Board Beginners & Help
Re: God Save the Queen: Dec 2012 FDIC paper on G-SIFIs (bank demoliton scheme)
by
notbrain
on 31/03/2013, 18:52:28 UTC
Nobody needs "new powers". We need new laws to prevent these orgs from becoming too big to fail in the first place. What happened to isolation of depositor funds and investment funds? Oh yeah, in the US we removed that law (Glass-Steagall) under Clinton.

In his book Antifragile, N. N. Taleb argues that if you work for a Too Big To Fail (G-SIFI) institution, no one working at such an institution is allowed to earn more individually than the highest paid civil servant. Incentivize corporations to stay small so they can earn more money.

And for fuck's sake, can we go back to isolating depositor and pensioner/fixed income money from the money that banks use to gamble in the capital markets? Until we do, our system will continue to crash and Central Banks will continue to steal from the middle class. This N Korea stuff makes me wonder if the puppet-masters have fully realized this and are planning a diversion.
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Board Scam Accusations
Re: PSA about Butterfly Labs what to say?
by
notbrain
on 27/03/2013, 05:44:14 UTC
Too generic.  ASICminer is paying dividends and doing what they said they would do.  Avalon has delivered to the tune of 1/2 of the total network hashrate.  Helveticacoin isn't asking for prepay and will be very interesting when they hit the market.  

BFL is the only company advertising what they can't demonstrate.

Then change the text to say BFL outright. They still own the rights to their name and could kill the ad or threaten legal action. I almost went with "3 LETTER ACRONYM ASIC COMPANY..."

Just please don't use that other horrific colored background gradient.
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Board Scam Accusations
Re: PSA about Butterfly Labs what to say?
by
notbrain
on 27/03/2013, 05:34:19 UTC
http://i.imgur.com/EFlAWdk.png

ASIC COMPANIES ARE HUGE GAMBLE AT BEST, SCAMS AT WORST. NEW TO BTC? YOU MUST SEE THIS!
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Board Economics
Re: Antifragility or robust? Nassim Taleb on fragility, centralization,..
by
notbrain
on 27/03/2013, 05:09:21 UTC
Quote
http://reason.com/archives/2013/03/24/how-debt-ruins-systems  Nicholas Taleb: Antifragility is something that likes volatility and likes variation, likes turmoil, likes stress—up to a point. The opposite would be robust. Robust is like a rock. It doesn’t care. Diamond is perfectly robust. What is antifragile gains from disorder and may even need disorder for fuel

Certainly seems that bitcoin gains from disorder and there is plenty of fuel.

I am currently listening to this book, about 70% through.

I'm not so sure Bitcoin is antifragile yet--in the past it has been hit with Black Swan events (hacking -> loss of confidence) and the price went straight back down. The "problem" is as it makes further inroads into the mainstream, the technology and services surrounding it (hedge funds, merchant acceptance, etc) will increase the complexity of the bitcoin arena, and we will fall into the same trap as traditional markets (people calling for "protection" from fraud by--who else? Their government). One edge it does have is that currently no government can devalue it without considerable computing power, intelligence, and organization. An intervention from any government would only make for a huge opportunity for other governments, which might lend towards antifragility. But alas disorder from outside bitcoin is not disorder in the system of bitcoin itself.

That said, it is true that the software is continually improved after each bug or fork or error is found (a modicum of antifragility). But like the book says, you shouldn't confuse lack of evidence for evidence of lack. Or something like that.

Still grokking this. Taleb did an AMA the other day and only had a passing remark about Bitcoin (a government-free currency is something that is sorely needed), would love to hear his recommendations as to how to make it intrinsically antifragile.
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Board Economics
Re: Cyprus bail-out: savers will be raided to save euro in future crises, says...
by
notbrain
on 26/03/2013, 14:40:54 UTC
"lack of market contagion"

LOLZ. Just wait. Idiotas!

ps. this should probably go in Economics.
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Board Hardware
Re: ** Pulsar Infinity X1 - 15nm Quantum Chipset Announcement **
by
notbrain
on 25/03/2013, 19:20:20 UTC
I all seriousness, I wonder how far out from now quantum technology is. If it's in 20 years, hypothetically, what does that mean to bitcoin?

http://www.nytimes.com/2013/03/22/technology/testing-a-new-class-of-speedy-computer.html?pagewanted=all&_r=0

http://www.bbc.com/future/story/20130218-diamond-idea-for-quantum-computer

QuantumCoin w/quantum crypto, unbreakable except only by God herself.
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Board Economics
Re: The Invention of Money
by
notbrain
on 24/03/2013, 19:51:11 UTC
I second this, I recall listening about the Brazilian Real and how they made people believe in it again. Kind of funny how the word "believe" has "be lie" in it. We all come together and agree to "make be a lie".

We're making it all up.

I also recommend Neal Stephenson's Cryptonomicon and The Baroque Cycle trilogy (Quicksilver, The Confusion, and The System of The World). A recurring theme is the invention of money and the roots of the financial system we have today.

http://en.wikipedia.org/wiki/Cryptonomicon

http://en.wikipedia.org/wiki/The_Baroque_Cycle

Quote
Neal Stephenson was inspired to write The Baroque Cycle when, while working on Cryptonomicon, he encountered a statement by George Dyson in Darwin Among the Machines that suggests Leibniz was "arguably the founder of symbolic logic and he worked with computing machines."He also had heard considerable discussion of the Leibniz – Newton feud and Newton's work at the treasury during the last 30 years of his life. He found "this information striking when [he] was already working on a book about money and a book about computers." Further research into the period excited Stephenson and he embarked on writing the historical piece that became The Baroque Cycle.
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Board Economics
Re: European Union is robbing its citizens' bank accounts. 9.9% to be confiscated.
by
notbrain
on 23/03/2013, 18:19:36 UTC
This is the exact reason we need to get bitcoin in shops everywhere.  I think in weeks to come we will see a huge influx in bitcoin users and media attention. I would be furious if the government stole 9.9% of my hard earned.

I guess this goes back to the question of do you use bitcoin as your checking account or your savings account? If you want to use bitcoin to replace credit cards, debit cards, checks, cash payments, etc, then yes it is important to get merchants to accept bitcoins.

On the other hand, if you treat bitcoins more like a savings account, then no, it does not matter if anybody ever accepts bitcoins in their shops. If you want to buy something, simply take your money out of savings, convert to whatever local currency happens to be in fashion and purchase your goods. In this use case, we should help build up the bitcoin exchange network so there is a quick and easy way to go in and out of bitcoins where ever you are. Bitcoin ATMs would be good for this.

A bitcoin debit card that does the exchange automatically at the time of purchase.
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Board Beginners & Help
Re: I have leverage within ARM -> Could they change the entire game?
by
notbrain
on 23/03/2013, 17:29:53 UTC
Quote

Quote
So in all practicality, the more specialized the mining gets, the less people can actually start mining, which is contrary to Bitcoin's design.
Even if the ASICs get really cheap, Bitcoin will adjust difficulty to compensate, in a sense, and you'll have to buy a lot of them again.

-kmeisthax

That reduced quote was what I was interested to see if the trend could be reversed... a design that was so efficient and widely available it was still possible to mine for the masses (as all you could do is multiply at the same efficiencies).

I was unaware they were simply parallel operations rather than solving them quicker. Still, it would be interesting to see if you can solve that operation quicker, rather than in parallel.

The faster you do them serially, the more heat you produce. So a smaller manufacturing process would be necessary, at ridiculous clock rates. Liquid cooling from the get-go. You'd still need to do parallel; but there will always be room for faster and more efficient.

I've always wondered about this - why hasn't some small group within AMD or Intel or ARM gotten together and done something like this on the side? (If only I had gone into the EE track instead of web dev...  Grin) I think the process is just too complicated and expensive. Until an alternative use of SHA-2 256 hashes could be conjured up, it's a small market and the market cap of those companies is such that it really doesn't interest them. Maybe at BTC = $1000+?

The Avalon ASICs use a reference spec for their chips, BFLs are custom (correct me if I'm wrong), so there are a few ways of tackling the problem. Would be interested to know what your contacts at ARM say about it and what a 35nm process (or smaller?) would cost--still a "beyond seed funding" project. Maybe make a board/HDK that could be re-purposed for other things but also support a series of SHA-2 256 chips that could be put to mining use as well. FPGA-on-steroids. IANAEE

For some reason (and fortunately for FPGA and GPU miners) there seems to be gross mismanagement at BFL (and convicted felons under employ) and slow-but-steady progress at Avalon (graduate students in China doing the best they can without a solid biz plan).
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Board Beginners & Help
Re: I have leverage within ARM -> Could they change the entire game?
by
notbrain
on 23/03/2013, 08:54:40 UTC
To answer one of your questions (maybe the most important, emphasis mine):

Quote
The way Bitcoin mining hardware works is to put a bunch of SHA hash units on a single chip so the miner can do parallel work. SHA hashes are designed to be computed quickly and with minimal resources, so they're naturally quite easy to run in parallel. So in other words the design of a Bitcoin ASIC miner isn't necessarily as expensive as other kinds of chips that you could make. The main problem I see is that the hardware is low-volume and thus expensive to make. Hardware is very much a volume business and Bitcoin hardware is extremely specific. Nobody else is going to want a chip that brute forces SHA-2.

Even if hardware costs for ASIC machines dropped, the hardware is still very much special-purpose. With CPU mining everybody with a computer could have a chance of mining some bitcoins. When GPU miners were released this got specialized down to computer with a decent graphics card. This later specialized down into having to have a computer with a very specific AMD card, then a computer with multiples of those, then having multiple computers altogether. Now, the average Bitcoin mining hardware resembles no computer one would actually build or want to use. So already mining has specialized to the point where it's a profession rather than a task everybody on the network carries out.

The problem isn't just the cost of obtaining ASIC hardware, it's the fact that it has to be obtained at all. Mining is a very computationally expensive operation with no other benefits than either going to a mining pool or solo-mining. Unless you have one of these mythical ASICs, or a very specific purpose-built GPU mining rig, you aren't going to make anything resembling a substantial amount of money. But you will be spending lots of electricity to do practically nothing.
So in all practicality, the more specialized the mining gets, the less people can actually start mining, which is contrary to Bitcoin's design.
Even if the ASICs get really cheap, Bitcoin will adjust difficulty to compensate, in a sense, and you'll have to buy a lot of them again.

-kmeisthax

60% down this page (at the time of this post anyway):

http://www.reddit.com/r/Bitcoin/comments/1ato45/because_rbitcoin_could_use_some_contrary_opinion/
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Board Bitcoin Discussion
Re: what happen in cyprus that led to their troubles?
by
notbrain
on 21/03/2013, 22:31:49 UTC