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421  Alternate cryptocurrencies / Altcoin Discussion / Re: What would happen if ASIC on Scrypt chain? on: September 05, 2013, 05:15:01 PM
In technical terms, what would happen if someone with a bunch of ASIC miners pushed their machines onto a Scrypt chain?

Obviously, an ASIC for SHA256 mining cannot do Scrypt mining.   

So you are asking what would happen if an ASIC that does Scrypt were invented?

It probably depends on how the ASICs are put into play.  If they are intended to be units for sale to the public, then it might be something that would benefit the leading Scrypt-based alt.  If the units are intended to be used in a 51% attack, then it is lights out for whatever Scyrpt-based alt(S) they target.
422  Bitcoin / Press / Re: 2013-09-05 - Follow The Bitcoins: How We Got Busted Buying Drugs On S on: September 05, 2013, 03:42:59 PM
-1 for using the "busted buying drugs" in the headline.   Silk Road's E-Wallet can be used without placing any orders whatsoever so there simply being proof that funds were sent to Silk Road doesn't prove anything other than that you sent funds to Silk Road.  The researcher was not able to conclude that the funds had been used to purchase drugs.

Additionally, there was no bust.  Nobody was arrested nor was there any law enforcement involvement whatsoever.   So the title was a shameless attempt to drum up page views.
423  Bitcoin / Press / 2013-09-05 - Follow The Bitcoins: How We Got Busted Buying Drugs On S on: September 05, 2013, 03:37:00 PM
Follow The Bitcoins: How We Got Busted Buying Drugs On Silk Road's Black Market
by Andy Greenberg

With the data from just 344 of their own transactions, they were able to label the owners of more than a million Bitcoin addresses. And by making just four deposits and seven withdrawals into accounts held on Silk Road, Meiklejohn says the researchers identified 295,435 addresses as belonging to that drug market.
Once our bitcoins had been mixed up with other users’ bitcoins in the Silk Road’s 40 bitcoin account, it became impossible to track them further. So even though Meiklejohn could show that we had deposited bitcoins into a Silk Road account, she couldn’t see that those bitcoins were later paid to a drug dealer
424  Economy / Goods / Re: 2005 Dodge Ram 1500 SLT - Low Miles! Chicago area on: September 05, 2013, 02:37:09 AM
BTCBitcoin gladly accepted!

Would be nice if you put that into the listing.  There is a marketing concept known as touchpoints, which says that a typical person becomes aware of a brand after experiencing a certain number of "touchpoints".   So a person might see "bitcoin" for the first time in a Craigslist ad, or it might be their fourth time.   Either way ... even that little addition helps to build the Bitcoin brand.

425  Bitcoin / Legal / Re: List of court cases, complaints, regulatory actions, etc. on: September 05, 2013, 01:53:43 AM
Advisory Opinion Request to U.S. Federal Election Committee (FEC)
August 13, 2013
Location: Washington, DC, USA

Abstract: A Political Action Committee solicits the FEC's opinion on varios aspects of Bitcoin being accepted for political campain contributions.

CAF wishes to accept Bitcoins as monetary and in-kind contributions from individuals and organizations otherwise lawfully able to contribute. CAF also intends to sell, spend, and directly contribute these Bitcoins. These actions are similar to those permitted by other Advisoiy Opinions, including BARTERPAC and Cogswell, and the FEC should have no concern in pennitting them. So CAF can ensure compliance with FECA and FEC regulations, CAF seeks guidance on valuing, retaining, selling, spending, and contributing Bitcoins received as contributions.

Advisory Opinion Request of Conservative Action Fund PAC
 - (via browser-based PDF viewer)

Feds could allow Bitcoin campaign donations
426  Bitcoin / Bitcoin Discussion / Re: Hardware device and protocol for seeding and verifying Provably Fair gaming on: September 04, 2013, 11:37:31 PM
I didnt understand the bitzino example You gave. did  You mean that the bitzino verification is from a neutral source and cant be manipulated?

Yup.  two pieces of information (the hash they provide and then after that the seed my client provides) are known by me before each play.  Then after the game is played the secret is revealed.   It can be proven later that their secret [Edit: deck] didn't change as it should hash to the same value they provided prior to the game play.  

So then for shuffling the deck bitZino uses a few functions, sha256, MersenneTwister19937, and FisherYatesShuffle.

The pseudocode for it is at the bottom of this post:

So after the game is over I can verify that the results of the deck shuffle were not altered during play.  From there each game can be verified.  Each type of game has a unique challenge.  Even though I know how the cards were shuffled for blackjack, for instance, I would still need to track each play -- where did I stand or bust on the hand, did I split, etc.    So that part of the verification isn't necessarily generic.  The player's actions would need to be fed to a verifier that knows the rules of the game.

This technology won't be something the casinos would be anxious to develop.  So this would be an innovation rising from the bottom-up, pulled forward because it protects the player from a dishonest operator (or even an operator that is unaware of a bug or other situation causing players to not be paid out properly).
427  Bitcoin / Development & Technical Discussion / Re: A mistery hidden in the Genesis Block on: September 03, 2013, 11:07:17 PM
Satoshi did one more joke on us before fading away. Tomorrow, I will tell.

A new mystery about Satoshi hidden in the Bitcoin block-chain

by Sergio Demian Lerner,  ‏@SDLerner on Twitter.
428  Economy / Gambling / Re: Any good bitcoin slots? on: September 03, 2013, 09:46:18 PM
I see has slots now:
429  Bitcoin / Press / Re: 2013-09-03 No Banking, No Bitcoin on: September 03, 2013, 09:36:35 PM

Individuals are today selling bitcoins by accepting cash deposits (e.g., using through their bank account.  Some of them might be considered money transmitters by FinCEN, I suppose.   Will banks need to scrutinize every account that sees a cash deposit to try to figure out if the transaction was for a digital currency trade?
430  Bitcoin / Bitcoin Discussion / Hardware device and protocol for seeding and verifying Provably Fair gaming on: September 03, 2013, 09:30:23 PM
The innovation referred to as "Provably fair" gaming is an innovation that has driven the growth of Bitcoin-based online wagering.

The problem with Provably fair is that actually verifying each hand (or round, play, etc.) from the service to ensure it was truly fair is something very difficult to do, today.   Each site has its own verification techniques and the ones that use a random number generator for the client seed includes challenges for verification as well.    If a provably fair site were to want to cheat, it could probably get away with it for a while before some techie was manually performing verification analysis and discovered that cheating had occurred.

This is not a bitcoin-gaming specific challenge.

I see the need for some protocol so that the game can get the client seed from a user-defined source not under the control by the gaming service (e.g., a browser plug-in, or external, consumer-owned, hardware device even), and then then after each play the plug-in or device would then verify that the results of the game were computed accurately.

There's probably only a handful of seed + verification approaches that would suffice for most provably fair gaming offered today.  I know that BitZino uses at least two, as their slots needed a different approach (factoradics) than their other games needed:

If this seed + verification protocol were created and plug-ins and/or devices were available, most Bitcoiners would only play the online gambling services where this protocol is offered.   Competitive forces would draw other services to use the protocol as well, possibly even into the casino industry where Bitcoin is not (yet) even used.

At a minimum, such a protocol would give Bitcoin-based online wagering added legitimacy since you would no longer need to trust that the provably fair service isn't cheating you.

Any thoughts on the topic?
431  Economy / Gambling / Re: What is the best bitcoin casino? on: September 03, 2013, 08:38:23 PM
One nice thing about SatoshiDICE is that it is easy to externally audit.  It grew so fast because it was among the best methods for wagering.   There is no way for me to know for sure if the wagers that appear in the chat (troll) box for wallet-based wagering sites are actual wagers or if they've been fabricated to make it look like lots of play is occurring.

BitZino had publicly shared some growth numbers some time ago and they were impressive:

But still even if all the Bitcoin-based online casino sites were doing as well, the aggregate amount is still a tiny fraction of all online wagering, which itself is a tiny fraction of casino gaming that occurs.

But not having the most popular wagering service doesn't mean it isn't either sustainable or useful.  But collectively the sites keep getting better (e.g., see's latest update), providing more value (e.g., the higher payout available with, available in a wider scale (e.g., Bitcoin Video Casino's mobile app for Android), more entertaining (e.g., ....  [your suggestions here]), etc.

432  Economy / Service Discussion / Re: Is FastCash4Bitcoins ever coming back? on: September 03, 2013, 08:00:28 PM
* With the exception of clients in the states of VA, NY, and CA at this time.

With most banks having branches in multiple states, are there restrictions from me opening a Wells Fargo account in, oh say, Nevada with my California address?  [Update: Or is it the address of the customer and not the location of the home branch that determines the state, as far as FastCash4Bitcoins is concerned?]
433  Alternate cryptocurrencies / Altcoin Discussion / Re: Ripple starts to conquer the world from China on: September 03, 2013, 07:39:28 PM
Ripple will never be open source.   It is just the bait to build the network.  Once it is large enough there is little reason to open source it.

Would the arrival of the day men with guns show up to confiscate hardware and shut it down increase the likelihood they release as open source?

Today Ripple is being used as the successor [Edit: a successor] to the "redeemable code" -- a debt-based voucher.  Releasing as open source is the only way for that network to continue [Edit: and existing XRPs held by anyone to continue to have value] after such an event.
434  Bitcoin / Bitcoin Discussion / Re: What if dev-team is compromised? on: September 03, 2013, 06:01:30 PM
Probably fork right, but what fork?

Well, let's take the unintentional change to the Bitcoin protocol that happened with the Bitcoin-Qt/bitcoind v0.8 release.

It caused a hard fork.

It took less than an hour for a sufficient amount of hashing capacity to conclude that coins mined using v0.8 blocks would become worthless and thus abandon it to go back to the protocol as it exists in v0.7 and prior (or use a v0.8 patch that fixed the incompatability).

That's because the economic majority favored the v0.7 side.  


And that's for a change that introduced that unwanted behavior had slipped through undiscovered.  An intentional change to alter the protocol would likely not go unnoticed as there are many eyes on every change to the source that is released:
435  Bitcoin / Technical Support / Re: Accidently sent bitcoin to first genesis block, any way to get it back? on: September 03, 2013, 07:17:46 AM
Bitcoin payments are irreversible, just hope that satoshi read this and send your coin back to you

Sending a large chunk there and claiming it was an accident would be a nice attempt to see if Satoshi is monitoring this forum!
436  Economy / Economics / Re: $-100,000 a day could some one explain how this runs on: September 02, 2013, 02:51:56 AM
There will always be seigniorage in the bitcoin world as the transaction fees will support the miners

But that isn't seigniorage.   That's simply fees paying the freight.
437  Economy / Speculation / Re: How to explain google trends vs BTC/USD ratio? on: September 01, 2013, 09:48:15 PM
How could we explain this spread between btc price and google trends.

The first time I learned about the word twerking I did what many others did and googled it.  

I've heard the word twerking hundreds of times since and occasionally have seen it occur but I've not once done a search on it in ever since.

So even though there is (presumably) more twerking occuring today than there was yesterday, the frequency of Google searching for twerking is down today versus yesterday.

So similarly, for Bitcoin, Google trends will spike when there is an influx of those who are becoming aware of bitcoin for the first time, but Google trends can drop even though the actual subject of the term is seeing an increase in activity.

But because financial speculation discussion (due to a rising exchange rate) is the primary reason people are learning of the term "bitcoin", the google trends will lag, not lead, the exchange rate.  Thus Google searching for the term bitcoin can drop significantly without the exchange rate falling as well.
438  Bitcoin / Technical Support / Re: Bitcoin QT Asking For Passphrase to Receive BTC on: August 31, 2013, 07:16:40 PM
I only thought "passphrase" was needed to send not receive BTC.

The logic for that is that you don't want a key added to your wallet without your explicit permission.
439  Economy / Economics / Re: Investment on: August 31, 2013, 05:25:16 PM
startıng a dıscussıon about general ınvestment.

Nope, you are starting a discussion about speculation.

ı can say for sure the prıce of sılver ıs goıng to double perhaps even trıple ın the next 12 months.

Ooohhh, me next!

I can say for sure the exchange rate for Bitcoin is going to double perhaps even triple in the next 12 months.

Of course, I can't really say that as I have no idea which way the Bitcoin exchange rate will head.  Just as you have no idea for silver.

What we do agree on is that fiat is going to be the loser over the long run.  It always has.

As far as bullion, what I would like to see is something like the DYM issue on Ripple become commonplace:
440  Bitcoin / Development & Technical Discussion / Re: Can I make direct transaction? on: August 31, 2013, 02:50:30 AM
I think I can make direct transfer, but I want to be sure.

Technically it will work.

The main problem in keeping your funds with a hosted (shared) E-Wallet (like how most pool accounts and exchange accounts operate as) is that when you request a withdraw, you are at that service's mercy.   If they have an empty hot wallet and need to transfer more funds from their cold wallet, you have no options other than to wait.

Instead, if you have the funds in your own wallet -- your transaction goes out immediately.

Additionally, let's say you were withdrawing to an address someone else gave you.  If that other person happens to use the same E-Wallet service, then that transaction may not get broadcast to the network (i.e., is handled internally within the wallet as an account-to-account transfer).   So you wouldn't have the blockchain as proof that you had sent payment.

So generally, you don't want to get in the habit of using your pool's withdraw feature as the method for sending bitcoins to other people.
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