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3341  Bitcoin / Bitcoin Discussion / Empty blocks and max block size on: July 21, 2015, 08:20:58 PM
Maybe someone can ask my questions.

So the empty blocks, or 1 transaction blocks, happen because a so small block will be propagated very fast through the nodes. Means 1 MB blocks might have a hard time reaching >50% and might get orphaned often.

When we now get 20MB blocks at one point, shouldnt the problem worsen then? I mean i can imagine the incentive to mine 1 transaction blocks will be even higher because the p2p speed wont keep up with that i think.

* Wont this be a problem?

Maybe a solution is to spread headers first, so some data identifying a found block. These headers are spread through all nodes in light time. The blocks follow later and can be verified. A one transaction block verified faster gets still orphaned when a 20 MB block gets verified later. That would ensure that empty blocks are not worth it.

There would need to be a timeout. Spreading faked headers wouldnt help because they would need to match a found block.

* Will this be a solution?

Then... when the spam happened, why did miners chose the huge transactions over many small ones with smaller fees? Shouldnt they chose many small transactions and shouldnt they be able to put more transactions with more fees into the block that way? Or only use the blocks that have the highest fee per satoshi. It shouldnt go after the fee per transaction because big transactions use much space and propagation time. It doesnt make so much sense to chose huge transactions that slow down a block and prevent more transactions being implemented only because they have a higher fee than small transactions. Though maybe its already handled that way.

* How is it handled and if not so why?

And what someone mentioned today... when we really want adoption we might need to drop the idea of a max block size completely and implement something like fee per output, since in fact each is its own transaction and should be treated like that. Since no post office allows you to bring 100 letters in a big box and send them out to 100 locations for 5 times the price for one letter. No, you either can chose the price of 5 times a letter to ship all letters to one location or you pay the price for 100 letters. I dont see a reason why bitcoin shouldnt handle it the same way.

* Is there a good reason to prefer transactions with many outputs?

Why? What happens when amazon decides to accept bitcoins? We might get flooded with transactions and might have filled our max blocks pretty fast. We would fail at the end maybe because a fork cant be made fast enough. So i think in order to allow adoption the max block size idea has to be dropped.

* What do you think about this potential adoption hinderness?
3342  Bitcoin / Electrum / Re: [ANNOUNCE] Electrum - Lightweight Bitcoin Client on: July 21, 2015, 03:59:06 PM
Ok, thats something important to know. So when the service dies, but you still have your brainwallet, you will be able to recover your funds? I mean without the service could you create the multisig addresses again at all? I would not know what to do just in the case.

Again: YES. How many times will I need to repeat that?
Yes, you can recover your wallet from its seed, at any time, even if the service dies. It is fully deterministic.

Competing services may not have that feature, but Electrum does have it.
I would certainly not propose that service in Electrum if it was not the case.

Quote
Is it your service?
The service is operated by TrustedCoin.
The fees paid by users are shared between Electrum Technologies and TrustedCoin.
The service was developed by both companies.

Quote
If not, why didnt you implement 2FA normally? Not being able to log into the account or send transactions without 2FA should have been sufficient i guess. Why not going that route? The service costs money for each transaction on top. Because of that i doubt many will use it.
what the F*** do you mean by 'normally'? If you mean 'without a remote server', then you can create a multisig wallet with Electrum, and sign transactions with two devices; it will not cost you anything. It even works with android.

OTOH, if you want the convenience of someone else hosting and securing a cosigning key for you, then someone has to pay for the server operation, and for the people developing the service. I do not want to run that kind of service on VC money (like BitGo does), because I want Electrum to remain independent, and because it does not work in the long run (what do you do once you run out of VC money?)



Well, i admit im a bit astonished how aggressive you get only because i made a wrong assumption. Yes, the wallet can be retrieved. Ok now?

And "normally"? 2FA is only a kind of second password whose source is held independent from the wallets host computer. So under a normal implementation i would understand that, with the current setup, a transaction only can be sent when the 2FA code is correct and the password too. Though when i think about the implementation i see why it might not work that way. If the wallet checks for a correct 2FA then the code has to be in the wallet, which makes it attackable. Encryption would only work with a static password too. So even when encrypting the 2FA with the norma password, at that point an attacker on the computer might be able to get in.

Letting a server check brings you back to point TrustedCoin.

Guess 2FA only makes sense for a website since its unlikely that it gets hacked. So only protecting things outside of the website.
3343  Bitcoin / Electrum / Re: [ANNOUNCE] Electrum - Lightweight Bitcoin Client on: July 21, 2015, 03:47:51 PM
... but you still have your brainwallet, you will be able to recover your funds?

brainwallet Huh??

You obviously still haven't read the instructions:


Maybe you should read the instructions first: https://electrum.orain.org/wiki/Two-factor_authentication



So a 2fa electrum wallet has no brainwallet. The normal one has and thats the source of the seed, right? I wonder why the multisig one doesnt have when the wiki states that the seed contains all three keys.



BTW:  less than 3 pennies per transactions for using the service is still much cheaper than buying a $120 Trezor...


Its huge. Especially for a service you get everywhere for free. :| Though thats a decision of the creators.
3344  Bitcoin / Bitcoin Discussion / Re: What BIG company will be next after BACKPAGE???? to support FULLY BITCOIN! on: July 21, 2015, 03:08:07 PM
amazon are not interested either , and with their huge volume how can 1MB limit sustain they TX per day?

I never thought about that. You surely are right. Having amazon including bitcoin might mean there will be a problem instantly. Guess a fixed blocksize cant be the solution when we go for big adaption.

We only would need a good reason for adoption and bitcoin would not show his best side when all the new users overload the miners.
3345  Other / Politics & Society / Re: McDonald’s Is Days From Opening Restaurant Run Entirely By Robots on: July 21, 2015, 02:26:37 PM
I think the idea goes that ...
artificial intelligence will eventually be so perfected that it would inevitably be able to manipulate all time and space  
so therefore it already is doing so behind the scenes in ways designed to hasten its onset

Only because we doesnt understand something doesnt mean that it somehow will evolve to something greater out of its own. I wrote programs that are named neural networks, which is mimicing the way human neurons (in the brain) work. I was disappointed about what is possible. They can only learn in the border you set them. They will not somehow break out of it.
3346  Economy / Gambling / Re: DaDice.com - Next Gen Social Gambling Dice Experience | Progressive Jackpot on: July 20, 2015, 09:34:48 AM
Dadice_Dev, you might check the bandwith usage of dadice. Even when switching to lite, so that nothing happens on the screen, i have a constant bandwith drain. I wanted to have it open to see when its near a half million bets and occassionally bet so i can see the numbers. But i had to close the tab because dadice is constantly drawing away my bandwith and i need to watch over it since i run it on my phones internet.
3347  Economy / Speculation / Re: Critical Levels - EW analysis on: July 19, 2015, 07:40:28 PM
I really doubt that. Price went up because bitcoiners believed in grexit. It dropped when a solution showed up and it will fall more since a solution is there now. I dont see it going up now.

Though im not a pro trade.

I believe that the price went up speculatively because of the grexit, not because people were preparing to use it in greece or even try but because people finally had an incentive to learn thoroughly about it and that was an opportunity for wide spread publicity in a new light. You cannot un-do the publicity that bitcoin achieved in that period of time and the effects of that are yet to fully unfold. It's been said that the deal is not a solution to the problem and smart people are realising that the grexit is for now only postponed. Do you think they will choose to buy bitcoin before or after their bank accounts are frozen?

I think it mostly were bitcoiner, so traders, that believed in an effect of grexit. I mean we knew it worked with cyprus already and it worked with grexit again. I dont think greeks had a lot to do with that. More speculators in bitcoin area.
3348  Bitcoin / Electrum / Re: [ANNOUNCE] Electrum - Lightweight Bitcoin Client on: July 19, 2015, 07:21:29 PM
Secure... but unspendable. Or how should one access coins on a multisignature address when one party cant give their key for releasing them? What is secure with that? Its like losing your wallet password and brainwallet too.

Please stop spreading FUD! Bitcoins stored in a 2FA wallet can be fully recovered from the seed, and spent.

How do we achieve this?
Here is the trick: The public key of the cosigner service is not needed, because it is derived deterministically from the seed.

You can test it by yourself, it works.


Ok, thats something important to know. So when the service dies, but you still have your brainwallet, you will be able to recover your funds? I mean without the service could you create the multisig addresses again at all? I would not know what to do just in the case.

Is it your service? If not, why didnt you implement 2FA normally? Not being able to log into the account or send transactions without 2FA should have been sufficient i guess. Why not going that route? The service costs money for each transaction on top. Because of that i doubt many will use it.
3349  Other / Meta / Re: Connecting to BCTalk.org on: July 19, 2015, 07:14:08 PM
I had not so much problems today but when i clicked on reply the forum loaded veeerrryy slow... Cheesy

Anyway... i started to go through the forum now with 2 tabs. While i leave the one tab i let the next side load and read the thread on the other, then repeating. It saves time i otherwise will lose.

So far 503 happens even without having accessed faster than 1 second.

Edit: Nice post id. When the last 2 would have spread into two ones then it would be perfect. Smiley
3350  Alternate cryptocurrencies / Service Announcements (Altcoins) / Re: Just-Dice.com : Invest in 1% House Edge Dice Game on: July 19, 2015, 06:27:18 PM
So when i use 1 clam as a start, its more near what i want, then i could bet 1 clam one time with a low chance. Chance to lose is huge. Though i could bet 0.1 clams 10 times or 0.01 clams 100 times. In these runs the chances are 10 time and 100 times lower. It doesnt matter that the chance to win is low, the profit of 1000 clams is never changed until the luck was exceptional or the clam is eaten away.

Is there a difference in these approaches?

OK, so let me check that I have it right:

You have 1 CLAM and want to get to 1000 CLAMs.

You can either do:

a) 1 * 1 CLAM bet at 1,000x or
b) 10 * 0.1 CLAM bet at 10,000x
c) 100 * 0.01 CLAM bet at 100,000x

If (a) wins, you end up with 1000 CLAMs. That happens with probability 0.00099

If any of (b) win, you end up with at least 1000 CLAMs. Maybe 2 or more win. You win at least once with probability 0.000989559.

If any of (c) win, you also end up with at least 1000 CLAMs. You win at least once with probability 0.000989515

So the probability of losing the whole CLAM goes up a little as you make more, smaller bets. But that is balanced by an increased chance of winning more than once.

Your expectation is the same in all 3 cases. You're risking 1 CLAM and so expect to lose 0.01 CLAMs (1%).

Here's the math for a, b, and c respectively:

>>> 1 - (1 - 0.99/1000) ** 1
0.00099

>>> 1 - (1 - 0.99/10000) ** 10
0.000989559

>>> 1 - (1 - 0.99/100000) ** 100
0.000989515

So there is a slightly higher chance of winning when betting the whole 1 clam in one run instead spreading bets over more runs with lower chance? I didnt await that either.

Thanks for your explaination. Smiley
3351  Economy / Services / Re: [ANN] SebastianJu - Free Legendary Escrow Service - Escrowed over 8150 BTC on: July 19, 2015, 05:38:31 PM
I used SebastianJu's escrow service, and he was brilliant. He helped me verifying the stuff that i wanted to buy.
Absolutely recommended.
Till next time Smiley

Thank you for your kind words. Smiley Let me know once you need my support again.
3352  Economy / Service Discussion / Re: cryptostocks.com gone now or whats the matter? on: July 19, 2015, 05:35:49 PM
Don't take things so personally. I use the royal you.

I don't know or care who he actually is, I just know that I know he "lost" a lot of coins in some other venture, so that there is no reason for anyone to continue doing business with him.

He is either too stupid or not trustworthy enough to hold coins or anything for anyone else, if I was invested I n something and they couldnt move their shares elsewhere I would have sold and got out what I could before i was left with nothing because it was obvious that this 2ould happen 3ventually.

Search for kumala and vircurex [or something] for more details, but don't expect any sort of resolution.

Ah ok. Smiley

I already tried to get in contact with kumala some months ago because of some important info about the scammer who scammed with labcoin. He could have helped the case but he did not react, regardless of all the ways i contacted him. I asked on the forum if someone know him and if i can get in contact. Nothing too. It seems to be impossible to get in contact months before already.

The only thing i learned was that others had problems with him too. For example issuers that wanted to take over the project and run it, because they would be able to provide a better service to their shareholders. The offer was good too. But kumala didnt react or was too d... ehm... unsmart to even get knowledge of the offer. Thats clearly not how a business has to be done.

And i would not have divs paid out there anymore since when something would have happened then no help would be there. And you never would know if the divs wouldnt have been paid out shortly before the website vanishes.

So luck in bad luck i guess.
3353  Economy / Service Discussion / Re: cryptostocks.com gone now or whats the matter? on: July 18, 2015, 08:43:40 PM
Not sure why anyone had anything to do with that site after the exchange run by the same bozo "lost" a zillion coins.

Everyone needs to stop being so gullible, there are people trying to take your money, it's a lot harder to get it back in bitcoin, so stop giving it to people who have already failed once or twenty times.

You raise a valid point indeed. Plenty of platforms claim to offer huge services and fail to delivery. Luckily for me, I had nothing of value stored there, but I can imagine some people probably had.

No one had anything of value there. All the numbers on that website were worthless when his exchange "lost" all those coins. People may have thought otherwise, and they may have allowed some people to cash out those worthless numbers, but if you still were expecting to get coins out of there this long after I'd have to say you were sorely mistaken and you should be questioning how you didn't see that coming.

Still, might be some bot traders having coins there or other people that waited for fill their order for shares. When the site remains down and kumala isnt paying out the coins then he most probably will get prosecuted. Bitcoiners arent so forgiving anymore nowadays.

Those coins have been gone since his exchange got "hacked." You are a fool if you trusted him after that, he didn't get prosecuted for that, he won't get prosecuted for this, and even if he does the coins are gone and unlikely to be returned.



Im not sure why you get personal. I already explained that i didnt trust him and secured the shares i had. My issuer knows the amount of shares i owned so i cant lose them since im in contact with him anyway. The $25 i still had on there to get some shares in case someone drops theirs are gone probably but thats nothing i would go doing a lawsuit.

I dont know what his first scam was but when he got many coins and no one came behind him then it looks like he isnt known in real life. Is that correct?
3354  Economy / Service Discussion / Re: cryptostocks.com gone now or whats the matter? on: July 18, 2015, 04:57:12 PM
Not sure why anyone had anything to do with that site after the exchange run by the same bozo "lost" a zillion coins.

Everyone needs to stop being so gullible, there are people trying to take your money, it's a lot harder to get it back in bitcoin, so stop giving it to people who have already failed once or twenty times.

You raise a valid point indeed. Plenty of platforms claim to offer huge services and fail to delivery. Luckily for me, I had nothing of value stored there, but I can imagine some people probably had.

No one had anything of value there. All the numbers on that website were worthless when his exchange "lost" all those coins. People may have thought otherwise, and they may have allowed some people to cash out those worthless numbers, but if you still were expecting to get coins out of there this long after I'd have to say you were sorely mistaken and you should be questioning how you didn't see that coming.

Still, might be some bot traders having coins there or other people that waited for fill their order for shares. When the site remains down and kumala isnt paying out the coins then he most probably will get prosecuted. Bitcoiners arent so forgiving anymore nowadays.
3355  Economy / Service Discussion / Re: cryptostocks.com gone now or whats the matter? on: July 18, 2015, 12:29:08 PM
Not sure why anyone had anything to do with that site after the exchange run by the same bozo "lost" a zillion coins.

Everyone needs to stop being so gullible, there are people trying to take your money, it's a lot harder to get it back in bitcoin, so stop giving it to people who have already failed once or twenty times.

Thats correct. Though i took the risk because a certain security was only traded there. And since kumala claimed the issuer would have always a list showing how many shares someone has, i decided that i can buy shares, put them into vault and be safe. My issuer would know how many shares i own even when the exchange vanishes. For me that is true but for those that didnt enable that option its not true.

Well... i guess there would still be some user coins lying around on cryptostocks. I wonder what will happen with them. I mean is kumala known in real life?
3356  Economy / Service Discussion / Re: cryptostocks.com gone now or whats the matter? on: July 18, 2015, 11:45:18 AM
And i dont want to start with their stupid 2FA. If the email of an account is hacked then 2FA is sat back. And you can circumvent 2FA with some codes, lowering security very much. The only safe thing to do is putting shares into vault, then an attacker could not take it.

Though kumala abandoned his site since ages already, no support anymore, even for important things.

Issuer now will have problems.
3357  Economy / Service Discussion / cryptostocks.com gone now or whats the matter? on: July 18, 2015, 10:50:34 AM
Anyone knows whats the thing with cryptostocks.com? I only get "We're sorry, but something went wrong." when i access the site.

Kumala, the owner did not care about the site since ages but now it stopped working completely?
3358  Local / Anfänger und Hilfe / Re: Keine Blockquelle Verfügbar - Hilfe on: July 17, 2015, 06:55:23 PM
Vielleicht ist einfach deine Firewall zu und blockiert die Aktivität des Clients? Mach sie mal testweise aus und schau ob es geht. Nicht vergessen sie wieder zu aktivieren. Falls es daran lagt musst du halt dafür sorgen dass das Wallet durch die Firewall kommt.
3359  Local / Anfänger und Hilfe / Re: Geld verschleiern bzw. Bitcoins waschen ? on: July 17, 2015, 06:53:44 PM
ich glaube die Geschichte mit der "Bachelorarbeit" ist "Facke"  Grin

*lol* Das ist was ich auch gedacht habe. Es ist schwer vorstellbar dass ein Student, der es bis zum Bachelor geschafft hat, den Post geschrieben hat. Roll Eyes
3360  Other / Beginners & Help / Re: Bought an Account but seller wants me to send him additional 0.015 - See details on: July 17, 2015, 04:39:06 PM
What a beautiful day and someone wants to destroy it.

I bought today an account from https://bitcointalk.org/index.php?action=profile;u=426160 (now it is mine)
Seller skype: vaporswc

I have signed message:

-----BEGIN BITCOIN SIGNED MESSAGE-----
I am Prasmatic and this account is sold to SmartIphone and today is 17.07.2015
-----BEGIN SIGNATURE-----
1MVnSfhxHCbMvcwrzSiVMTrLMeJ65dFXoi
H30nnf9Ghw9gmGMFlldC7koBNFeePhOaa+C7J7Qm/cG8WNzNh3FMxXUy4XuwcaLTDUwEOkpcWtHntX0xnlghmo8=
-----END BITCOIN SIGNED MESSAGE-----

To verify click here : https://goo.gl/pHYuQl

Tx id: https://blockchain.info/tx/2c1a1e3060d81eaa1d9fa8dbc4bc2dc37e00af5f0459056cb10d73a9380b9b19

I have all logs in skype which i can send to admin or moderator

He is saying: "pay 0.015 or im gonna get it back"

My question is: since he signed a message for me that it is sold to me am i safe?  i know that the signed message is for this purpose.


IF you have the control over the account now then you shouldn't worry since you have the signed message as proof that the account is sold. Only mistake you did is you publicly posted the signed message for the account, some users can claim the account and use the signed message to get it

Thats not possible since the buyers name is mentioned in the message at least.

What a beautiful day and someone wants to destroy it.

I bought today an account from https://bitcointalk.org/index.php?action=profile;u=426160 (now it is mine)
Seller skype: vaporswc

I have signed message:

-----BEGIN BITCOIN SIGNED MESSAGE-----
I am Prasmatic and this account is sold to SmartIphone and today is 17.07.2015
-----BEGIN SIGNATURE-----
1MVnSfhxHCbMvcwrzSiVMTrLMeJ65dFXoi
H30nnf9Ghw9gmGMFlldC7koBNFeePhOaa+C7J7Qm/cG8WNzNh3FMxXUy4XuwcaLTDUwEOkpcWtHntX0xnlghmo8=
-----END BITCOIN SIGNED MESSAGE-----

To verify click here : https://goo.gl/pHYuQl

Tx id: https://blockchain.info/tx/2c1a1e3060d81eaa1d9fa8dbc4bc2dc37e00af5f0459056cb10d73a9380b9b19

I have all logs in skype which i can send to admin or moderator

He is saying: "pay 0.015 or im gonna get it back"

My question is: since he signed a message for me that it is sold to me am i safe?  i know that the signed message is for this purpose.


Why didnt you use the escrow address i sent you? You took a risk and i dont see why you sent him directly when you already had a escrow deal set up. Did he say you shouldnt use escrow?

Anyway... if you control the account and you can show that you bought it, then you should be fine.

Normally you should not post bought accounts publicly. If your account would have green trust then you would have the risk of being rated negative because you did not earn that trust.
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