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1901  Bitcoin / Bitcoin Technical Support / Re: Best laptop to run a node? on: November 10, 2017, 04:13:49 PM
Qualcomm released a server chip that not only performs very well, but does not have something like ME (at least as far as my reading has led me to believe). Hopefully they did not build their own version of ME into it. However, it is also quite costly:
https://www.qualcomm.com/news/releases/2017/11/08/qualcomm-datacenter-technologies-announces-commercial-shipment-qualcomm

Not a laptop chip obviously, but I figured it might be worth mentioning given that the discussion revolves about ME and similar.

I wouldn't trust this for a second. Qualcomm are direct partners with Microsoft. Deals with NSA are too juicy to bypass anymore. I would need to see someone qualified from the FSF to inspect these chips, and if they list it there then I would give it some legitimacy, which I doubt will happen.

For now an old core2duo with libreboot seems like the only solid alternative to spywarefest. I may try to run a node there for myself and see how it goes. I would only use to broadcast transactions so I guess it could do the job even if it will be annoying waiting an extra time for the blockchain to be validated but at least you have a peace of mind.

Note that we don't really know about AMD's as much but it is reasonable to be concerned about modern AMD's too.
1902  Bitcoin / Bitcoin Discussion / Re: Guy spent $85000 on B2X futures on: November 09, 2017, 06:53:14 PM
He claims that this was only a fairly small amount of his money, so I suppose this guy must be extremely rich or a liar.  If he's a liar, it's possible that he didn't invest that much in the first place.  If he's extremely rich, it doesn't matter too much because the number means less to him than it does to us.
This is crazy. One of the worst gambles I've seen. Another lesson for hardforkers... never bet big on a hardfork unless it has 99% consensus.
If you already perceive it to have 99% consensus, it wouldn't be betting big.  You might be betting a lot of money, but the risk would be negligible and the amount of money that you would gain for being correct would also be negligible.

In reality, it's very hard to measure consensus.  Where this guy went wrong is trying to measure it rather than just being part of consensus.

He looks really young, there's a pic of him on there and he looks to be on his 20's, so I don't see how he is rich, unless his parents are really rich and he is gambling with his parent's moneys, for 99% of 20 year olds $85000 is a lot of money.

It was always a bad bet. If 2x won I would be done with bitcoin and most people would too. If an contentious hard work wins you would be holding a shitcoin so if you made some $ gains better dump it quickly, fortunately they didn't get away with it once again. Everytime people lose money on these fork-bets bitcoin show's his strength by making real BTC holders richer and contentious-hardfork supporters poorer.
1903  Bitcoin / Bitcoin Technical Support / Re: Best laptop to run a node? on: November 09, 2017, 06:36:06 PM
Anything with a new i7 processor and SSD is a must.

You will no need anything else other than these.
Even the RAM may be 4 GB or GPU may be SoC one.

We all know the more modern your components are the faster your full node experience will be, but OP is showing concerns in terms of privacy, and if you want to be sure you are safe against ME's bullshit, unfortunately, you have to resort to really old CPU's dating as back as 2008, because ME has not been fully reverse enginereed, and chances are it is impossible to get rid of ME completely. So if you want to be 100% sure of having a computer that's free from these backdoors, you must go the old CPU+Libreboot route, and even if you keep your coins on cold storage, when you relay your transaction into the network your node is still exposed to these backdoors unless you set it in a proper librebooted machine. Coreboot is an option too, but doesn't get rid of the entire thing.
1904  Bitcoin / Bitcoin Discussion / Guy spent $85000 on B2X futures on: November 09, 2017, 05:22:27 PM
https://medium.com/@bartjellema/why-i-just-bought-90-b2x-bitcoin-segwit2x-futures-f94d0ee13eb9

Holy hell did anyone see this?

Quote
I just spent about $85.000 on buying B2X futures. This just means that once SegWit2x goes live, I’ll already have 90 coins. But why did I spent nearly a $1000/coin for coins that everyone will get for “free”?

This is crazy. One of the worst gambles I've seen. Another lesson for hardforkers... never bet big on a hardfork unless it has 99% consensus. It's a shame we will not see Roger Ver lose his BTC's. Also notice how he and a lot of other guys didn't accept the big bets proposed by Gmaxwell, Adam Back and Trace Mayer of up to 25000 BTC. Adam was looking for ridiculously low ratios lately to do OTC trading and no one accepted. I think a lot of people have been aware of this happening a long time before they cancelled. We saw massive inside trading yesterday.
1905  Alternate cryptocurrencies / Altcoin Discussion / Re: Problems facing crypto, taxes, anon, etc... on: November 09, 2017, 04:25:45 PM
What major problems are crypto and btc facing in the future? One I can think of is taxes. Will there be offshore tax havens set up for people to exchange their btc, eth and other crypto into fiat without paying taxes? It's not really decentralized if you have to pay the government a cut of it.  What if you are given btc, is that still taxed?

How to spend your crypto? Will you wait until retailers accept your crypto of choice? There are options like tenx card, but what are the tax implications of using that? Even if retailers accept crypto, say monero to buy groceries or pay your rent, will you not still have to pay taxes on that?

Another problem could be power outages, internet disruption. What if there is a power outage for a year or two? What if the internet is disrupted globally?

The idea is to never go out of Bitcoin. Obtain bitcoins by offering services and products, and buy services and products in exachange of bitcoins. If you have noticed, the circle is closed now and there is no need for fiat.

If you need to go fiat, don't expect to not get into trouble. If you want fiat pay your taxes and sleep well, there's no way to bypass this. Look at Paradise Paper et al, it will always leak so it's stupid, just pay the damn taxes and deal with it, or don't ever sell.
1906  Economy / Economics / Re: Would European ATM industry benefit the crypto world? on: November 09, 2017, 03:05:57 PM
Don't you think once most of Europe is covered but such service providers, that the popularity would rise, as well as the trust and even demand? I think that having a "thing from the internet" manifest itself in your everyday life in the form of ATM would have a huge impact to the masses, who are yet to know what cryptocurrencies are or simply to the sceptics.
E.G.

https://medium.com/@coinstaker/ever-heard-of-bitcoin-atms-here-is-what-you-need-to-know-254d2d72cfb2

In Switzerland there are tons of Bitcoin ATM's. The train stations all have Bitcoin ATM's and they aren't the cheap, stupid looking ones, they look robust and solid. There are some machines that look like toys but the ones i've seen are the real deal. I've never used them, but in any case think about them as passive advertisement of Bitcoin, since it says "Bitcoin" on it.
1907  Bitcoin / Bitcoin Discussion / Roger Ver dumping BTC to twist the narrative on: November 08, 2017, 06:37:42 PM
Roger Ver et al are obviously unloading big amounts of BTC to stop the pump which is exposing that no one wanted bigger blocks. As soon as the segwit2x cancellation hit the news, we saw a big pump. Now I would bet money on Roger Ver dumping big amounts to try to hide the fact that the market has reacted positively to the news of no hardfork. I hope he unloads it all and sticks to BCrash. I can picture Roger rage-quitting Mike Hearn style right now.
1908  Bitcoin / Bitcoin Discussion / Re: Segwit2x is dead, long live Bitcoin on: November 08, 2017, 05:32:59 PM
Fantastic news to end the year. Let this explosive price run be a testament for future hard forkers: The market doesn't want no fucking drama, they want certainty. Once certainty was re-established, a long green candle has been delivered, right on time for x-mas.

It looks like they pushed it until the end. Im sure they knew they would cancel it a couple of days ago and already low key bought the dip to deliver the news now. Well, at least they did (were forced to) do the right thing.
1909  Other / Meta / Re: Why after 2 months nobody answer me to my "Recovering hacked accounts" request ? on: November 08, 2017, 05:05:56 PM
Better you sign a new message from that address to make clear you are the same person who made that request two months ago. Also Include profile link and the link where we can see the address posted by you.

Please read that thread again "Recovering hacked accounts or accounts with lost passwords" and understand what is required and try not skip even a single detail that is asked by them.

this is the second signed message:

-----BEGIN BITCOIN SIGNED MESSAGE-----
This is the second request ro recover my account brizio71
that has been hacked on August 20/21.
Please reset the email to brizio71@gmail.com.
I made the first request on 28 August 2017 !
The current date is 27 Octore 2017.
-----BEGIN SIGNATURE-----
176Ui2JZjN6MbSuFjN3y1QiZnqC8r6CVBm
IJROOpcIIZH5zcJmMt6+GmyocK3UZh/dPG6UbnXRbfD8ImBVNLx6sM3Zb+pi7RwE8ulK+iddu34JElpyAAnxFHw=
-----END BITCOIN SIGNED MESSAGE-----

the profile of my original account hacked is :

https://bitcointalk.org/index.php?action=profile;u=388874

someone get on my account change the associated email, post some message and the never use this account anymore !!!

then if you look on post history of brizio71 you will find my address on post:

https://bitcointalk.org/index.php?topic=920465.msg10156865#msg10156865



This seems to be enough cryptographic proof for you to recover your account. Keep trying and you should get it back. Have you tried PM'ing Theymos about this? You waited enough with 2 months of no reply with Cyrus. This has never happened to me, but if it happened to me and I got no reply after 2 months after having delivered the cryptographic proof asked by the mods I would be pretty annoyed. It's impossible that there are 2 months of queue of people's hacked accounts, verifying messages takes 1 minute. Let's just hope he didn't see it and keep trying, what else can you do.
1910  Bitcoin / Development & Technical Discussion / Re: brain wallets - good or bad on: November 08, 2017, 05:00:49 PM
i would have thought they were a great idea because there is nothing to be destroyed,
Only your brain.

once you choose a system for creating your password you are sorted.
If for example you were interested in astronomy you could combine planets in our solar system with their position from the sun,
of you could combine the birth dates of you family starting with the oldest down to the youngest.

That's a good example of bad passphrase. Anyone who knows about your passion can easily crack your wallets.


ok, but "they" have to firstly know you, know your interests, try all combinations of all the interests you have, know you have Bitcoin and know they are in a brain wallet.
what about picking something you absolutely hate, or something male orientated if you are a female, it just needs to be something specific that you will remember.

It just doesn't make sense from a cryptographical point of view to carry all of your coins in a single seed, which is why you should avoid brainwallets, and electrum wallets, or anything that could generate all of your keys from a single seed of any kind for that matter.

If your keys are spread across different separated private keys, you are lowering your chances of an attack by a lot. So don't use these for anything else than spare change or temporal re-allocation of btc.
1911  Bitcoin / Bitcoin Technical Support / Re: Generating a fresh non HD wallet in the newer versions of Core on: November 07, 2017, 05:22:57 PM
I said that I know Bitcoin Core's HD wallet cannot be generated by a single seed, im just asking if it adds any possible exploits. So you are saying that the new format has 0 disadvantages or attack vectors compared to the old format?
Yes.

And why would you disable the ability to create non-HD wallets in 0.16?
Because continuing to support HD wallets hinders future changes and limits what we can do with the wallet. Part of that is due to some poor design choices on our side when implementing HD wallets, but regardless, continuing to allow for non-HD wallets prevents us from making certain future changes or requires a lot of hacks to make those changes work.

Ok then, if there are no downsides and only benefits I guess I will get to work and move my coins for once, but I will do it after the segwit2x hardfork so I kill 2 birds with one stone.

And btw, does "no HD support" means that if you try to load an old format wallet.dat, your coins will not show up?

There's people often finding very old HD wallets from the -qt era, example:

https://bitcointalk.org/index.php?topic=2364176.0

If this guy came here with an old wallet after 0.16 is released, he would download it then try to open it and he would have problems if legacy format is not supported.
1912  Bitcoin / Bitcoin Technical Support / Re: Running out of space on: November 07, 2017, 05:09:38 PM
You can't do that.

The best you can probably do is to set your datadir to be the external drive and then have symlinks for all of the files in the blocks folder that link back to the internal drive. However you will need to move the chainstate folder and basically all other files in the datadir to the external drive.

It would be better for you to just use the external drive for the datadir rather than trying to do some split drive thing.

What do you call "datadir"? the entiretiy of the "Bitcoin" folder? the "blocks" folder + "chainstate" folder?

So anyway from what I understood, it is a bad practice to try to divide the blockchain in 2 with symlinks or otherwise and I should keep everything inside a single HDD?

But this implies that the blockchain will grow slow enough to not be bigger than the current biggest HDD's? For example a "Seagate Archive HDD 8TB SATA3" would serve me for years... assuming that Bitcoin manages to remain Bitcoin at 1MB blocksize.
1913  Bitcoin / Bitcoin Technical Support / Running out of space on: November 07, 2017, 04:50:00 PM
Suppose my node is running out of HDD space on my computer, and I have an USB external HDD that I could use to continue downloading the blockchain. How do I do this?

What I mean is, if the latest blk file is "blk01051.dat", how do I point Bitcoin Core to keep downloading from there in the new HDD so I can keep the whole blockchain? (I don't want to use pruned mode)
1914  Bitcoin / Bitcoin Discussion / Re: B2X is real Bitcoin? on: November 07, 2017, 04:28:33 PM
BTC divided to BTC and BCC, and will be divided to BTG and B2X.

1. B2X will become real bitcoin?
2. More BT* will appear  in future?
How did you able to calculate such thing? Bitcoin would be always the real bitcoin no matter what and those coins being created on forks are just another altcoin in the market. Try to look at on BCH what happen? It didnt really get the same support just like we saw on bitcoin itself therefore theres no point on comparing it in to those altcoins.

The market will decide ultimately. And futures are not looking good for Segwit2x:

https://coinmarketcap.com/currencies/segwit2x/


Oh and there's no such as "free money". When you think you are receiving free money, you are not considering that if the network wasn't attacked by contentions hardforkers, the price would be much higher than it is now, so ultimately you don't gain anything, other than wasting your time to get some extra BTC by dumping the fork.
1915  Bitcoin / Bitcoin Technical Support / Re: Generating a fresh non HD wallet in the newer versions of Core on: November 07, 2017, 03:37:29 PM
....But now with all the fork nonsense I will be forced to move my coins into another wallet...

Why is that?

Well, everytime that there is a hardfork, you are forced to move your coins into a new wallet before accessing the coins on the other fork, in order to not have any problems of replay attacks. It is always recommended to not having matching addresses before you send coins to an exchange. I wish I wouldn't need to deal with any of this but can you do.



I don't like HD wallets in general, I like the old approach better. Im not sure how exactly this HD wallet works, I just like the original format. As far as I know, there is no seed, so the wallet cannot be generated unless you own the wallet.dat file which is good, I wouldn't trust a wallet that can be generated with a single seed containing all of your private keys.
Clearly you don't understand how HD wallets work. Bitcoin Core does not use a seed phrase that you are probably thinking of. Seed phrases are not required for an HD wallet; you still have to own and hold the wallet.dat file. The only thing that changes is how the private keys are generated; everything else about how they are stored and the backup and security measures that you must take still exist with Bitcoin Core's HD wallets. It still uses a HD wallet and the private keys are still stored in the exact same format as before.

What are the pros and cons of the new HD enabled wallet.dat compared to the original format? I've had the same wallet.dat since Bitcoin-qt in 2013-ish and I never had any problems with it. But now with all the fork nonsense I will be forced to move my coins into another wallet, and when I tried to generate a new wallet in the new versions of Core it was HD-enabled.
With an HD wallet, you can restore any backup of your wallet.dat and still be able to access your Bitcoin whereas with non-HD wallets older backups may no longer be valid (they don't contain later private keys). However if your wallet.dat file is stolen, then all of your private keys for that wallet.dat file (including those that have not yet been generated used) are revealed. But you should be using a new wallet.dat file anyways if yours is ever stolen, regardless of HD or not.

To disable HD wallets, you must start Bitcoin Core with the -usehd=0 option. However this option and the ability to create a non-HD wallet has been removed for Bitcoin Core 0.16.


I said that I know Bitcoin Core's HD wallet cannot be generated by a single seed, im just asking if it adds any possible exploits. So you are saying that the new format has 0 disadvantages or attack vectors compared to the old format?

And why would you disable the ability to create non-HD wallets in 0.16?
1916  Alternate cryptocurrencies / Altcoin Discussion / Re: Ethereum Hacked - AGAIN! on: November 07, 2017, 02:19:57 PM
It seems they can't go more than a few months without getting hacked!


https://paritytech.io/blog/security-alert.html

Security Alert
7 November 2017
Severity: Critical

Product affected: Parity Wallet (multi-sig wallets)

Summary: A vulnerability in the Parity Wallet library contract of the standard multi-sig contract has been found.


 Shocked Shocked Shocked

Parity was always weak. It looks great, it syncs fast, but it's not safe. I warned about how Parity for Bitcoin was a mistake too when a lot of people were exciting.

Ethereum is such a clusterfuck. The official client can't properly sync a full node anymore due the massive bloat on the blockchain, you can't properly download it.

Then if you want to use Parity, you are not getting the full blockchain and you aren't safe anyway as we can see with all these exploits. Full turin complete was always a mistake and we will see ETH have these problems forever.
1917  Bitcoin / Bitcoin Technical Support / Re: Best laptop to run a node? on: November 07, 2017, 01:29:20 AM
If you want something that's composed of only free open source software including the bios, I don't know many other options than the Libreboot, the latest being the Libreboot T400:

https://minifree.org/product-category/laptops/

It comes with Trisquel installed. It's old hardware, because as you said, you simply can't expect any privacy from modern hardware, unfortunately. Another reason to not make nodes more resource consuming.

If you are in the US, you also got this option, which is very similar:

https://shop.libiquity.com/product/taurinus-x200

Purism is a good initiative but you are trusting their reverse-engineering is effective, so not ideal.
1918  Bitcoin / Bitcoin Technical Support / Generating a fresh non HD wallet in the newer versions of Core on: November 06, 2017, 06:53:18 PM
If I wanted to generate an empty fresh non-HD wallet using Bitcoin 0.15.0.1, how would I go about it? or is this not possible?

I don't like HD wallets in general, I like the old approach better. Im not sure how exactly this HD wallet works, I just like the original format. As far as I know, there is no seed, so the wallet cannot be generated unless you own the wallet.dat file which is good, I wouldn't trust a wallet that can be generated with a single seed containing all of your private keys.

What are the pros and cons of the new HD enabled wallet.dat compared to the original format? I've had the same wallet.dat since Bitcoin-qt in 2013-ish and I never had any problems with it. But now with all the fork nonsense I will be forced to move my coins into another wallet, and when I tried to generate a new wallet in the new versions of Core it was HD-enabled.
1919  Bitcoin / Bitcoin Technical Support / Re: Bitcoin core database gone after error no more free disk space on: November 06, 2017, 05:36:32 PM
Step 1.  DO NOT PANIC
If you panic, you are likely to start performing actions without understanding the associated risks, and you could make things much worse. It is better to do nothing at all, than to do something that will make it worse.  If the bitcoins are recoverable, then panic will not help.  If the bitcoins are not recoverable, then panic will not help.

Step 2.  Shut down the computer, and leave it turned off.
Things can't get worse if the computer is off.  Software won't be able to manipulate the data on your hard drive and any damage to the hard drive won't get worse.

The next steps will depend on the type of laptop, and how comfortable you are with various software and hardware tools.

Effectively, your priority will be to access the hard drive in a way that will minimize the amount of activity (reading or writing) on the drive and recover a file named "wallet.dat".  There is a VERY GOOD chance that the file is still somewhere on that drive, and that it can still be recovered if you haven't made things worse yet.

If you are capable of doing so, I would suggest removing the hard drive from the computer.  Then purchase hardware for accessing an internal drive as an external drive, such as the following:
https://www.newegg.com/Product/Product.aspx?Item=N82E16812196455

Connect the drive to a working computer and look in the Bitcoin Data Directory for the operating system that your laptop was using.  If you can't find the wallet.dat file there, then use some undelete software or software designed to search a drive for lost data to search for deleted or lost files named wallet.dat.  Id you still can't find it, then there is software that will search an entire hard drive for any and all private keys regardless of the filename.

Thanks for your replies and help so far. Very much appreciated!

So the most important thing for now as I understand it is to take out the hard drive and examine it from another computer with that cable and search for the wallet.dat file on it.

I will order a cable like that as soon as possible and leave the laptop off. I'm not touching it, I'm afraid to do anything wrong on it now.

Quote from: Spendulus
Is that all under windows?

If so you may find a ".lost" directory, or find these files in the trash.

However, I concur with Hamilton's suggestion to turn the machine off and examine the disk from another machine.

No rush on this.

Right?

So do you have a 2nd available computer?

Yes, it all happened under windows 7. I used that laptop mainly only for the bitcoin core wallet and as an eventual back up laptop so I have indeed a 2nd laptop where I can work from.

So I should look for the .lost directory or files in the trash while I have connected my hard drive from another computer or from the laptop where the wallet is on?



It is generally weird that you would have files deleted because you ran out of space. I have never ran out of space on a windows 7 machine so im not sure if that is the normal behavior (the OS is forced to free some space and deletes files, which happen to be the entire bitcoin core folder? doesn't make much sense).

In any case, get a second hard drive and boot from there, until you don't have a second hard drive don't connect it again to minimize chances of disk failure (maybe your disk is about to die).

If you are booting from windows to access the disk, use Recuva which is a free tool to recover lost files, do a deep search, and look for wallet.dat. If the files are recent and you closed the computer short after, you may be able to get them back, so look for a green light next to the wallet.dat file (if the files got rewritten you are out of luck with such a simple tool, you may still try if you get an orange light).



So find the wallet.dat and tell the program to save it on your new HDD.

For now that is what I would do.

1920  Alternate cryptocurrencies / Speculation (Altcoins) / Re: B2X Futures on: November 06, 2017, 04:38:10 PM
I'll just leave this here... Interesting read on the topic:

https://medium.com/@bartjellema/why-i-just-bought-90-b2x-bitcoin-segwit2x-futures-f94d0ee13eb9


Key points being:
Another major difference is the lack of strong replay protection. While this sounds desirable, the reason why the SegWit2X team doesn’t want to implement this is clear from what Mike from BitGo had to say about it:

”Replay protection”, as you call it, splits the chain. It simply doesn’t
make sense- you’d suddenly be breaking 10+million SPV clients that
otherwise work just fine. It is a goal of segwit2x to help avoid this.
Today, we’re on course to deploy segwit2x with a vast majority of miners
still signaling for it. On top of that, 99.94% of nodes & SPV clients will
automatically follow that longest chain (segwit2x).


I picked up some B2X futures on the very real possibility of it taking over the chain. This fork is different than Bcash or Bgold.

Mike Belsher is a bullshit artist. The reason they don't want to add replay protection is the fact that they don't want the market to speak, which is the only way to fairly assess forks. They want to take over the chain so they don't have to be exposed as a valueless shitcoin.

Shitcoin2x can't win, because if it wins Bitcoin is dead, since it can be changed when a couple corporations and bribed miners get along in a backroom deal to change the protocol. The good news is, it will not win, and supporters will be judged by history.
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