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161  Other / Beginners & Help / Re: [Guide] Handling splits: UASFs, BIP148, etc. on: July 18, 2017, 07:40:26 PM
I added a list of OK wallets.

Although you should technically be able to get your keys from all of them, some of them might require a third-party tool, and I wanted to indicate those with italics. But I only briefly searched through their source code. Can someone who actually uses them confirm that there is a backup/export option for Electrum on mobile, Mycelium, Copay, Bitcoin Wallet for Android, breadwallet, ArcBit on desktop, and Bither on desktop; and that there is not a backup/export option for Bither on mobile, ArcBit on mobile, and coin.space?
162  Other / Beginners & Help / Re: [Guide] Handling splits: UASFs, BIP148, etc. on: July 17, 2017, 10:47:50 PM
Can you please elaborate? It feels so weird to see in Bitcoin Core:
Warning: Unknown block versions being mined! It's possible unknown rules are in effect

One way to deploy softforks is specified in BIP9. This is how SegWit was supposed to be activated, but it requires miner cooperation. Miners are now doing a different weird thing called BIP91 which abuses the BIP9 mechanism in order to signal amongst themselves support for later hard-enforcing SegWit-BIP9 signalling.

So your Bitcoin Core thinks that sometime after it was released, a new softfork was released and is now about to be activated. You then might want to upgrade in order to continue verifying 100% of the consensus rules. But that's not actually what's happening: what's actually happening is that miners are rudely talking to each other over this sensitive channel without concern for the side-effects you're seeing. There is no softfork-enabled software that you could upgrade to.

Is this signaling part of the forking process?

There are several possible forks/splits on or around Aug 1. (Most of which will not actually happen/succeed.) This is a side-effect of one of them.
163  Other / Beginners & Help / Re: [Guide] Handling splits: UASFs, BIP148, etc. on: July 17, 2017, 10:31:15 PM
My Bitcoin Core wallet 0.14.2 received today a message:

Warning: Unknown block versions being mined! It's possible unknown rules are in effect


Should I be worried about this?

No, you can ignore that in this case. It's caused by BIP91 signalling.
164  Other / Beginners & Help / Re: [Guide] Handling splits: UASFs, BIP148, etc. on: July 17, 2017, 05:28:37 AM
Also plugged in the correct passphrase, and it returned the original error which is weirder. - Method not found (code -32601)

I think that something in your password is confusing the command parser. Maybe take the issue to #bitcoin-core-dev on IRC or github.
165  Other / Beginners & Help / Re: [Guide] Handling splits: UASFs, BIP148, etc. on: July 17, 2017, 04:18:16 AM
I got a error:
Method not found (code -32601)

That means that it doesn't recognize "walletpassphrase" as a valid command. Maybe you misspelled it.
166  Economy / Speculation / Re: When will bitcoin hit the lowest? 1)before 21july 2) 21july-1au 3)after 1 august on: July 16, 2017, 11:51:20 PM
You are not factoring in UAHF.

BIP148 is a joke, but UAFH will almost certainly fork the network (for the greater good imho).

There's basically no chance that "UAHF" will have any effect on Aug 1. It has no economic support and very little miner support.
167  Economy / Auctions / Re: Advertise on this forum - Round 215 on: July 16, 2017, 11:44:38 PM
Auction ended, final result:

Slots BTC/Slot Person
3 0.75 AlexBessonov
1 0.75 Gunthar
1 0.75 FirstGlobalCredit
2 0.75 TrueFlip.io
1 0.75 bowheadcommunity
1 0.75 Hash_Rush
168  Economy / Speculation / Re: When will bitcoin hit the lowest? 1)before 21july 2) 21july-1au 3)after 1 august on: July 16, 2017, 11:27:16 PM
IMO there are two factors in play:

I've long been thinking that $2000-3000 feels unnaturally high, and may well be a bubble. The 1-year low is like $400 or something, keep in mind. There have been a lot of upward changes in fundamentals, especially the subsidy halving, but a repeat of the 2013-2014 pattern (scaled up) wouldn't surprise me too much.

But the recent drop is almost certainly due to fork panic, and that's way overblown. Let's run through the scenarios:

 - Segwit2x fails to activate SegWit in time, BIP148 fails (my prediction): the status quo continues for 6-12 months, everything is more-or-less fine. I don't think that the market would mind continuing the status quo.
 - Segwit2x activates segwit in time, BIP148 therefore doesn't go off: We get SegWit, which I think would be a minor upward force. The market probably doesn't care that much, but it makes for a good headline at least. Segwit2x could cause further messiness in 3 months, but that's forever away in BTC terms.
 - Segwit2x fails to activate Segwit in time, BIP148 gets miners to activate SegWit quickly: Same as above.
 - Segwit2x fails to activate Segwit in time, BIP148 has significant economic force, but miners don't join it until days later (or never): This is the main eventuality motivating the various warnings, but it's really unlikely IMO, less than a 1% chance. It'll cause a couple days of "downtime" and a massive amount of confusion, but at the end Bitcoin will still be working. And you can keep your coins safe by following the instructions posted on bitcoin.org or in my forum post.
 
If I knew for sure it was all the latter factor, then I would be very inclined to buy right now. But the fork panic may have just kicked off a long-lasting bubble correction; I don't know.
169  Other / Beginners & Help / Re: [Guide] Handling splits: UASFs, BIP148, etc. on: July 16, 2017, 01:24:53 AM
I have Ledger Nano S instead of Trezor,Should I buy Trezor or Nano S can also be used to store btc?

Mycellium and Ledger are fine.

If everyone who cares will withdraw and put the bitcoins into trezor, and just sit back and watch the show for a few weeks, who will decide which chain will be the winner at the end?

There is no universal decision. Bitcoin is about individual sovereignty, not democracy or dictatorship or whatever. Nobody can decide for you unless you give up your freedom/control by using a bank, etc.

If a split happens at all (which is uncertain), probably it won't be anywhere near a 50-50 split economically. One side will be a tiny minority both economically and in mining power, and this will be apparent only hours after Aug 1. For example, if I can find hardly any sites that accept one side of the split, and the market value of that side's coins is very low, and too few blocks are being produced to realistically transact on that side, then that one is almost certainly not going to survive in any economically-relevant way, and I'll probably call the "all clear" in 12-24 hours.

In the (IMO very unlikely) event that it's a closer split than that, then we'll need to give instructions for choosing a side (or using both) and splitting your coins, as both sides will have value and will probably exist independently for while, possibly indefinitely. Depending on how things look, I might immediately call one side the true Bitcoin for purposes of categorization on bitcointalk.org, or I might leave it undefined for some days to see how things develop further. Though the other side can continue to exist even if categorized by me as an altcoin, of course.
170  Other / Beginners & Help / Re: [Guide] Handling splits: UASFs, BIP148, etc. on: July 15, 2017, 06:12:26 PM
My mnemonics on greenaddress contain 24 words !!!!! Is anything wrong?
How can I know my private keys?
If I know my private keys I gain access to my bitcoins outside greenaddress too. Am I right?
Can anyone explain it to me?
Regards.

That's fine. Many wallets use 12 words, but some use 24. They do basically the same thing internally.

Don't do the bitaddress.org thing; it's too error-prone to deal with private keys individually.

How GreenAddress works normally is that when someone sends you money, they send to a 2-of-2 multisig requiring a signature from both your private keys and GreenAddress's own private keys. This allows GA to apply extra account protections such as 2-factor-authentication, which you normally can't do if you have a software wallet. But it means that you can't spend your money with just your private keys if you don't take additional steps. Therefore, for maximum trustlessness with GreenAddress, you should do one of these things:

 - Create a 2of3 account in settings, and use just that account. Then you will be able to spend your money with EITHER [your original 24-word mnemonic AND GA's cooperation] OR [your original 24-word mnemonic AND your additional 24-word mnemonic given to you when you create the 2of3 account].
 - Enable sending nLockTime transactions to your email in the settings. This will allow you to spend your BTC with just your private keys after an up-to-90-day wait time.

Again, it's better not to use a Web wallet at all, but GA plus one of those two additional measures is OK.
171  Other / Beginners & Help / Re: Advice needed: Post-split, how might I best manage coins on separate chains? on: July 14, 2017, 09:37:30 PM
You need to run a full node of every single possible fork to access your coins.

That's not true.
172  Other / Beginners & Help / Re: [Guide] Handling splits: UASFs, BIP148, etc. on: July 14, 2017, 02:38:02 AM
I have no way to download a desktop wallet, I can only use online services to keep my money.

What do you recommend? Don't you think with so many services here on BitcoinTalk Forum there isn't at least few trusted sites where our money can be safe?

Some Android wallets should be OK. You want one that allows you to export your private keys. (I don't know which ones allow this, though...)

If you really need a Web wallet, I guess I'd go with GreenAddress. Make sure you either use a 2of3 account (preferable) or that you get your nLockTime transactions emailed to you.
173  Economy / Auctions / Re: Advertise on this forum - Round 215 on: July 13, 2017, 11:59:25 PM
Ziber prepaid now, so their bids are reinstated.

Current auction state:

Slots BTC/Slot Person
3 0.75 AlexBessonov
6 0.70 Ziber
174  Other / Beginners & Help / Re: Advice needed: Post-split, how might I best manage coins on separate chains? on: July 13, 2017, 08:26:26 AM
Splitting the coins will be a bit complicated. If such a bad split actually happens, someone (maybe me) will write a detailed guide on how to do it. You can't just do what you're describing there and give one copy of your wallet to wallet software on one chain and one copy of your wallet to wallet software on the other, because any transaction you make from one chain will often still be valid on the other chain. So if there are two chains BTC-X and BTC-Y and you use your BTC-X wallet to send 1 coin to an exchange, your transaction will end up on both chains, and so you'll actually send both 1 BTC-X and 1 BTC-Y simultaneously to the exchange (even though the exchange might only credit you for one of them...). You have to create a special transaction that cleanly splits your coins before you can actually use them separately. (One way of splitting is to taint the coins in one of your wallets with a small amount of money generated post-split.)

Bottom-line: Don't try splitting your coins until someone trustworthy makes a good guide. And don't trust any websites to do it for you, since many scam sites claiming to split coins will probably quickly appear.
175  Economy / Auctions / Re: Advertise on this forum - Round 215 on: July 13, 2017, 04:25:38 AM
Ziber hasn't prepaid, so their bids are cancelled.

1 @ 0.36

Bids must be divisible by 0.05.

(Note that I did approve bowheadcommunity to bid.)

The current auction state:

Slots BTC/Slot Person
3 0.75 AlexBessonov [more info requested]
3 0.55 TrueFlip.io
4 0.55 flippounits
4 0.50 ChipMixer
176  Bitcoin / Important Announcements / August 1 / BIP148 preparedness on: July 12, 2017, 08:31:04 PM
There is some chance that BIP148 will result in an economic split of the Bitcoin currency at midnight UTC on Aug 1. If this split is non-negligible, then action may be required by all Bitcoin users. Personally, I consider it most likely that the split will be negligible and that you won't have to do anything, but it's still a good idea to prepare just in case.

A very short summary of what you need to do:

1. Ensure that you have no BTC deposited with a Bitcoin bank or other trusted third-party before Aug 1. If there's no technical way for you to export the private keys for your BTC, then that BTC is at risk. Some Bitcoin banks may assure you that they'll definitely keep your BTC safe, but I absolutely wouldn't trust them.
2. Do not send transactions or trust received transactions starting 12 hours before Aug 1 at midnight UTC, and continue this until you hear the "all clear" from several trustworthy sources. For example, I will post a forum news item if everything is OK, or if everything is not OK and action is required.

See my guide here for more a lot more detail: https://bitcointalk.org/index.php?topic=2012799.0
177  Economy / Speculation / Re: Next UASF in 1 August/2017. Bitcoin UP or DOWN? on: July 12, 2017, 08:36:58 AM
This is turning out to be a real dampener. All these days, I was checking the SegWit2x support levels. It was hovering at around 86% for the past 2-3 weeks, and I was finally hoping that the scaling problems will be solved for ever. Seems like the issue is going to get even worse.

It's very annoying, but there's no reason to get depressed about it. BIP148 will fail because it was poorly-designed. BIP149 is similar, but well-designed (and therefore slower): it'll finally get the job done in about a year, and the sky won't fall between now and then.

The asicboost were not issued on all bitmain asics. Only few ones for personal use, less than 20%.

I don't believe it. All of Bitmain's behavior is in-line with them desperately doing everything possible to preserve asicboost. No other theory explains their behavior nearly so well.
178  Other / Beginners & Help / Re: [Guide] Handling splits: UASFs, BIP148, etc. on: July 11, 2017, 05:18:14 AM
One might be able to argue that it would be best to not send (and avoid receiving, if possible) any bitcoin immidiately prior to (in order to avoid issues resulting from confirmation delays), and after a split up until it is very clear which "side" of the split is going to succeed.

That's what I do recommend in the guide...

Quote
If in doubt, avoid sending transactions or trusting received transactions 12 hours before and up to a few days after the split time, and check the forum for more news. If a major split happens, I will very likely make a post and news item explaining how to handle the situation. Coins at rest are not at risk.

In the unlikely event that there are are insufficient miners or attacks by miners on an economically-strong currency, it won't be too difficult to fix this with a hardfork (manual difficulty adjustment or PoW change). If Bitcoin is already unusable/unstable/insecure, then there's no additional harm in doing an immediate hardfork. We're not just going live with 1% confirmation speed for several months or whatever.

My post-split instructions will provide guidance for any such ongoing or plausible-future difficulties.
179  Economy / Speculation / Re: Next UASF in 1 August/2017. Bitcoin UP or DOWN? on: July 10, 2017, 10:09:53 PM
Even if the hardfork fails. The Segwit part of Segwit2x will most likely get activated.

I very much doubt it. That requires 80% miner support, but BitMain has much more than 20%, and they'll never willingly cause SegWit to activate because it destroys asicboost. The current signalling percentages are a result of BitMain trying to get people to think as you do, in order to hurt BIP148's chances. (I think that BIP148 was doomed regardless, but it doesn't help when people are thinking that "segwit2x" will activate SegWit around the same time anyway.)
180  Other / Beginners & Help / Re: [Guide] Handling splits: UASFs, BIP148, etc. on: July 10, 2017, 10:07:39 PM
BIP 148 will activate SegWit by November, not necessarily in November.

Fixed.

Quote
Note that the split will possibly happen when the Median Time Past is after August 1st, so the split would likely happen ~1 hour after midnight UTC as the MTP is usually 1 hour behind real time.

Close enough; better to be early than late.

Quote
You should also include information about Segwit2x which will activate segwit via BIP 91 and then hard fork 12960 blocks after Segwit is activated.

There's no risk of that yet.

How do I check to see if my wallet will hold both the currencies? I'll bounce around on their website but does anyone have any pointers? Thanks in advance!

If you can export your private keys, then it should be possible for you to split the currencies, though in any case it probably won't happen automatically.
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