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1261  Bitcoin / Development & Technical Discussion / Re: Post your SegWit questions here - open discussion - big week for Bitcoin! on: August 21, 2017, 01:00:44 PM
How long do you guys think it will take before segwit starts having a major effect on the fees?
As far as getting advantages from segwit activation (for example lighting network) could take several months to see actual advantages, so that will be a curious development to watch, as you mentioned, and surely there are better technical folks that could speculate on these matters.

I think T-Rex means the extra blocksize space

Actual Segwit activation happens at block 481824, according to achow101 above. From there on, people can start using 4MB of blocksize, but only if they're sending to a Segwit address. That will happen before the end of this week, I think around Wednsday or Thursday.

So, you can expect Bitcoin service providing companies (exchanges and larger retailers) to roll out the ability to send to Segwit addresses pretty quick, both to use business2-business and customer-2-business. But regular users need to start using Segwit addresses too, and that takes as long as it takes, no one can force people to do it (the old addresses still work just fine). Miners may begin to incentivise this by prioritising Segwit transactions more, but they already prioritise on the basis of transaction size, so any Segwit incentive would have to be over and above the existing fee per kB logic. All that will take between weeks and months to play out, possibly longer for the last P2PKH addresses to finally move to P2WPKH (the Segwit address/script type).

In addition, there's another BIP out there (171 i think?) that adds a new Segwit specific address format (current practice will be to use Segwit via P2SH addresses). This will be a whole extra new Segwit rollout of sorts. Hopefully, it will be tested and finalised for 0.15.1 (but I'm not at all sure on the specifics, that's just my ideal scenario). This will only add weeks and months to the overall switchover period, but bech32 (the name for the tech behind this new format) has alot of advantages.


Lightning? I expect we can see some test channels running quickly after activation of Segwit, but I think the software clients are still in development even now. Anyone know some more?

I think BIP173 is what you are thinking of:
https://github.com/bitcoin/bips/blob/master/bip-0173.mediawiki

As far as when, that is still up in the air.


1262  Bitcoin / Bitcoin Technical Support / Re: Recovery Phrase order on: August 20, 2017, 07:56:26 PM
Im pretty sure i know some of the words since i remember that i wrote them down correctly due the fact i found out that the order was wrong.

The first 4 words should be 100% correct since i found it out at that time, but im not sure if that helps at all?

Is there any other wallet i can try to enter my recovery key? That ledger stick is oudated and not even supported on their website anymore / removed from the product list.

Knowing the first 4 words will help significantly.  If you look at Danny's message above (at the bottom where he sums up the math), you will see that even known 2 words helps, and 4 even more so.
1263  Bitcoin / Bitcoin Discussion / Re: Random thoughts on the recent and upcoming hardforks. on: August 18, 2017, 11:17:13 PM
I think two lessons from the bitcoin cash for are:
1. Have at least some hash power behind you that is committed
2. Pick a name that includes bitcoin: bitcoin2x, bitcoin adavanced etc

1264  Bitcoin / Press / Re: [2017-08-18] 'Bitcoin cash' surges 40% in single day as investors bet on... on: August 18, 2017, 10:23:08 PM
40% is quite high for a digital currency many despised in its early days, I guess all the negative hype was all in the bid to buy cheap bitcoin cash tokens ....well played now we wait and see how it will hold up or maybe its just another pump and dump crypto? Only time will tell.

I think the lesson here is that the November segwit2x fork better pick a good name:
Bitcoin2
Bitcoin2x
BitcoinNext
1265  Bitcoin / Development & Technical Discussion / Re: Is it safe to encrypt your private keys with BIP38 and bitaddress.org? on: August 18, 2017, 02:39:10 PM
Is there such a spyware that can simultaneously log your keystrokes and capture your screen because that would be required to steal your encrypted private keys if you only intended to stamp them for example on a metal plate after seeing them on a screen within an offline version of bitaddress.org?
Those kind of malwares are fairly common and almost any malware have these capabilities. Even a keylogger will work, they just need your encrypted key and the password and they can do whatever they want.


Thanks. So the keylogger gets my password but if I only write down an encrypted key and than shut bitaddress.org I should be half-way safe because it would have the password but not what it unlocks - namely encrypted private key.

You also should clear the browser cache, quit the browser etc after doing it.
1266  Bitcoin / Development & Technical Discussion / Re: Is it safe to encrypt your private keys with BIP38 and bitaddress.org? on: August 18, 2017, 12:06:22 PM
I do! Thanks. I would only put my mind at more ease knowing that recreating something like BIP38 protocol is relatively simple task for the educated.

You can also fork it on github which gives you another online backup of it.
1267  Bitcoin / Bitcoin Discussion / Re: next bitcoin fork in Nov? on: August 18, 2017, 01:40:23 AM
No there will be no fork, it is settled

Definitely untrue. There probably will be one.

Bitcoin Core won't be supporting the segwit2x/NYAgreement at least in 0.15.x (0.15.0 is at beta 1) and if indeed the miners go through with the hard fork block size increase there will be the bitcoin fork and the segwit2x hard fork.
1268  Economy / Speculation / Re: BITCOIN = TULIP BULB MANIA? on: August 18, 2017, 01:30:02 AM
This has been the refrain since at least July 2010 when slashdot first covered bitcoins.  Different year, different "journalist" same tired old stories.

All the while one could have made 5000-50000 times ones money if one mined (or bought) and held.

1269  Bitcoin / Bitcoin Technical Support / Re: Sent bitcoin to while it before it was installed completely on: August 17, 2017, 07:09:47 PM
And if that file is gone...  are the bitcoins unrecoverable?  

If that file is gone, you have no backup of it, you can't use software (or hardware) to recover it from your disk, and you didn't export and save the private keys anywhere else, then in all likelihood the bitcoins are unrecoverable.

If you did delete it without a backup, stop using your computer right away so as to avoid increasing the chance you overwrite that portion of the disk that store the file. Then use the software mentioned above search for the wallet.dat file.  You will want to install this software on a different disk and boot from that disk.

As above, is this Windows?  Mac?  If Mac, was Time Machine active?  If Windows, see the poster above.
1270  Bitcoin / Bitcoin Technical Support / Re: Made two transactions stuck...Is there any thing i can do to help on: August 17, 2017, 04:51:05 PM
Yeah... your first transaction has 0 fee... so that's not likely to go anywhere fast... and the 2nd one spends the output from the first... so that cannot confirm until the first one does Undecided

What wallet did you use to send these? You need to make sure your wallet is not rebroadcasting them and wait for the transactions to drop from the mempool (could take up to 14 days if no one rebroadcasts them)... then you should be able to spend the coins again.

WOW, I haven't heard about it before. So waitong for 2 weeks and all my unconfirmed transactions will be aborted and all the money can be reused again? Shocked

It could take 2 weeks. It could take 3 days.  It could also take much longer since anyone can rebroadcast a transaction at any time.  You shouldn't count on the two weeks which is probably why you hadn't heard that before.  ;-)
1271  Bitcoin / Development & Technical Discussion / Re: well....i have a some bad news...and i need contact bitcoin developer. on: August 17, 2017, 01:24:34 PM
The fact that he hasn't come back should say something.  Almost assuredly FUD.
1272  Bitcoin / Bitcoin Technical Support / Re: Reinstalled bitcoin core, wallet still encrypted, now with zero balance? on: August 16, 2017, 10:06:05 PM
Hello!

When I first started playing with bitcoin, I set up a bitcoin core wallet with a ten word passphrase. I sent funds to the wallet, and then I couldn't get it out. Passphrase lost. I reinstalled bitcoin core to start over again. (dumb move on my part) Now there is a zero balance, but the new wallet is still encrypted. I'm guessing with the original wallet's passphrase. (I'm on a mac) That bitcoin is gone for good, right? There's no reason to try and unlock the passphrase it if it has a zero balance?

If you can figure out the pass phrase for the wallet, you will be able to recover the coins.  So you should try to remember everything you can about it.

Even though it shows a zero balance?

Since Bitcoin Core can't access the wallet (and you reinstalled it) it does know what keys are in there so it can't compute the balance so it shows zero. (If you know any of the addresses you can check the balance using a different web site.). If you can access the wallet it can then rescan and recalculate the balance. 



1273  Bitcoin / Bitcoin Technical Support / Re: Reinstalled bitcoin core, wallet still encrypted, now with zero balance? on: August 16, 2017, 09:55:33 PM
Hello!

When I first started playing with bitcoin, I set up a bitcoin core wallet with a ten word passphrase. I sent funds to the wallet, and then I couldn't get it out. Passphrase lost. I reinstalled bitcoin core to start over again. (dumb move on my part) Now there is a zero balance, but the new wallet is still encrypted. I'm guessing with the original wallet's passphrase. (I'm on a mac) That bitcoin is gone for good, right? There's no reason to try and unlock the passphrase it if it has a zero balance?

If you can figure out the pass phrase for the wallet, you will be able to recover the coins.  So you should try to remember everything you can about it.
1274  Economy / Speculation / Re: Is it wise to invest 1k into Bitcoin at this point? on: August 16, 2017, 07:44:45 PM
What is your input?

I've seen people asking that (not necessarily that amount) since 2010 and the answer is that no one knows, but if you believe in the transformative ability of bitcoin, that should give you a good idea.
1275  Bitcoin / Electrum / Re: Electrum Wallet Worries on: August 16, 2017, 07:43:11 PM
Greetings,

I have an Electrum wallet. I find it extremely easy to use. I was told recently that its a "third-party" wallet. Being a third-party wallet it isn't safe, and that
the owner of the program can take control of the wallet/system at any time.

My question is IF its true is there a way to generate control of the electrum wallet, if no, then what is the probability of this happening???

Please share your thought/experiences/expertise, I truly would appreciate it!!! I hope to hear from you soon!

Respectfully submitted,

Danny gave a great answer.

I would also add that if you are storing a lot of value (whatever that may mean to you) and are really concerned, you could use it on a computer that you never put online after your initial setup.   Then it would be much more difficult for it to take control of your coins - even assuming that such an unlikely event came to pass.



1276  Bitcoin / Bitcoin Technical Support / Re: Bitcoin core and abc btc wallet transaction problem on: August 16, 2017, 01:23:56 PM
Do you have a transaction id? 

It sounds like you installed both Bitcoin Core and Bitcoin ABC in the same user space.  Is that accurate?
1277  Bitcoin / Press / Re: [2017-08-15] Bitcoin Price Hits at $4,419, Stock Researcher Forecasts $7,500 on: August 15, 2017, 11:47:42 PM
I don't think I have ever experienced a period of time where the bullish sentiment has been higher than what we have been experiencing lately. I of course hope that we'll be reaching +$7000 levels before this year ends, but I think it would be a healthy situation for the market to consolidate first. I know a lot people would like this to happen, but everyone should realize that nothing only goes up in value -- we need corrections to reach new record highs.

I think many people have realized that bitcoin is here to stay, one way or another.  Getting the blessing of Goldman for example helps.  Previously there were some who felt that way, but many who panicked first and sold quickly because they thought the end was here.  Now there are still plenty who panic, but there are many more than previously who say "buying opportunity" - like today with the dip to the 3900s.

The larger the population that sees the potential, the more we'll have shorter panics. In theory.

1278  Bitcoin / Development & Technical Discussion / Re: How to programmatically generate a list of addresses and private keys on: August 15, 2017, 05:40:27 PM
I need to programmatically generate a bunch of bitcoin addresses and the private keys to them. Later on I am going to fund them with bitcoin.

What are some APIs or libraries I can use to perform this task? I've looked on google but I can't seem to find something that can do this cleanly/easily.

Have you read about HD keys?

e.g.
https://en.bitcoin.it/wiki/Deterministic_wallet
https://en.bitcoin.it/wiki/Deterministic_wallet_tools
1279  Bitcoin / Bitcoin Discussion / Re: How to make locked paper wallets that unlock when btc rises above X price? on: August 15, 2017, 04:45:23 PM
Seems somewhat complicated and insecure to do since it would require a web site somewhere and an interface to an API that could get prices and the private keys stored somewhere so that they could automatically unlock.

Perhaps the easiest thing to do might be to find a big law firm and hire them as trustee and set up a trust with your terms.  Give them a sealed envelope with your private keys. Ask them to store it in their vault.  Then tell them not to return the envelope until the average bitcoin price on the largest X (5? 10?) exchanges at any time is above $Y.   Perhaps use the "closing" price since some exchanges offer that.

It might cost something unless you have a pre-existing relationship with the firm, but you could probably set up an alert that would automatically email the attorney/assistant/law firm general email address when the price was above $Y so they could check it and see if it met the criteria.  

Or you could just put them in a safe deposit box and go there and retrieve the appropriate one yourself.  

Of course with segwit, smart contracts and some type of distributed oracle it might be doable, but it would not be trivial.

1280  Bitcoin / Development & Technical Discussion / Re: Is there such a thing as double segwit? on: August 14, 2017, 10:45:51 PM
Is there such a thing as double segwit

Would that be desegregated witness?

Seriously, can you explain what you are asking in more detail?  Segwit vs Segwit2x?  Something else?
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