If you are prepared to post the transaction's ID here we could provide more help. To get it click electrum's history tab, then right click the top transaction and select details from the list that appears. A new window should open with the transaction ID in a text box at the top. Copy that and post it here. If you don't want to post it here search for it on this page. https://blockchain.info/homeIf that website says it's unconfirmed then keep submiting the transaction ID to this website until it says acceleration successful. Afterwards the viabtc mining pool will confirm your transaction for you (probably within 24 hours). https://pool.viabtc.com/tools/txaccelerator/ |
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There's always people who don't notice important events until long after they are over and done. I have known exchanges to make statements months in advance informing users to withdraw their coins because were closing, and yet there were still people who didn't withdraw before they closed.
If there is a chain split there will be people complaining their exchange won't split their coins for them despite the exchanges making statements about it months in advance. If the exchanges didn't make those statements early they would get even more people complaining.
It's a damn shame that there are people not taking things seriously. In case of a potential chain split, the community, social media, and the crypto related news sources are literally flooded with articles, so how can one still not notice things? It's not that it's just 1 exchange stating that a certain coin gets delisted where people might not see or notice that statement -- the first of August is a huge/massive/mega thing if you look everywhere. If people don't act accordingly, they from my point of view lose all rights to complain. Although that's how I view it, there will still be people complaining if there's a fork. In fact years later there will still be people coming out of the woodwork complaining. There are still people making fresh complaints about coins they left on a long bankrupt exchange. It took them years to even notice it went bankrupt. |
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I thought the fact that the price of Bitcoin soared after the Silk Road bust made it clear to any thinking person that contraband was small potatoes in Bitcoin's greater scheme of things.
The publicity the Silk Road bust gave Bitcoin probably enticed a wave of newbies into buying Bitcoin. First they would have read about the bust, then read about how much Bitcoin had gained in value during the previous few years. I don't think the latest busts will crash Bitcoin's price, either they will have no effect or they will result in another pump. |
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So the 20 generated addresses are not "independent", but they have a link each other, so there aren't 2^256^20 possible wallets but a lower number, that however is probably still safe for normal use.
The addresses electrum generates are all part of a deterministic wallet. They are perfectly safe to use unless an attacker finds out your wallet's master public key and one private key from a singe address. It's possible to calculate all the other private keys in your wallet using those two pieces of information. Bitcoinmagazine explains all about deterministic wallets, and that exploit. https://bitcoinmagazine.com/articles/deterministic-wallets-advantages-flaw-1385450276/The problem is this: although you certainly can securely hand out child keys with no risk to the parent key, and you can hand out master public keys with no risk to the master private key, you cannot do both at the same time. The exploit for when that situation does arise is actually quite simple, and can be done with two lines of pybitcointools code. That bitcoinmagazine article also points out that electrum's seed words are as difficult to memorise as random strings of characters. the standard (Electrum) implementation of the second approach is too difficult to memorize – studies show that passphrases like “glow date cost bloody curve wheel cousin picture ring finally bubble press” are no easier to memorize than random strings of characters of an equal security level. |
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mmh, i read that the number of possible private keys is 2^256 (because bitcoin keys are 256bit long). So we have: 1626^x=2^256 solution is: x = 23.99899907 so 24 words for a single private key. Electrum uses only 13 words for many keys  It doesn't use the words to generate a private key, it uses the words to generate a very long random number, then uses that number to generate private keys. The number has 135 bits of entropy. This page explains how secure the electrum seed is. http://docs.electrum.org/en/latest/seedphrase.html |
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I was asking a way like the electrum seed, not memorizing the entire alphanumeric sequence
You could try the method of loci. People use it to memorise a shuffled pack of cards among other things. Apparently it works, but I don't know if it's good for memorising things for years, and I would be very cautious about trusting my coins to it even it's reliable in the long term. https://en.wikipedia.org/wiki/Method_of_lociWhat if you have an accident that affects your memory, or a health condition affects it? No memorisation technique can secure your coins in that situation. |
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So, what is an easy way to memorize a single private key?
I doubt it's possible for most people to memorise a single private key. Maybe someone with a photographic memory could do it, but I doubt many normal people could. I'm sure it is possible with enough practice. People memorize 100s to 1000s of digits of Pi, so certainly it could be done. It isn't very practical though and wouldn't be worth the time commitment it would take to memorize it. There is also too much at risk if you forget the key and don't have it backed up somewhere else. Maybe it's possible to do it for a short time, but it would be very hard to be sure of memorising a key for years. I can easily remember passwords I use every day, but I often find myself at a loss when trying to remember one I haven't used in years. |
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Why they would do this with over a week to go doesn't make much sense, maybe they just felt the need to do it right away?
How doesn't that make sense? I would be extemely pissed if they started to notify people a day or two before the first of August. More exchanges have released clear statements of what their actions will/might look like. It's a normal and even a necessity to notice people far before something is going to happen, especially in case of a potential chain split. People with a functioning brain will withdraw their Bitcoins at least a day prior to the first of August, where other lazy and mentally challenged people will leave their coins on-exchange. There's always people who don't notice important events until long after they are over and done. I have known exchanges to make statements months in advance informing users to withdraw their coins because were closing, and yet there were still people who didn't withdraw before they closed. If there is a chain split there will be people complaining their exchange won't split their coins for them despite the exchanges making statements about it months in advance. If the exchanges didn't make those statements early they would get even more people complaining. |
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No it wouldn't be possible using electrum's default word list because using three words wouldn't result in enough entropy. A three word seed would result in an address associated with a low entropy private key that would be fairly easy for an attacker to calculate. Any coins sent to that address could be stolen by an attacker.
It's strange that 12 words can "encode" safely many keys, and 3 keys can't "encode" a single address. This stackexchange page explains how 12 words are just used to derive an extremely long random number. That extremely long number is what is used to create an almost limitless number of private keys. Three words from the electrum word list couldn't be used to derive a random number long enough to securely create a single private key. https://bitcoin.stackexchange.com/questions/44272/electrum-seed-lengthThe 13-word mnemonic is just a way to encode a 128bit number into something human-readable and memorable. The 13th word is a checksum, and 12 words would suffice to recover the number encoded. So, what is an easy way to memorize a single private key?
I doubt it's possible for most people to memorise a single private key. Maybe someone with a photographic memory could do it, but I doubt many normal people could. |
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damn, i was waiting to get btc below 1500 so could buy some., missed 1800 window. FML.
but i guess there are people who will panic before august 1st and then hopefully ill buy some more.,
I mean, bitcoin crashing to $1500 would be too far of a stretch. That's like a 50% crash down from the recent $3000 all time high. I guess the only thing you can do is buy right now right before it hits probably back to $3000.  or maybe wait for a slight dip again, if it ever happens. There were people spreading FUD and trying to convince newbies it would crash below $1000. They were probably responsible for some of the panic sellers dumping at $1800. Old timers know a 50% crash is unlikely, but newbies can be panicked into believing a 150% crash is imminent. I feel sorry for any that sold at $1800 and hope they learn never to believe the FUD again. |
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I guess no, it cannot recover only one or two address out of 2-3 words in a recovery seed. Only you can generate the private keys of this address from your wallet using the 12 seed to the mnemonic converter, and choose the address you want to recover and copying the address's private key them simply import it to any client.
I know that electrum hasn't this functionality, i was asking if it would be feasible to create a stand-alone "micro-seed" to recover a single address. I was curious about the amount of words needed to memorize a single private key. No it wouldn't be possible using electrum's default word list because using three words wouldn't result in enough entropy. A three word seed would result in an address associated with a low entropy private key that would be fairly easy for an attacker to calculate. Any coins sent to that address could be stolen by an attacker. |
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EDIT: Definitely was Bitcoin Mobile Wallet, along with the others, which was base64 aes-256 encrypted. I found out using openssl, but the passwords I remember were incorrect, so they're lost unless I can remember them.
If you mean you were using Bitcoin Wallet for Android by Andreas Schildbach then did openssl display a "bad decrypt" error when you tried derypting a file? enter aes-256-cbc decryption password:
bad decrypt If it didn't show the quoted error maybe there's still hope. When I tested decrypting some wallet files I found you had to open the decrypted file in an editor like notepad++ to see the 12 wallet words that you can use to recover your coins with. If you open it in the ordinary notepad editor that comes pre-installed on windows it doesn't show the 12 words. These are my instructions. https://bitcointalk.org/index.php?topic=1822148.msg18191881#msg18191881 |
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I dare say, $ 3800 will be reached by next week, so prepare for some rough and rowdy BTC coaster ride.
my reaction to your comment was funny. at first i wanted to say "no way, that is a big rise and won't happen, we already had a huge rise this year from $1000 and that is a ridiculous yearly rise" but then i remembered all the things that has happened this year, the mass adoption in Japan for example, the removal of taxes in a couple of countries regarding bitcoin. and then remembered the same me thinking no way price goes above $2000 this year back in January! and you know what i am going to say this time. i say activation of SegWit is an end to a many year long debate over the block size which has been keeping bitcoin back from rising big time. we should have been at $3800 last year not in the future, so it is easily possible to get there and over it in a short time. Right now I'm seeing $2800 and BIP91 is already locked in and around 250 blocks until rejecting non-SegWit blocks. So if the trend continues, we will see $3000 can be touch and maybe $3800 or more could be broken before the year ends. Who would imagine that bitcoin price has moved this far since beginning of the year? Especially after the first ETF rejection, when the price falls back to sub $1000 and people are saying that bitcoin is dead but look at how the price of bitcoin now. So I guess anything is possible and we may unexpected saw bitcoin grow to $5000, who knows. Bitcoin's price often surprises everyone. In 2013 it had a massive pump up to $250 and I doubt anyone expected it to go higher that year. Six months later it went above $1000. Things are so bullish this year history might repeat itself. Just because it's already been pumped doesn't mean it can't get pumped far higher. |
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After a couple of restarts, the balance has now only a small portion of it as 'unmatured'.
Maybe it just needs some time to sync.
Did your imported address have a lot of transactions made to it in the past? I know it can take a long time to sync a wallet with hundreds of imported addresses. Maybe the same applies to an address associated with a lot of transactions. If you double click the green orb and look at the top of the window that opens it should tell you what block height your wallet's synced to. |
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You wallet might be connected to a node that has a blockchain that's not fully synced. Try double clicking the green orb at the bottom right of your wallet's GUI, then deselecting the checkbox for automatically selecting a server to connect to. After that you can manually select a server from the list that appears and check if your wallet shows your transaction as confirmed.
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I must admit that I am a complete idiot. I meant pywallet, not btcrecover, sorry.  btcrecover is for forgotten passwords, while I meant to suggest you to use pywallet. pywallet (written by jackjack) is a tool to manipulate wallet files and that one can extract a wallet from an HDD image (sorry for confusing you again, I am such a dumbass!). -> YOU NEED PYWALLET, NOT BTCRECOVER. Here's the forum topic: https://bitcointalk.org/index.php?topic=34028.0. Install it on the machine with the image file stored, and then run the recovery. If you need help with it, ask in the topic. The real pywallet can help, but there's a fake pywallet which you mustn't use. SopaXT posted a link to the real pywallet thread, which leads to the legit github of a user called jackjack-jj. This is his legit pywallet github. https://github.com/jackjack-jj/pywalletThe fake pywallet is on the github of a user called jj-jackjack, and it will steal your coins. See how similar the user names are? This is a warning posted about it. https :/ /github .com/ jj-jackjack/ pywallet
This is not a link to JackJack's new pywallet. This is an attempt to distribute malware. Do not use the fake pywallet software in this link, it is malware. It will steal your wallet file and upload it to the attacker. Ignore any pywallet download links which are not posted by JackJack himself. edited: the scam post has been deleted; removed yelling. |
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I dare say, $ 3800 will be reached by next week, so prepare for some rough and rowdy BTC coaster ride.
And if that didn't happen, what will you do on live TV? Its true that confidence is returning back into bitcoin and its something we need to be rejoicing about but I don't believe price will just continue to be pumped without any fundamental reason. In recent times I have not read of any massive adoption of bitcoin neither have I heard that bitcoin as been legalised every news points to the issue of August 1 which means to me, the sustainability of the price is of essence at this time more than before. I read a number of stories about Bitcoin in the mainstream news, most mentioned the price rise, and some mentioned the end of a Bitcoin civil war. Anything that puts Bitcoin in the mainstream news draws in new investors, and they will probably help pump the price for a considerable length of time. |
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Thanks to google chrome I have no idea what email I used. I was really enjoying the community, is there anyway I can get added back in? A small tip on offer for anyone that can help, it was a good chat Thank-you sooo much!  What happened to block your access to your Cryptocopia Slack email? What happens if you open Chrome's settings and click the link named "Manage passwords"? There should be a list of saved passwords in the window that opens. Was Chrome saving your passwords and syncing them when you were signed into your Google Account? If it was you should be able to view them here. https://passwords.google.com |
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It's gone up very fast, but it didn't go up by almost $1000 in one day. During the biggest recent rise it went up by about $550 in one day. The day before yesterday at 22.00 UTC it was $2293, yesterday at 22.00 UTC it was $2847. http://www.coindesk.com/price/  |
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