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1221  Bitcoin / Electrum / Re: Unable to increase fee of Replaceable transaction on: December 24, 2017, 04:22:05 AM
Hey, thanks for that. I selected another random server. How soon should I expect to see some movement?

you can try bumping the fee again. currently recommended fees are 400 sat/B
1222  Bitcoin / Electrum / Re: Bitcoin sent from standard to segwit address - transaction dissappeared on: December 24, 2017, 04:16:58 AM
If the transaction is low fee then you can bump the fee. But first to get the transaction to show up switch servers until you it does.

Re: what happened, electrum relies on electrum servers for its view of transactions relevant to your wallet. If the server you are connected to has dropped the transaction from its mempool because of low fees then electrum won't see it. So if you change servers you should hopefully find it again in your wallet.
1223  Bitcoin / Electrum / Re: "Failed to execute script electrum" on: December 23, 2017, 04:31:50 AM
install the latest updates for your OS from microsoft. see if that fixes it.
1224  Bitcoin / Electrum / Re: Change from MultiBit to Electrum fails on: December 23, 2017, 12:39:28 AM
Multibit classic sets fees that are too low for the bitcoin network. so you need to import or sweep your multibit classic private keys in electrum. There is no other way to get the bitcoins into your electrum wallet.  Export your private keys as per this video: https://www.youtube.com/watch?v=LaijbTcxsv8 . Then import them into a new electrum wallet or sweep them into your existing wallet.
1225  Bitcoin / Electrum / Re: Sent Bitcoin from Coinbase to my Electrum wallet but only £66 is showing up,help on: December 23, 2017, 12:34:30 AM
Coinbase does withdrawals in batches so they sent a bunch of people money at the same time. The other amounts are for these other users. The address in green is yours and that is the only amount that matters to you. Also FYI just look at what it says in the amount field on the history tab. That makes is much clearer.
1226  Bitcoin / Electrum / Re: lost 2fa, lost seed. .04 btc in wallet stuck on: December 21, 2017, 11:05:50 PM
Hey, do you have a guide on how to decode wallet.dat? I have the wallet file and i know my password. I just can't remember where i put the damn seed passpphrase. I thought having just the wallet file i would be fine. PLEASE HELP!

Do you have a 2fa wallet? Is it an electrum wallet because electrum wallets no longer have .dat file extensions? Also why didn't you create your own thread? Creating threads is free here Smiley
1227  Bitcoin / Electrum / Re: online wallet goes offline - possible? on: December 21, 2017, 11:04:25 PM
Note that simply moving the coins to a different address in the same wallet will not suffice since you intend to use the master private key or seed words to restore your wallet in bcc/bcg software. So you need to move them to a different electrum wallet entirely because all the address-specific private keys in a wallet are derived from the seed. This should also answer your second question about how the offline wallet has the same addresses as the online watch-only wallet. From the private key you derive the public key and hashing the public key gives you the address. All private keys in a deterministic wallet are derived from the seed.
1228  Bitcoin / Electrum / Re: Bitcoin Fork Coins on: December 21, 2017, 10:59:58 PM
Wrong forum. This has nothing to do with electrum.
1229  Bitcoin / Electrum / Re: Bread and Electrum on: December 19, 2017, 09:08:42 PM
Yes. It works the same way as with multibit HD wallets. So please take a careful look at this video:https://bitcoinelectrum.com/restoring-your-multibithd-wallet-in-electrum/

In addition to checking bip 39 you also have to use the derivation path m/0' as mentioned in the video above.
1230  Bitcoin / Electrum / Re: Electrum btc probs on: December 18, 2017, 02:18:25 PM
Not reusing addresses is better from a security point of view as well. You should enable it. It doesn't cost you anything but has many benefits.
1231  Bitcoin / Electrum / Re: Electrum btc probs on: December 18, 2017, 02:02:02 PM
It's a privacy feature. All bitcoin transactions are public so reusing addresses is not recommended. By sending excess amounts to different change addresses you avoid address reuse.
1232  Bitcoin / Electrum / Re: Electrum How can I send coins I sweep into electrum wallet on: December 18, 2017, 01:57:48 PM
go to tools > network > proxy tab. Make sure there is no proxy configured there. Then switch the electrum server you are connected to: https://bitcoinelectrum.com/how-to-switch-to-a-different-electrum-server/
1233  Bitcoin / Electrum / Re: Electrum 1.98 not connecting on: December 17, 2017, 05:47:56 PM
hey im having a similar issue with restoring a 1.9.8 wallet, i cant send funds from it and i cant seem to restore it to a newer version. would you have any suggesetions? thanks!


you only have to restore it if electrum didn't automatically upgrade your wallet file. So the question is did electrum fail to upgrade your wallet file or not? And if it did then what happens during the restore from seed process? Just saying it doesn't work is insufficient information for us to help you.
1234  Bitcoin / Electrum / Re: Electrum 2FA Wallet on: December 16, 2017, 11:36:53 AM
You can click on preview to see how much you will be charged. If 2fa is disabled then you are no longer paying trusted coin's fee so that second output to trusted coin's address won't be there.

BTW even if 2fa was enabled what you were paying for is a whole bunch of spending transactions in one go. You can click on the blue shield icon in the bottom right to see trusted coin's fee schedule. To switch wallets go to file > recently open or file > open.
1235  Bitcoin / Electrum / Re: Bad signature for electrum-3.0.3! on: December 15, 2017, 04:05:30 PM
I've just downloaded electrum-3.0.3-portable.exe from https://electrum.org and verified the signature with gpg4win-3.0.1, the signature is valid.
SHA-256 of my downloaded  electrum-3.0.3-portable.exe: ef5f4bcbb19901bebca743323ae7af48fc349837fcf6a09f9a861c18ff8dbe13
Can you tell us the SHA-256 hash of your file?

Verified the sig and did a sha256. I'm getting the same sha256sum as hatshepsut93:
ef5f4bcbb19901bebca743323ae7af48fc349837fcf6a09f9a861c18ff8dbe13

Where did you download the file from ico_fond? There are lots of fake electrum sites so make sure you only download it from electrum.org and of course verify the gpg sig.

One other possibility is that the download wasn't completed when you verified the GPG sig. When I tried downloading it it took a long time to complete. Looks like their server is overloaded ATM. FYI the file size is 18MB. arihan is working on a 3.0.3 torrent and i'm sure once it's complete they'll put up a link to it on the download page. That should reduce the load on their server.
1236  Bitcoin / Electrum / Re: Electrum How can I send coins I sweep into electrum wallet on: December 15, 2017, 03:46:01 PM
So did you import or sweep? Did you use import/sweep private keys or addresses?
1237  Bitcoin / Electrum / Re: How does new addresses generated on an watch-only wallet on: December 14, 2017, 01:38:55 PM
A watch only wallet doesn't generate addresses, you simply enter the address you want to monitor. Generally, the idea is that you create a cold wallet off-line and then enter the addresses it generated in a watch only wallet to monitor the balance and transactions.


This is not correct. A deterministic watch-only wallet i.e. a wallet created using a master public key or extended public key can generate unlimited addresses.

Hi everybody.
As far as I understand the idea, the seed is used to generate your private keys. And from private keys you generate public addresses (public keys). So you cannot generate any public key without having private key, yes ?


There is no such thing as a public address. It is just address. From the private key you derive the public key. Hasing the public key gives you the address. Address and public key are not the same either.

It is possible in deterministic wallets to generate address specific public keys using the extended public key. I'm not a crypto ninja so I don't understand the mechanics of this but if you are interested you can read about it here: https://bitcointalk.org/index.php?topic=19137.0 .

A watch-only wallet can't generate private keys though so it is safe to use it on a computer that may be infected with malware. The only risk is that your privacy will be gone because all your addresses, transactions and balances will be visible to the attacker.
1238  Bitcoin / Electrum / Re: Electrum Seed Not working on: December 14, 2017, 12:03:12 PM
I wonder if it is possible, that when you originally set it up, you went to the seed entry screen and then clicked "back" to go back to the seed display screen... when you do this, it will generate a new seed!

So if you had taken a screenshot, then clicked next... then clicked back to look at the seed again... it would have generated a new seed different from your screenshot.

If that's what happened then when he re-enters the seed to verify it Electrum would reject that.
1239  Bitcoin / Electrum / Re: Electrum Seed Not working on: December 13, 2017, 12:43:52 PM
Did you extend the seed with custom words? If you click on options during the seed entry phase of the wallet restore process you have the option to extend the seed with custom words. If you used that option originally you have to use it again and then provide the same custom words/characters when prompted for them by electrum.

Also don't use different versions of electrum. Use the latest version 3.0.3. Electrum maintains backwards compatibility with all old seed mnemonics so always use the latest version.
1240  Bitcoin / Electrum / Re: Electrum Segwit Transaction size on: December 13, 2017, 12:38:46 PM
https://btc.com/f0dc723b3337523dfa61555f2d4c214a0b6b42e5699d1e39df11b699d61e2fa5

virtual size 212 bytes. raw transaction is 374 bytes

see this: https://github.com/bitcoin/bips/blob/master/bip-0141.mediawiki#Transaction_size_calculations
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