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A feature which might be interesting, is an ability to limit the max bet you can make on the site without restricting gambling totally.
You could have a box where the user can enter the max bet they want to be able to make.
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Yeah, as long as your wallet is encrypted, no one else should be able to see your seed. You will still be able to view your seed once you enter the password and unencrypt your wallet, but this can be a useful feature.
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When you go to Tools -> Network, how many nodes does it show you getting block headers from?
Perhaps there is a firewall or something else preventing proper connections. Have you been synced properly in the past or is this the first time you are trying to sync? It can sometimes take awhile for the first synchronization.
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You don't need the bip39 option. In fact you shouldn't be using the bip39 option unless you are restoring another software's wallet in electrum. That is because electrum may drop support for bip39 in future.
I don't foresee Electrum dropping bip39 support in the future. Hardware wallets use bip39 so dropping support for this would also make the hardware wallets no longer function. bi39 is the standard for seed mnemonics. When it comes to HW wallets the seed mnemonic stays in the HW wallet. It is only shown to the user on the display for backup purposes. Electrum never gets to handle it because that would defeat the purpose of using an HW wallet (private keys, such as those derived from a seed, remain on the HW wallet). So bip39 support is not required in order to support HW wallets. You can see here that ThomasV has said he can't guarantee bip39 support will always be there. Sidenote: is there a decent link where I could study the math on just how secure the extend seed option would be at "hiding" a wallet. Is it basically the same math used by my Trezors in creating hidden wallets. Sounds identical. Love math, links?
You can see the code here. It's running the mnemonic through a key derivation function. The custom words are used as salt. This is a function first proposed (ironically enough) in the bip39 standard. Ah interesting and thanks for the link where ThomasV mentioned that. I guess if Electrum dropped support for bip39, it would just make it difficult to restore a hardware wallet's seed without purchasing another hardware wallet. So if your Trezor or Ledger broke or got lost, you wouldn't be able to simply restore your seed to recover the funds. I'm sure there would be other ways of converting it though and just might require using some other tool. |
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You could use a hardware wallet as a form of 2FA authentication without the need for a 3rd party service like TrustedCoin which would eliminate the need for a fee like this and give you extra security.
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Hi. I'm a Linux newbie so at the tiniest issue I don't have a clue what to do. Also as a millennial this whole 'terminal' thing is something that was gone before I was even born (as a previous/current Windows user). I'm entirely out of my element. Anyway, I've tried installing with the 2 different methods and here's what I get: chris@Chris-Laptop ~ $ sudo apt-get install python-qt4 python-pip
[sudo] password for chris:
Reading package lists... Done
Building dependency tree
Reading state information... Done
python-qt4 is already the newest version (4.11.4+dfsg-1build4).
python-pip is already the newest version (8.1.1-2ubuntu0.4).
0 upgraded, 0 newly installed, 0 to remove and 3 not upgraded.
chris@Chris-Laptop ~ $ sudo pip2 install https://download.electrum.org/2.8.3/Electrum-2.8.3.tar.gz
The directory '/home/chris/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
The directory '/home/chris/.cache/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
Collecting https://download.electrum.org/2.8.3/Electrum-2.8.3.tar.gz
Downloading https://download.electrum.org/2.8.3/Electrum-2.8.3.tar.gz (2.3MB)
100% |████████████████████████████████| 2.3MB 160kB/s
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File "<string>", line 1, in <module>
ImportError: No module named setuptools
----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-QGqeCQ-build/
You are using pip version 8.1.1, however version 9.0.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
chris@Chris-Laptop ~ $ pip install --upgrade pip
Requirement already up-to-date: pip in ./.local/lib/python2.7/site-packages
chris@Chris-Laptop ~ $ So what's happening is it looks like something needs to be upgraded but when I try to upgrade it it says I'm already upgraded. When trying the python method it doesn't work either but that's probably because I don't know what In the electrum directory, run: 'python electrum' means. I don't see that anywhere after extracting the download. Any suggestions? The error looks like you don't have setuptools installed, try the following: sudo apt-get install python-setuptools And then run the pip install command again. |
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I installed 2.8.3. Replaced the old version but it's still showing 2.8.2. Let me close it and try again. It won't update. Ideas? I was wrong. It's not the wallet address. It's some number I don't know It says bitcoin:1Coy3ZSMKuCmJ1VpHrM8HWsx4yFM8Jnhpn?amount=0.03485498&time= (I deleted some) Is that the transaction ID? You are copying a request from the Receive tab. You'll want to go to the History tab (which should be the first tab of Electrum). The History tab shows all your transactions and that Receive tab only shows requests you've created. |
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Version 2.8.2 for mac. I'lll look for later but this is what I found. What is the latest?
The latest is 2.8.3 but 2.8.2 should be new enough. I tested with version 2.8.2 on Windows and was seeing the options I described above. What does the copy URI button actually copy? Perhaps its a link to a blockchain explorer for that transaction? |
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I don't think that you would really want to pay for a Doctor's appointment in crypto. If insurance is involved, it would just complicate the whole process. I'm guessing most Doctor's wouldn't accept payments directly in crypto either for this reason.
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1.I am currently using CoinHako, I am afraid that while sending bitcoins from my Coinhako wallet to my ledger, that it is lost for some reason. How possible is such a scenario
2.Lets say I successfully transfer the coins to my ledger, I am concerned the same thing will happen if I transfer my BTC to an exchange. Again, how likely are such scenarios
3.In the event where bitcoin does reach 100K, and we intend to sell on an exchange, who can realistically buy these at such exhorbitant prices. No use having 1 million BTC if you can't sell it
4.I've read that transaction fees are going through the roof, could it scale to a level where transferring 1million BTC would result in fees amounting to 500K for example?
1. There is little change of losing your coins as long as you send them to the correct address provided by the Ledger wallet and you ensure that the Ledger's seed is securely backed up. There is an extremely small chance ( 1/ 4294967296) of losing your coins due to mistyping the address. It is more likely that you might send to the wrong address. One possible risk would be malware that replaces a bitcoin address that you copy to your keyboard. We've seen this kind of malware before that will replace any copied bitcoin address with one of the attackers. However, this is easy to catch as long as you double check the address you are sending to before you confirm any transaction. |
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When I right click the options I get are copy date, copy URI. save as BIP70file and delete.
Are you running an old version of Electrum? If so, you should update to the latest version. Right clicking a transaction ID, should show Copy Date
Details
View on block explorer
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Yeah, this is likely due to an incorrect transfer amount or fee deduction from Coinbase. Although I wouldn't think they would deduct the fee from the amount you specify as this wouldn't allow you to send an exact amount. I definitely recommend you look up the transaction on an explorer such as blockchain.info to verify the amounts sent and the fees on the transaction.
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You don't need the bip39 option. In fact you shouldn't be using the bip39 option unless you are restoring another software's wallet in electrum. That is because electrum may drop support for bip39 in future.
I don't foresee Electrum dropping bip39 support in the future. Hardware wallets use bip39 so dropping support for this would also make the hardware wallets no longer function. Extended the seed like you mentioned is certainly another method of accomplishing the same thing though. |
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The issue with what others mention here is do you guys feel its okay to keep your 12 word phrase in your apt though?
You can always store it in a safe or similar if you are worried about others physical access to it. Alternatively, you could store it on a USB stick in an encrypted container rather than simply writing it on a piece of paper. Just make sure you don't forget the password for the container. |
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Yeah, we won't really have to worry about this until we get closer to August 1st. When we get closer, I'm sure Electrum will release the new version if UASF is still going to happen.
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Ah yeah, so I guess as long as you are using BIP39, it should be possible. Hardware wallets utilize the BIP39 protocol, but I forgot you could create a BIP39 wallet without a hardware wallet as well. Thanks for the info HI-TEC99
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My hero! Thanks so much! Is there some place for people with lizard brains to learn this? Or I can keep bothering you? Lol
Ignore my same question in the other thread.
Thanks again
It mostly comes from experience and I'm sure you'll become more familiar with it as you use it. I'd recommend looking over Electrum's documentation at http://docs.electrum.org/en/latest/ if you haven't already as there is a good bit of knowledge there as well. And, of course, you can always ask any questions in the Electrum forum section. Many users here are glad to help out. |
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USB stick - Truecrypt volume pop it in there encrypt it. best place to keep them. and there encrypted so double protection. just make a couple of backups for emergency use.
Using a TrueCrypt container can give you a false sense of security. First, when you typed your seed or password in a document you later saved in the container, you briefly exposed the seed or password to logging malware. Worse, any time you open a TrueCrypt container your password and work is saved in virtual memory paging files which are not erased on shut down. You need to take steps to tell your machine to delete the paging files or (better) only run TrueCrypt from a computer with whole disk encryption. Interesting, I hadn't heard about the password being stored in paging files. Is it possible to actually extract a truecrypt volume password from a paging file even if the container is not currently mounted? Any links to documentation or proof of concepts on this? |
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Isn't putting your electrum phrase on keepass fine though?
Also i assume most people have a copy of keepass on dropbox right? So would that still be fine? The thing is if you have your electrum phrase on keepass and also on dropbox, then as long as you remember your keepass masterkey password and your dropbox password, then isn't that really all that is needed? I mean if dropbox gets hacked... has it? Well they still cannot open your keepass file without your master password right?
Thanks.
Yeah, I would think that should be fine as long as you are using a secure enough master password for KeePass that isn't easily brute forceable. Also, you must be sure that you never reuse your KeePass master password for any other websites which could end up leaking it in a compromise down the road. |
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no one is aware about my problem of google auth? thanks  I trid to create a new wallet with my seeds but each time i get this infinite 'Please wait' screen and nothing append! its crazy!! If you never set up a wallet with 2FA using Google Auth or similar, you would indeed have to recreate the wallet from your seed. Creating a normal wallet with your seed should work without issues. What 'Please wait' screen are you getting stuck on? Is this happening after you try to restore from the seed? |
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