Actually I am wondering about another thing, just in case you have the answers. What happens if you lose the seed but still remember the pin, can you check your original seed somewhere?
No. If you lose your seed, but still have the PIN, the only way to recover your funds is to send the BTC to another wallet. After initial setup, you can no longer view the seed. Until now i did not hear from any security issues concerning trezors hardware wallets.
...
Trezor is definetly safe!
You obviously missed the whole "critical flaw reveals Trezor seed in plaintext" security issue that occurred a couple of months ago... Anyone with physical access to the device could read your plaintext Seed and PIN from the device memory... https://medium.com/@Zero404Cool/trezor-security-glitches-reveal-your-private-keys-761eeab03ff8Granted, this has been patched in the latest firmware, but statements like "definitely safe" is tempting fate  |
|
|
|
 Decoded, do you have enough popcorn to share or should I go microwave my own? |
|
|
|
How about a dedicated computer just for holding wallets? we are always upgrading parts, I can probably make a no-frills offline machine just to hold my wallets, and connect to the internet only to send and receive coins.
NO! This is not how to use a "two computer" setup... As soon as you connect that 2nd PC to a network you are potentially exposing it... You want to use the 2nd one completely offline and keep it "air gapped"... No Ethernet, no WiFi, no Bluetooth... Basically no networking functionality (after the OS has been installed). This wiki entry is probably a little outdated, but explains the concept: https://en.bitcoin.it/wiki/How_to_set_up_a_secure_offline_savings_wallet |
|
|
|
...The address that it was sent to is just showing nothing at all, I even checked the history of that particular address and it’s coming up blank.
So you checked the Transaction ID and/or the address on a block explorer like www.blockchain.info and it's coming up with nothing?  Where did you send the coins from? Did they supply the TXID? (Transaction ID) |
|
|
|
|
Basically... you want to do:
1. File -> New\Restore (Pick a name)
2. Select - "Wallet with Two Factor Authentication" (option 2)
3. Select - "I already have a seed"
4. Enter your seed (it should say "Seed Type: 2fa", next to "Options" button)
5. Select - "Keep"
6. After clicking "Next" a couple of times, enter the email you originally used
7. Either put in your GAuth Code... or tick the "I have lost my Google Authenticator Account" box and keep going.
Once you've completed, you should be able to use: "Wallet -> Master Public Keys" and you should see CoSigner 1, 2 and 3
|
|
|
|
OK thanks. I don't really get how people are still apparently trading it if the software isn't released, but maybe it's futures trading or something? Anyway I was just curious, it doesn't affect me.
Yes, that is correct... it is effectively "futures" trading on a few (unlinked) exchanges... #speculatorsGonnaSpeculate  There is currently NO BTG blockchain... so technically, it still doesn't exist. All they did was take a snapshot so when they start pre-mining, they have a starting point. One more question: I have read that the BTG fork occurred at block 491,407. Could you confirm that the "Height" in Electrum's Coins view shows the the block that the transaction happened in, and thus that the following means that I bought my BTC at block 491,325, and am therefore definitely OK to get BTG?  (Edit: I guess I'm not allowed to embed pictures.) Correct... Block Number == Block Height... so your transaction was confirmed in Block 491,325... 82 blocks before the snapshot was taken. |
|
|
|
- Close Electrum - Find the Electrum data directory (on windows: C:\Users\YOURUSERNAME\AppData\Roaming\Electrum) - Delete the "blockchain_headers" file - Restart Electrum It should re-download the correct headers (which may have been corrupted by old version connecting to BCH servers) and then re-sync and your transaction should appear. NOTE: if you can't find "AppData" directory: https://support.microsoft.com/help/14201/windows-show-hidden-files |
|
|
|
|
That's unfortunate... you need the seed/private key that matches that xpub... without it, you will not be able to co-sign any transactions from your Linux wallet...
Have you tried restoring your 2FA wallet with the 2FA seed and "Keep"ing the 2FA functionality... rather than "Disable"? After it is restored, checking what xpubs it has... see if any of the three xpubs in the 2FA wallet are "xpub67z"
|
|
|
|
no it is not very important, but actually my ledger arrived and i would feed him. but unfortunately their is no way of moving coins from paper wallet to ledger.but at this moment my bit coin is very safe in paper wallet.
Why don't you just sweep using Electrum? Create a new wallet in Electrum "use hardware device"... then in menu "Wallet -> Private Keys -> Sweep"... put in the private key of your paper wallet... send to one of your ledger addresses. Problem solved!  |
|
|
|
Im sorry as im sure this is answered but the more I read, the more confused I get with terms about splitting and replay tx's etc.
Can somebody help me understand the specific point of holding 1 btc and then having 1 btc and 1 btc2x after fork?
There really isn't any "point" to it per se... some people don't like how BTC is now, and they want to "improve it". So they're implementing some changes and forking off... essentially, this will create an altcoin... it's possible, the new fork could become the stronger coin with more support in which case, BTC as it is now would like be considered the altcoin, and the new fork as "Bitcoin". But what I dont get is where the 1 btc2x is generated from? Its not a new coin so its not pre-mined, right?
Basically, they just copy the current Bitcoin chain up until Block X, then split off... magically creating copies of all existing BTC. You basically double the number of coins you have. NOTE: not necessarily double the value... just double the total number.... so if you had 1 btc, you end up with 2 coins (1 btc, 1 2x) Is it basically down to me choosing to spend either the 1 btc or the 1 btc2x but not having ability to spend both of them? This would seem to explain alot of the holes I think i have in my understanding.
No. You can definitely spend both. After the fork, dont they have to become two seperate chains moving forward thus becoming a new altcoin? Or am I missing something here that somehow wont turn btc2x and btc into 2 chains with 2 coin types after the fork happens? Miners will be generating rewards on two chains causing generation of new coins on a new chain so i dont see how it would not be an altcoin after the fork occurs.
Yes... definitely 2 chains. It's a hard fork, they're changing the consensus rules. So we end up with two coins... Now, the real question is... which one will end up being considered the "altcoin"? Is there a huge money risk here for a long-term btc holder that doesnt intend to stop holding? I think the answer is no, not any more than usual volatile/high-risk of cryptocurrency. Am I correct that I dont need to make a decision on my favored fork if Im just a long-term holder? If some of my above understanding is right about the 1:1 coin holding then i think I simply would hold all my btc / btc2x and in 20 years, i could cashout one or the other from my 1 coin example (but not both). Theres no decision timeline I need to worry about, right?
Well that depends... there are sort of three scenarios: 1. Bitcoin remains Bitcoin. 2X fails to get support and starts to die. In this scenario the value of the 2X coins will plummet as everyone dumps to get whatever they can before the coin becomes completely worthless. 2. 2X takes over as main "Bitcoin". Bitcoin support fades away and starts to die. In this scenario the value of Bitcoin will surely dump faster than scam ICO. You'll only have limited time to assess what is going on before you BTC is worthless. 3. Bitcoin and 2X both continue on with enough support to continue (a bit like Bitcoin Cash has done). The values will go up and down as speculators start guessing which coin is going to win, before things settle down and the world carries on as "normal" If you really don't care, you can just hold both coins forever... and again, you CAN sell both. |
|
|
|
|
Given that network fees are variable... it may not necessarily result in a larger fee if you have 10 inputs making up your 1 BTC, as opposed to 1 input making up your 1 BTC. What WILL happen is that your transaction will be nearly 10 times as large.
10x 148 bytes vs 1x 148 bytes... As fees "should" be calculated on a "satoshis per byte" basis... all other things being equal... a transaction with 10 inputs is likely to need 9 to 10 times the TOTAL fee to achieve the same fee rate (for example, 100 sats/byte = 148,000 sats TOTAL for 1480 bytes, vs 14,800 sats TOTAL for 148 bytes).
Also, NOTE: that the transaction size isn't based on the number of addresses... it is based on the number of INPUTS. 10 addresses with 1 input each... or 1 address with 10 inputs... either way it is still 10 inputs.
It's not like a fiat bank account... you don't put ten separate 0.1 BTC inputs in BitcoinAddressA and you magically have 1x 1 BTC input in BitcoinAddressA... you still end up with 10 separate inputs!
|
|
|
|
|
The one you really need to find is the EXACT copy of the "xpub67z" co-signer from the Linux wallet.
That last one... the wallet type (std, watching only)... xpub67z... is that the EXACT same xpub as reported by the Linux wallet? If so, how did you create that wallet?
|
|
|
|
1100 coins? sounds like a lot... I suspect you have the default units of mBTC set... that is milli Bitcoins... I always suggest switching it to BTC to avoid confusion and mistakes when dealing with transfer amounts. "Tools -> Preferences -> Appearance"... and change the "Base Unit" to BTC. "Unconfirmed" means exactly what is says... the transaction has been sent to the network, but has not been included in a block at this time, so is "unconfirmed". If you get the "Transaction ID" you can go and look at the transaction here: https://www.blocktrail.com/tBTC It will give you a run down of which address(es) the coin has come from, what the fee was etc... ps. You should have another transaction for 1.11111111 BTC incoming |
|
|
|
Well... if you want to transfer the initial 150gigs via a USB drive... plus the ~150meg per DAY via USB everytime you want to make a transaction... no one is going to stop you! It also basically means you're running two copies of the blockchain, which is a bit wasteful... when you can create an online "watching only" wallet... have that fully synced with all the block data... create unsigned transactions and just use the offline machine to just sign the transactions. Also, as a lot of people have already pointed out in countless threads... hardware wallets have effectively made the "air gapped" offline wallet setup mostly irrelevant. Why mess around with a 2nd computer and transferring files back an forth when you can simply plug the device into the online machine and sign the transaction. But whatever floats your boat!  |
|
|
|
One small tip... if you want to "practise" with wallets... I suggest you try experimenting with Electrum on the "TestNet"... you can get a bunch of free tBTC (test BTC) from: https://testnet.manu.backend.hamburg/faucethttps://kuttler.eu/en/bitcoin/btc/faucet/https://testnet.coinfaucet.eu/en/http://tpfaucet.appspot.com/To run Electrum in TestNet mode... you need to start it using the --testnet commandline option. I just created a copy of the Electrum shortcut, and then edited it to include the commandline option:  This will allow you to practice creating and sending transactions in Electrum and get familiar with some of it's features. If you get it up and running, drop your testnet address here and I can send over some coins to play with |
|
|
|
|
Assuming the private key is for an address funded with P2PKH scripts... and it had bitcoin in it when BCH forked, then yes... you should be able to export your private keys and import them into Bitcoin ABC.
Is this advisable? Not really... you should basically consider your offline storage compromised as you're exposing your keys. I'd recommend first moving all your BTC prior to exporting the private keys from Armory to be safe. That way, if your private keys get stolen, only your BCH is at risk as your BTC would have already been moved.
|
|
|
|
Fact is in previous Electrum versions 2fa wallets had 24 or 25 word seeds. But now it's just 12 words.
In previous versions half the 24 word seed was viewable via the wallet menu > seed after the wallet had been created. So you could view 12 of the words there but they were useless and misleading because they wouldn't restore your wallet. You needed all the seed words i.e. 24 or 25. Maybe this is the source of the jackg's confusion.
Learn something new every day... I've never seen any reference to 24 word seeds with Electrum before. Huh...  I stand corrected. |
|
|
|
|
Ok... so it seems to me, that the issue here is that you are unable to recreate a wallet that has the private key(s) to be able to sign transactions created by your Linux wallet.
With 2.9.3 on Linux, you should be able to use the following menu option: "Wallet" -> "Master Public Keys"
You should see a window popup with a list of all the Master Public Keys. I assume there are only 2... "co-signer 1" (The Linux wallet) and "co-signer 2" (which should be the Mac wallet). is that correct?
The trick is to identify which seed/wallet that the MPK came from... once you do that, you'll be able to use that wallet to sign the Linux transactions. Are you sure you don't have any other wallets (non 2FA) on your Mac? Have you tried clicking "Open" and see if any other wallet files are listed?
|
|
|
|
NO. You need either the 24 word seed or the "secret key" you got from the wallet.
Did you write down this "secret key" by any chance - you should really do that anyway? You can either do that or use the 24 word seed, although it should've given you a 24 word seed when you made the wallet - but search as to how to do this.
Ahhh. I get it.
The key is sort-of a representation of the 24 word seed. If you have a copy of that and the regular seed you SHOULD be fine - as you seed is stored with TrustedCoin as I understand it (although, if someone else here could suggest how to get the 24 word seed that'd also be useful).
What on earth are you talking about? A 2FA wallet in Electrum generates a 12 word seed. That is all. Where did all this nonsense about 24 word seeds and "secret keys" come from? And TrustedCoin don't store your seed. All they have is the 3rd master private key from your 2-of-3 MultiSig wallet (which is what an Electrum 2FA wallet is). The "2FA key" is simply the master key for Google Authenticator to be able to start generating 2FA codes. It has NOTHING to do with Electrum or seeds. So If my computer is damaged (wallet file) AND I loose my cellphone (Google 2FA) I can recover my wallet with just this 12 word seed?
YES! The 12 word seed you wrote down when you first created the wallet is ALL that you need to recover your wallet in case your computer explodes or you lose your phone with the GAuth on it or TrustedCoin go out of business and you can't use their service anymore. If any of those things happen, you simply create a new wallet, enter in your 12 word seed and when prompted if you want to "Keep or Disable" 2FA, simply select "Disable". This will create a copy of your 2FA wallet that actually contains 2 master private keys, so you can then create and sign transactions yourself, without needing TrustedCoin to provide the 2nd signature. You can actually test this functionality by simply creating a "new" wallet and putting in your seed and selecting "disable" now. Once you're satisfied that it all works and you are comfortable that you can recover everything, you can safely delete the "restored" wallet and continue using the original 2FA wallet. |
|
|
|
|
Show Posts
