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November 17, 2018, 07:56:13 PM *
News: Latest Bitcoin Core release: 0.17.0 [Torrent].
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901  Bitcoin / Bitcoin Technical Support / Re: Core temporarily marks past transactions as "offline"? on: November 29, 2017, 06:15:16 AM
That transaction had hundreds of confirmations at that stage.
Would it rewind that many?
It could happen. I have seen it rewind a few hundred blocks before due to unclean shutdown.
902  Bitcoin / Bitcoin Technical Support / Re: Getting Private Keys out of mobile Bitcoin Wallet on: November 29, 2017, 06:09:17 AM
I assume that it is made on the base of core (it sas that it was programmed by the "Bitcoin Wallet developers - but who am I to know...).
That assumption is wrong. Core does not have an Android app and never has had one. Your wallet is written by different developers and uses different technology. The wallet file is completely incompatible with Bitcoin Core.

However, I try to get hold of my private keys of this wallet. Only question: How?
Bitcoin Wallet for Android uses Bitcoinj. If you are comfortable using the command line and installing JDK and maven packages, then you can use the bitcoinj wallet-tool to extract the data from your wallet file. The wallet-tool is part of the Bitcoinj repository here:
903  Bitcoin / Bitcoin Technical Support / Re: Date Stamp error on: November 29, 2017, 06:06:11 AM
You probably made the transaction without any fees so it was dropped by the network.

You can either update Bitcoin Core and allow it to sync and then send the Bitcoin. Or you can export the private key(s) and import them into Exodus.

To export the private keys, go to Help > Debug Window > Console and use the dumpprivkey <address> command where <address> is the address that you want the private key of. Do this for every address that has Bitcoin associated with it. Then import those private keys into Exodus.
904  Bitcoin / Bitcoin Technical Support / Re: How to check my address balance in regtest? on: November 29, 2017, 06:02:56 AM
You are calling getbalance with a parameter. The parameter is for an account name, not an address. Accounts are different from addresses and wallets. They are a Bitcoin Core only internal thing. There is no way to get the balance of an address unless you add it to an account first.
905  Bitcoin / Bitcoin Technical Support / Re: Reading the Blockchain on: November 29, 2017, 06:01:21 AM
You can just use Bitcoin Core which is already able to read and parse the blocks to get them into an easier to understand format. You can use the getblock RPC command to get the details of each block.
906  Bitcoin / Electrum / Re: Help Needed. Very desperate. on: November 29, 2017, 06:00:39 AM
I also have access to my public AND private keys.
Your private keys are all you need. That is, if you really have them (which means you must have manually exported all of them from Electrum in the past).
If that's the case: go to Electrum, click File > New > create New Wallet > Standard wallet > Use public or private keys > copy your private keys > done!

Then, create another wallet, but this time select Create a new seed. Store your seed, move your coins from the old addresses to your new wallet, and safely eep your seed words.
He cannot do this, the private keys that Electrum exports in that manner are not sufficient to spend from his addresses. He is using the 2FA feature which is a 2 of 3 multisig. He has enough private keys to recover the coins, but cannot do it the way you describe.

Before i go on, I made the fatal mistake of NOT storing my 16 word key correctly, and I have no access to I️t anymore (I know, I know).
Then there is nothing that you can do. The seed phrase is what allows you to disable 2FA (so no need for trusted coin) and spend your coins. Without it, there is nothing that you can do.

Moving on, everything was working great until I just got a new iPhone, when I opened up my google Authenticator app I was shocked when my codes were gone. I set up google Authenticator again by going to but that didnít work when I tried to logon to my electrum wallet and send money to an address (I️t asks for my password which i provide, but gives me an ERROR code in regards to my 2FA code.
The keys for authenticator codes are never stored online or synced with Google services. If you lose them, there is no way to get them back.

I also have access to my public AND private keys.
That is not enough, you need the seed.
907  Bitcoin / Bitcoin Technical Support / Re: Estimated amount of lost BTC ? on: November 29, 2017, 05:49:51 AM
If 4 million are already lost, that means there's only ~100k left to be mined, no?  (16.9m in circulation, 21m cap, 4m lost)  Unless the 'lost' is still considered 'in circulation', then we still have ways to go Smiley
No. It's 16.9 million mined, not in circulation. Lost is part of that 16.9 million.
908  Bitcoin / Bitcoin Technical Support / Re: Help with configuration plz on: November 29, 2017, 05:48:09 AM
my miles command:
my mile program
What are these? Are they part of the command or something else?

How can I solve this problem?
Stop Bitcoind / Bitcoin Core from the task manager. Then start it again.

Looks like if you don't set rpcuser and rpcpassword inside bitcoin.conf file it looks for the cookie file:
There is no need to set an rpcuser or rpcpassword. Just use the cookie file. It seems like that file was not created, so restarting the client should solve that problem.
909  Bitcoin / Bitcoin Technical Support / Re: Lost all my bitcoin on the day of the fork in bizarre turn of events on: November 29, 2017, 05:45:25 AM
Moving on, I can confirm that the coinbase to Jaxx transaction went without interference:

This was probably done 12 hours before the shapeshift attempt.

After the shapeshift took ages and with some funds reappearing in my account (shapeshift still unconfirmed) I did this Jaxx to coinbase transfer
These two transactions are the same...

This comes up with nothing, which is kind of expected as I think this falls into the category of a double spend if I'm trying to transfer the funds when they've already been sent to shapeshift.

Here's the bad part. Following th Jaxx support advice I reset my cache data in an attempt to resolve the stuck transaction. This deleted all my transaction history, until that is i recovered the account on my laptop. So I don't have the shapeshift transfer info. My Jaxx to coinbase doesn't appear on the transfer history either, I only have those details from my emails with Jaxx support. So at this point I create the laptop Jaxx backup. I log in a bunch of times to unconfirmed transfers and then on the 15th and 17th at the very time I log into my laptop Jaxx to check the status I have two sent transactions (when my account balance read 0 how was I able to send these). This is why I suspected that these two transactions were delayed from Sunday and not phishing. If you look at the addressess in the original message you can see the BTC sitting there. I feel if it was a hack then it would be spent or part of a larger value perhaps.

Anything else you guys need?

Again thank you for the support
When you open your Jaxx wallet, what do you see (perhaps post a screenshot)? What are the addresses and txids involved here?

If your transactions never confirmed, then your Bitcoin is not lost and they are in your wallet. If one of your transactions did confirm, then the Bitcoin is with whoever you sent the Bitcoin to (Coinbase or Shapeshift).
910  Bitcoin / Bitcoin Technical Support / Re: Pre HD wallet.dat into new Bitcoin Core on: November 29, 2017, 05:40:34 AM
The good news is, apparently (according to achow here) version 0.16 will automatically convert your wallet into an HD wallet so you don't need to waste fees doing this.
Only if you do -upgradewallet. Also it may not be in 0.16.

So balance would not show up even using HD=0 command (assuming it contains some BTC)? Core crashes without that command with recovered wallet.dat. Thanks.
No, it will show up. The wallet format is not different at all. The reason it is crashing is because when you recovered the wallet you are missing a few fields that should be in the wallet (and the software expects them) but the recover missed them. This effectively corrupts your wallet. Using -usehd=0 works around this issue. You will have full access to whatever coins are associated with the private keys in your wallet.
911  Bitcoin / Bitcoin Technical Support / Re: Core temporarily marks past transactions as "offline"? on: November 29, 2017, 05:35:53 AM
Bitcoin Core will rewind several blocks at startup and re-verify them as a sanity check. It's likely that those transactions were in blocks that were rewound and being rechecked at startup, so they are shown as offline.
912  Alternate cryptocurrencies / Altcoin Discussion / Re: Nuts and bolts of a hardfork on: November 29, 2017, 05:25:31 AM
Still unclear on this topic.  Essentially my issue is that I know the fundamental reasons why bitcoin is trustworthy as a protocol, and why it is resistant to censorship and bad actors.   I am not technically up to speed on ethereum nodes or other leading cryptos, and am under the impression (due to the DAO fork) that the dev's can unilaterally mandate a fork, without proper consensus.  Is this accurate? 
No, that is not accurate for Bitcoin. It may be accurate for other coins where there is only one group of devs and what they say is what everyone generally goes along with. In Bitcoin, there are many groups of developers. Furthermore, because Bitcoin is so large, in order for any change to occur (whether hard fork or soft fork), more than just the developers are needed. Miners will be needed to produce blocks that conform to the new rules. Users are needed to run full nodes that accept the new rules. There are more than just developers in Bitcoin, and the developers cannot mandate that something happen; the community must accept it.
913  Bitcoin / Development & Technical Discussion / Re: Why is scriptSig filled with scriptPubKey before signing a transaction? on: November 27, 2017, 04:36:48 PM
Is there any benefit for bundling all inputs in each signature? Could just respective input (and all outputs) be used when signing for that input?
The benefit is that each signature commits to the inputs and outputs of the transaction so that they cannot be changed. If each input only commit to one input, then more inputs could be added and malleate the transaction. However there is a sighash type that allows this, sighash ANYONECANPAY.
914  Bitcoin / Alternative clients / Re: I want to transfer bitcoin from the Arcbit wallet to the Electrum wallet. on: November 27, 2017, 04:49:26 AM
Your question does not really make any sense.

To transfer coins from one wallet to another, make a normal Bitcoin transaction.
915  Bitcoin / Armory / Re: Armory won't go online on: November 27, 2017, 01:52:36 AM
Error opening block database.
Do you want to rebuild the block database now?
Let it do that. This will take a while though. You should stop Armory if it is running. Allowing it to reindex (rebuild the block database), will let Bitcoin Core run so that you can use Armory.
916  Bitcoin / Electrum / Re: Problems with BTC deposit to my Electrum wallet on: November 27, 2017, 01:51:34 AM
Try switching to a different server.
917  Bitcoin / Electrum / Re: Problems with BTC deposit to my Electrum wallet on: November 27, 2017, 12:13:47 AM
Your transaction is confirmed, so you have received the Bitcoin. This is a problem with your wallet.

Is your wallet connected to the network? Is the server it is connected to behind?
918  Bitcoin / Development & Technical Discussion / Re: List of people who have had commit access to Bitcoin Core on: November 27, 2017, 12:12:00 AM
Has there been any formal announcement about revoking Gavin & Jeff's commit access?
919  Bitcoin / Armory / Re: Armory won't go online on: November 27, 2017, 12:11:29 AM
No. I tried to start it, but it asked if I would let it alter the database so I figured I'd better wait for some help.
What is the exact message that it gives you? Can you post a screenshot? Armory cannot work if Bitcoin Core is not running.
920  Bitcoin / Armory / Re: Armory won't go online on: November 26, 2017, 10:25:26 PM
Is Bitcoin Core running when Armory is running?
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