I wrote another thread about this subject but someone recommended me I could ask about it to you guys here on this part of the forum. First of all, my original message was this:

I am trying to help a guy with a project. He mined bitcoins back in 2010, 2011 or maybe 2012. Not for a long time, so its not like there should be worth that much but still, you never know, and we want to at least give it a try and see if we could find this potential money.

So we are trying to figure out where it was mined, first of all. So I was hoping maybe the more experienced members on this forum would could give us any idea about what websites or apps that were available at the time. Maybe he could then recognize it. So we are looking for any information, whatever it is, that could help us and give us a clue where to start.

I guess it is very hard, but it would be great to at least know something more so we know if it is possible or not.

What he recalls:
There was an app or a webpage where you typed in some information, probably a username and/or a password.
Then there was a load of text like a CMD, probably in text or maybe the background was white.


Anyone knows anything about what site this could have been?

I am trying to help a guy with a project. He mined bitcoins back in 2010, 2011 or maybe 2012. Not for a long time, so its not like there should be worth that much but still, you never know, and we want to at least give it a try and see if we could find this potential money.

So we are trying to figure out where it was mined, first of all. So I was hoping maybe the more experienced members on this forum would could give us any idea about what websites or apps that were available at the time. Maybe he could then recognize it. So we are looking for any information, whatever it is, that could help us and give us a clue where to start.

I guess it is very hard, but it would be great to at least know something more so we know if it is possible or not.

I am on mac and I am trying to verifying Electrum, but without any success unfortunately.

I have downloaded and installed the gpg suite. I have added Thomas Voegtlin to the "collection" and I have also been downloaded the .dmg (program itself) and the .asc-file (the code from the site).

First I opened the .asc-file and a messages comes up withing the gpg-program stating that "the signature does not match this message. You should not trust this message, because it was manipulated..."

When I then right click on the .dmd-file and choose "services" > "OpenPGP: Verify Signature of File" it just says "no signatures found".

What am I doing wrong here? 

I got my amount of bitcoin on a usb-stick at the moment. I am using Electrum. Now I am about to transfer the amount to my coldcard (have been making a skelleton file of the wallet and know the adress I should send to). But since I am a little bit paranoid I wants everything to be as safe as it can be so I am thinking of every detail of this and just want to hear if you got any inputs on this. This is what I have been doing so far:

- Got my ColdCard
- There were no holes or anything strange with the package, the bar line on the front said VOID OPEN after I opened it. The code showing up in coldcard was the same as the package.
- Choosed a pin
- Got the two special words
- I know the seed words
- Been making a skelleton file
- Imported it on the electrum on the computer
- Transfered a small amount from another wallet to it
- Recived the money
- I have been sending an even smaller amount of it by the coldcard signing it, worked good!
- I have wiped the seed words on the coldcard and putted it in again, the same wallet is showing after, when I made a new skelleton-wallet

This is where I am now. What are the biggest risks? How can I be 100% this is the real coldcard or that someone on the factory is a thief or something like that? What are the odds of connect to a bad nod over Electrum and can someone steal the money that way?

Would you recomend to send the whole amount directly or piece by piece?

Hi!

I recently got a ColdCard and I have created a new wallet with a seed based on rolling dice.
I am now thinking how I should continue. First of all, should I use Electrum, Wasabi or something else? What would you recommend? I am not planning to use it everyday or even once a month, more like hodl or maybe in a year or so. No plans on getting my own node or anything like that.

Then I am wondering, I have created a 24 word seed with dices and also my own keycode (4+4) so the wallet is created inside the coldcard. But I am now wondering, what is the function "Passphrase" for? The second option on the main screen.
It says something about making a new wallet. Is that necesarry? And what would be the words be used if I would like to importing in inside a complitly new wallet anytime in the future and I need seed words, should I use the 24 words I already have or the new words (I think it said it was 12 words on the new one on the passphrase menu).

Anything else you guys recommend?
And I have another question aswell, how could the coldcard create a new wallet without even having connection to the internet and the blockchain? Wouldn´t that be impossible? Or is it that it is not having been created yet, it is just there, ready to be used?

Bought an amount of bitcoin just around christmas, not that much but hope at least I can have a chance of being on the futures carosuel. Now I am thinking about how I should store this in a safe way.

I use Electrum and since I am planning to just hold this there is no need to login to the encrypted wallet-file. I have created a watch-only-wallet so I can just have a look that everything is ok. I have also copied a backup on the wallet to an externel thing that I never use. I also remember the seed words, will remember them for the rest of my life I guess.

I have some questions and would be greatful to have some answers!

1. Lets say that Electrum wouldnt be used anymore in the future, would I still be able to use my wallet or are they in someone elses hands in one way or another?

2. IF an hacker would got inside my computer, and I never open and typing the passwords of the wallet, it would be very hard for them to got inside the wallet, right?

3. Would it be a better idea to delete the wallet file and just remember the seed words? Is that the most safe way to do it (if you remember of course!)? Lets say I deleted the file and the backup so nothing is physically there where are it then? Is it still a part of Electrum in some way? Should I be worring about futures updates of any changes in the system making it impossible to reach it with just the seeds?

4. Thinking about getting a cold storage setup. Was thinking about Trezor and Ledger but heard som bad news about them and was thinking about Cold Card instead. Am I correct if I say that the reason to have a cold card is to get the wallet file even safer, you still have seed words that can be use to getback the money, right?
Do I need that or is this safe enough for now? I was thinking that if I would buy that I would be paranoid that the company have a list of consumers saved or something like that so the risk to being attack instead would be bigger in the future. Maybe its better and more safe to just make it simple instead?

I just want to take the chance to ask you bitcoin experts around here the a couple of question about this situation and if you know any risks that I should avoid.

The thing is this:

I have imported my old wallet on electrum. The balance is like it should, so it seems to be alright!
Now the plan is to transfer them to a market, or maybe store it on a hardware wallet. Eitherwise I will need to send them from the wallet. Are there any big risks you can come to think about?

I’ve heard that you should never transfer any amount lesser than the whole amount when you have imported a wallet, otherwise you might end with having the rest of the money ”disappearing”, is that correct? Never heard of it in reality but have read in a couple of discussions.

Anything else to keep in mind?

I am wondering, what are the biggest risk on the way from importing/sweeping bitcoins from a wallet to another (lets say bitcoin core or electrum to bitstamp/Binance), is it pre-installated malware, someone tracing the transfer (is that even possible?) or something else?

Hello!

I got a question. Is it possible to find the private key and the things that needed to import an old wallet stored on an old computer? This wallet.dat-file is open in the application on the computer and the app is Bitcoin QT. Since the wallet is unsynced with the network is trying to complete the sync, but extremely slow, the wallet must be open, right?
I mean it should be possible to get to know the private key somehow?

The only thing we know is the wallets address.
We have been trying to use some commands in console with the wallet address input:ed but only get error "-32601" and "-5". Guess we need to put something other than the wallets adress in there?

What should we looking for, or is there nothing more to do?