1. You install all three on your computer.
2. Follow the installation steps (ensuring you change the datadir used for each).
3. Create desktop shortcuts for each. If you're using Windows for example, you'll want to make a shortcut to bitcoin-qt.exe -datadir=YOURDATADIRECTORY.
This will ensure the blockchain data doesn't get overwritten by another client. Only run from these shortcuts!

This will be helpful : https://bitcointalk.org/index.php?topic=2855806.0

Bech32 addresses/private keys can be converted into legacy addresses/private keys. They both hold the coins (technically) but the segwit address allows it to be signed into a smaller transaction size.

Your question is quite vague could you give a more specific idea of what you want answering?

I'll answer a question I think you're asking:
1. A private key is randomly generated from a piece of software following rules precoded in that software (e.g functions in bitcoin core). This is a randomly generated set of numbers and there are so many options it can be assumed that, for now, no address can be given out twice. Much like the 2¹²⁸ seeds that get randomely generated by many HD/SPV.
2. The address is then some sort of hash of this private key so they should also be uniquely generated.

Checksums are run on the addresses themselves also. I was looking into the new bech32 address checksums and the simplest takes the last 6 digits and the rest of the string (minus the bc1) and runs a checksum operation to check the address was inputted correctly and attempts to resolve up to four errors in the address.

I'm not sure there are any coins that are good for mining with a CPU than there would be with a GPU. As both can run similar processes but GPUs generally can run more complex ones as they have a generally much faster clock speed and also quite a lot of RAM normally. Unless you could find a new altcoin that has just started to be mined so there is a low difficulty then you might get something. Otherwise, without an asic/GPU, mining isn't economically viable.

If it's a CPU only algorithm, you might not need a pool with the power you have solo mining (might?) be more profitable.

There is normally a console command to mine a coin from inside the wallet software.  I found this guide, it might be helpful: https://blockonomi.com/how-to-mine-monero/

JSON and URLLIB (preisntalled in Python are helpful - if you are pulling info from it). I started fiddling with pulling block data from it.

They do have a limit of one request per 10 seconds which is quite slow if you want to pull quite a few blocks (I haven't tried going below it but now and again if you make 2 requests in the same 10 seconds it might go unnoticed).

Python is used a lot of programming apps as it's easier to program and is a bit more forgiving syntax wise than other programming languages are.

There are some useful code snippets on github depending on what specifically you're trying to program for? If you want to look into basic stuff, there's a Python module called Bitcoin-tools that might be helpful if you don't want to code from scratch.

As an extra note, Python is quite slow as a language to run (not entirely sure why) so you can't make really complex stuff using it, for that you'd turn to C/C#/C++.

Ahh. So it's just buggy blockchain.info again. Presumably due to both txs being in the mempool at the same time?

It is programmed to only use the transactions in the mempool and the mempool should only have the transaction with the highest fee and kick the other one from it (that somehow didn't happen with blockchain.info here).

If it's on bitcoin core then no one can enforce anything as it's not actually negative. It just looks like it is from that part.

If it's on an exchange then it's unlikely but possible they might try something to resolve it.

Was the bug not resolved as the double spend was though?

Would it not be better to use a table to store the details. Maybe? Like:

username

Profile link

accusation link

With the accusation link being where the page is the user was accused of merit farming.

It's pruned though... I could get that anywhere for cheaper. And the bandwith isn't great.


They don't appear to accept Bitcoin as a payment either.

If you want a successful ICO, don't use example code. Get a team of developers on it or do it yourself.

Most coins are open source so you can edit their scripts and incorporate it into your own. Do research also and find something innovative that'll make people want to buy your coin.

That means you've sent the funds to another address. You probably don't own that address so unless you can remember where it is. Someone probably stole it because you put it on the cloud and the cloud can get hacked...
Can we get a screenshot of this?

Go to the addresses tab, hit alt+a.

Right click on the address you want to use and click spend from. It'll go to a sending window and you can then delete inputs so just 1 input goes into the transaction, or collect the rest of the coins as change. (First option is cheaper but less anonymous).

If you don't see the address, click on the drop down menu and check both "change" and "used".

Yes but you'd still need to remember to run it with the datadir command each time.
If you have an internal ssd big enough, you can make desktop shortcuts for it and set their images to the logo of the corosponding wallet and give them a good name so you won't get them mixed up anywhere.

Even if you put the datadir somewhere once, you need to keep reminding it as it looks for the config file in the same place and unless you try extensively fiddling with file permissions and links then it's not going to work just changing the datadir once.


Nope, it does it on a lot of them.
Bitcoin Unlimited was the first to catch my attention by it. I'm not sure if any before them do it. (I've had litecoin core installed but I no longer use default data directories due to this issue - that's much safer of an option). Instead I use a different path for everything and then if I don't get a message box saying that there is an error and it goes back to resyncing from the start, I know I've loaded it wrong.
I was told the issue with BU had been fixed, but I'm not trusting that myself and doubt it was even true.

You're right about the VM thing, however, dual booting the computer with another operating system just for the altcoins might be a good idea if you can't afford another computer. I'd dual boot from an external hard drive though so you don't accidently make a mistake and put something on the wrong one.

Change the gap limit variable in the console by running:

Run:

To get the current gap limit.

Reference

You could probably try:

And see if that works.

Yes it is quite an annoying thing to do. You could always install electrum portable on the USB stick and use that. I have one on a external hard drive only use it on TRUSTED DEVICES and you're fine. It is safer just to use the regular electrum version but if it's a pendrive that will be kept really safe and only used in one or two computers then you'll probably be fine (I had 1.26BTC in mine for a few days and it was fine).

Portable versions get other issues as well though. Iike stuff might get deleted by antivirus stuff!
Make a backup of the USB stick also onto another USB stick/sandboxed computer.

Yes it does that often. If you have a different machine or a VM run it on there. The bu client is made to use the same default directory (presumably due to a shoddy developer not changing the default directory it should use). If you don't have a separate computer. Load a script/shortcut to make it use a specific datadir.

Did you change the default directory bitcoin unlimited used before installing?
Is that the only error in the debug.log. if so, you'll have to run bitcoin core with the -reindex command and try not to run clients of forked coins on the same device without ensuring the default directories will overlap.

Linux is ~/.electrum I think and windows is C:\users\user\appdata\local\electrum_data\

Should be the data directory location.
Though I'm not sure for Windows is it's called electrum or electrum_data.

The config file uses absolute directory path which means it probably keeps iton your pendrive and doesn't copy it over (almost certain on that).


Directly in the data folder, you get files. If you spot a file called blockchain_headers it's in that same directory it's just called config (don't think it has a file extension).