Yup, by brute-forcing the key, the chance to hit a collision is close to 0.0000000000000000000000000000001%. Wait,

No, what they talking about (in this thread) are those neglectfully stored wallet.dat files, private key backups, paper wallet images or other forms of backups which potentially have funds.
History can tell that some people are stupid enough to store those (not only wallets but passwords and sensitive info too) directly in the internet without "hiding" the files with a disguised file name, file type, etc.

This one for example:

@OP, this isn't "hacking" and... use this to display the image (the link must be the image's direct link that ends with ".png/.gif/.jpg"):

Before thinking about the email if it was something else, ask yourself if you're expecting an email regarding a passphrase.
You might be wasting your time on that.

Emails containing malware and links aren't "that" rare specially if you're actively using that particular email address as a contact on websites that requires registration or subscription.
Can you tell us about your email address' info (not your email address) if it contains a name which is known among Bitcoin users like "Satoshi", "Nakamoto", "John Mcafee" etc because those are often targeted by malicious email senders.

Bitcoin Cash is a Hard Fork, a valid example of a Soft Fork is SegWit which has some software changes that didn't required a new chain upon its implementation.

I can't further help the OP with this, because I'm not well informed (for now) to the "technical side" of Soft-forks/Hard-forks as well, but this link may help: https://en.wikipedia.org/wiki/SegWit

For others who didn't understand the quote:
They needed help because of the difficulty wasn't adjusted right after changing the algorithm.
And now since those ASICs aren't capable of solving the new algo as quickly as before, the current hashrate cannot keep up with the difficulty which makes the
What bugs me is: where the hell did those extra 200,000ETN per block (if mined under an hour) came from? From the dev team's wallets?
So: 26 blocks x 200,000ETN = 5,200,000ETN at most.
Aside from the "Mining Reward" from their Mobile miner, just how many ETN does Electroneum development team have?

Those were validated by all of the nodes via consensus, means "the more, the real~er".

In the end, all other nodes will invalidate that edited block because your node is the only one "voting" that block 3c is valid.
If someone try to make a transaction that uses an input from that block, it will just return with an error like "invalid missing inputs".

Quoted and Verified.

It's a game so I assume that your target market would be teens and young adults?
You don't necessarily need to worry about people who didn't want to deposit for the types of persons at that age and "game preferences".

Just make use of the 3rd party service providers that they probably use and trust like Bitpay, Coins or others as a payment channel to buy "game credits/cash/coins".
With this, they wouldn't really need to trust the game, they just practically "bought" points. (every Game Providers do this)

You might wanna change the "betting" into "reward" by not using bitcoins directly as bets.
If it does, this will just look like a gambling app disguised as a game, and the available market will be slim.

Hope this helps.

Try to minimize the possible problems by deduction.

• Reshuffle the GPUs and see if GPU 4, 7 & 12 are fine on other slots.
• Look at the performance of the normal cards to the PCIe slots where those slow GPUs are previously inserted.
• Do all GPUs got the same bios versions and OC settings?

These are pretty much the basics, other possibility is PSU's connectors and rails setup might affecting the problematic GPUs.

Look again, all prices were now claimed  
Seems like after the discovered seeds got posted, the others became too easy to connect by crossing out the used words (that has no "x2" mark), especially for the 5x consecutive solo winner, but hiding the words is also to his advantage.

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Connecting them is too tricky because the arrows aren't exactly pointing to the direction of next word.

Theoretically, judging from the total number of words, someone can write a software to bruteforce the possible seeds based on the words from the image. 120~ish, that's a very small library compared to BIP39's or even Electrum's Word list.
Just a possibility, never mind.

Ready for the second round!

Aside from the vulnerable versions, double check the site where you've downloaded your Electrum.
There are couple of fake sites which are almost identical to the original electrum site, excluding the recently taken-down electrum.com (not identical but claiming to be legit) which offers malware electrum downloads.

The official site is: electrum.org - No other alliterations, subdomains or url extensions.

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If you want to use Electrum, create a new mnemonic SEED phrase using the application itself, offline/online.
Any pre-generated SEEDs can be compromised during the creation or transfer, its security flaw wasn't brought by electrum.

Depends, is your electrum came from the official site? (electrum.org)
And... your version has a vulnerability that can potentially compromise your bitcoins if being actively used.

The mnemonic seed can also leads to different format/"types" of address sets by setting different derivation path.

I see, your problem is: Every wallet you've used can't seem to import your master private key, right?
Use Electrum: electrum.org
I've tried your test key on Electrum and I think I found the culprit.

At first, it appears to be in the correct format while Electrum's next button is still unclickable, but I noticed that there was a hidden space somewhere between "nmK8" and "ppSV".
After removing the space, the restoration process went through.

here's a sample address from that test master private key: 192CfrTf5cxGSZX6AjLv6jikU4HVJRQ8bG
Signed by me:

It seems like the output file or text of the master private key dump of your previous wallet produces an invisible space.

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Try to copy your other master prv keys to a text file, find a(the) space and delete it.
Copy the fixed master private key then, restore your wallet.
And here's an easy way to find where the space is: double-click the xprv key, the space should be after the highlighted characters.

If that's the case, a single Pentium4 PC can process 600 Million transactions per year; in exaggeration, set the difficulty to 1 and you can mine with an abacus.
The problem with that setup is it only requires a single person or group to manage the (centralized) miners which must be trusted by the whole network.

Of course, we will benefit from no/low transaction fee, low network power consumption, anything you can think of.
But with that, if a single corrupt person or an attacker got his hands on the miners, the whole network will be the victim.
Everyone can't even trust the most trusted person in the world: Dave.

Bitcoin was designed to be "trustless" or decentralized, the ledger must be "copied" exactly and verified by each of the nodes, new blocks must be verified by them, and "mining" must be done in a decentralized manner too.
All in order to be "trustless" without the requirement of a middle man or a centralized operator.

Actually, I almost found all of them (even the hidden ones like "rotate").

Try this:
Using Photoshop, create two transparent layers for markings and another one for connections. That way, it will be easier to organize.
The real problem is following the arrows or finding the right arrow-like shapes nearby each words, fake words and guides are tricky.

Seems like, yes.
Some words' strokes are similar to the unedited drawing, it could be those.

"my UTXOs"; UTXOs contains Bitcoins, "my" means yours: You have Bitcoins, In other words.

Alright, you're trying to say that there are no bitcoin addresses in the network which most of us are claiming as "in their possession" and the private keys are the only "controller" of the funds.  

No, leave the scamcoins and their conspiracy theories out of the discussion.

There's no such thing as "pre-mine" that's just the early stage of a coin which only the developers and early adopters are the only miners in the network.
Scamcoins/Shitcoins usually use that as an excuse to their Pump and Dump scam: 50% Premined for future developments, etc.

One scamcoin modus for example: Developers have secretly mined the earliest blocks until they reached a sufficient amount enough to pump the price once it reach the exchanges, when the investors flock in, they will dump the remaining coins in their possession ~dirty profit.

And you've mistakenly identified POS as ERC20 Tokens.

Paper Wallet? Show an edited picture of the printed paper wallet with covered private key and prvkey's QR code.
There are too many workaround to fake this like printing a bitcoin-loaded address paired with a random prv key but,
Paper Wallets' private keys are meant to be hidden and offline, the user didn't want to tell others that he own a bitcoin in the first place.

With this, leave Paper Wallets out of the available options.

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No, LOL to this:

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Other wallets? achow101 already replied with the best answer.

It looks like the browser's fault.
The CSS style wasn't loaded after the HTTP script, the javascript was not initiated either.
Failed registration/fill-up forms can be blamed to javascript errors.

That usually happens when the browser doesn't support Javascript,  CSS scripts and javascript (ex. Mobile browsers, Opera Mini/ I said javascript 4times/ no I didn't).
Or it was disabled in the browser's settings.
Slow internet connection can lead to the same error too.

Are you sure that it was Bitmain's site? The URL must be Bitmain.com, no other alliterations.
Things like a fake site to phish accounts are not too uncommon especially crypto/bitcoin-related sites like bitmain.

If it's not, go to the official site and change your password immediately.

P.S.: Their site is not actually shitty, what's shitty are their ASICs' quality, mostly the last batches.

Yes. But also, it depends on the person's level of thinking and how much experience he has from the past volume of transactions.
Overall, someone can tell the best fee based on how fast or slow (rate of) the number of unconfirmed transactions has been displaying in a live statistic site.