If it's the same buyer you have to act quickly.
This transaction also has 1000 satoshi tx fee, which imho it means 8h or more to confirm unless doublespent.

From what I see the other transaction from the double spend is already confirmed.

Yours: https://blockchain.info/tx-index/184988716
Confirmed: https://blockchain.info/tx-index/184989041

The buyer had 1000 satoshi fee for the first transaction (so he didn't really want it to go through these days) and 14000 satoshi for the transaction that went through.

Slow.
If you want to be sure of the transaction - and a proper store will always make sure it doesn't lose money - you need at least one confirmation.
On good days a confirmation takes some 20 minutes. On bad days, especially with the current spam attacks / clutter on the network, you need high fees just to make sure your transaction goes through within hours. The unlucky ones wait for days, just check the threads around.

So it's slow. And unless something is done, it will become even slower and more expensive.

So you made your account only to post in 2 places that you won in that ongoing contest.
Maybe it's one of my pessimistic days, but I don't believe you, sorry.
I have a feeling that you are affiliated with that website and here you just do some extra advertising.

I hope that you're right...
I am also thinking I should have sold at 56k.
I was optimistic until ~1h ago, but now I am slowly turning pessimistic...

Somebody has cashed out 600k waves.
Now the interesting part starts: will the trend continue and others will dump too? Will somebody take the opportunity and "buy cheap" (I don't want to discuss if it's indeed cheap or not now)? Or will the market go on like nothing happened?
We'll see. For now somebody bought back 150k waves, so the signs are good.

The money is never lost.
It can go through and then you receive it.
The sender wallet may re-broadcast it from time to time and if the fee was not awfully low, it may go through sooner or later.
Or it can be rejected and it will go back to sender.

Hi.
Just take a look here: https://btc.com/stats/unconfirmed-tx
There are a lot of transaction in the queue. Much more than usual.
This means that if you want your transaction go through in a normal time, you'll have to pay much more than usual.

Not counting that you will either have to mine some altcoin with that hardware, either invest your money into proper gear, your free electricity story will end at the point they'll see the huge growth in the power consumption.
So whatever you do, please start gradually and certainly don't quit your job.

Actually I believe it's a spam attack.
We've had it about a week ago too, back then the mempool rose to 23MB then and it took one day to clean up and get to normal.
Now I see again a rise to 16MB yesterday and one more started last night and still continuing, now reaching about 28MB. Somebody is clearly trying something... it's ugly and needs time to clean.. after the spam stops...

Yes, 2 branches. Just you will refer to them from that point as 2 blockchains, not as 2 branches.
They have some history together, but no future together. So it's not anymore the same chain.
Same chain would mean that a NEW transaction on one branch would be accepted on the other branch and this doesn't happen.


This is an explanation ... rather confusing.
A theft had happen. So what they did (from what I know) : they did TWO STEPS:
1. They did a rollback to a block just before the theft transaction had happen. This is a "go back into history". The new "NOW" became a point where the theft didn't happen "yet".
2. They did a fork THERE.

The result was a branch (chain) with the correct history and supported by some, a branch where the theft DID happen (ETC)
and a branch with some history erased, where the theft did not happen (ETH).

While the ETC branch is more correct by common sense, the ETH branch is the one supported by the original devs and it has a pretty good reasoning because it stopped a huge theft (although I don't like the approach).

No. Rollback restores a previous state.
Fork is a split up. For whatever reason the blockchain splits. It can be an attack, it can be a software change...
Normally the blockchain is like a string, the blocks relate one to another and each next block goes after the previous one.
At some point some miners will accept a block as valid, some others will accept another block as valid. From that point they are split up, there will be 2 branches.

Bitcoin and altcoins are considered high risk investments because the market is not regulated and highly volatile.
Pumps and dumps do occur, especially in altcoin markets and you can be easily get trapped into buying at peak and selling at bottom.
So if you have no clue, no, there's no such opportunity for you, sorry.

Also the first lesson here is: never get investment advises from random people over internet. You don't know if they want you good or only want to get your money.

GPUs use to be more problematic on overload, since on high temperature their fan has to work a lot for long time. From what I've read some time ago the fans are the first to break.
CPU is not an issue. And you can start CPU mining with lower priority and the other processes will have their chance to use the CPU if they need it.
On windows that's start /low minerd......

From what I see, that article was written in 27 September.
So.. why this didn't affect the price one month ago?
It has to be something else that drives the price up. Or maybe that ICO is near / is more than an idea?

I am curious how many will try to abuse the system - create tons of accounts - without reading the rules and without making the minimum number of posts.
And I'm curious how many will abuse the system for real making tons of accounts and tiny posts only for the contest.

I think that pay-per-post options I've seen attempted here and there are better than this for creating a user base.

So you need help with the wallets, need help with marketing.
The coin is a simple SHA256 one (Bitcoin clone).
The number of coins is huge and from that 17% is premine some chunk of it being for ICO.

I see no idea, no skills, just a shitcoin and an ICO.
I really don't see why would anybody invest into this (money or hashes).

If you want funding, you have to get a loan (from banks or from people - online or offline) with valid collateral. No matter what the idea is, the loans are the same.

A second option would be to have some sort of startup and ask around for funding (bonds, shares, ICO, name it).
But if you want funding you have to share info on your idea, increasing the risk to get stolen.
And, if it's so simple to earn money you would have sold everything already to earn the money 100x and buy back.
It has to be a catch. A risk. And seasoned investors will ask about that. Nobody would believe that this is risk free.
And then you are back to square one: loan.

Maybe I missed something, but this is all I can do with your problem.

Yep, OP missed an option.
I don't care if I have to sell or I can buy directly with Bitcoin (though obviously it would be easier and nicer to buy directly with Bitcoin) as long as my Bitcoin (or Bitcoins + altcoins) would be enough to buy a Lamborgini.

All the honest Bitcoiners hate PayPal's way to reverse transactions. And now somebody proposes that directly in Bitcoin? Why?! No.
For merchant solutions there are the multisig wallets, they can be used nicely and safely. You need at least 3 keys: seller's, buyer's and one for the person that could do arbitrage if needed.

For safekeeping your money, I don't see why you need more than one key. If you want to do keep them safe, print some paper wallets and you are done (edit: and companies/exchanges SHOULD use cold storage as much as possible). Or you can use multisig, but you would just make your life more complicate...