What would be the best way to prove someone owns an address?
I can ask a person to send me a very small amount of bitcoin and I can check my transactions to see what account it's coming from.

But then if they're using something like coinbase, won't many people send from that same address?  Or that address change over time.
Would a good check be having them send from the same address twice (maybe a couple weeks apart)?
Is there some kind of check to see if the address is a group address?

I think in some asian countries, if your company goes bankrupt you go to jail.

The insurance for that other wallet was 3% a year.  That's a lot, but it's an option.  Maybe an insurance company is bringing in their own staff to take over mt gox.  Maybe this company buying it will pay for any missing bitcoins or offer free insurance and make money on trades to cover the insurance for 1 year (big ifs).

As for the loss.  I'm sure they have a record of each customer and what amount they should have.  If they still have the coins or money, they can give it back to these people anytime they want or send it to an address they give them.

Like that wallet backed by loyds of london.  There's still a chance MtGox still has everyone's money or 90% of it.  They probably didn't have enough time to re-write their software, so they stopped all transactions.  Coming back insured by a company like lloyds of london is probably the only way anyone would ever use them again.

Now I know nothing of what's going on and I wouldn't put money on this, but I'm trying to figure out why they bought Gox.com

So I assume it is true that they bought it and add cred to that leaked paper?  Well I guess you could just forward any site to mtgox.com if you wanted, wouldn't see the point though.

Yeah, I guess you couldn't restrict the client for the number of attempts.

Well can you make threads and test 1000+ keys at once with a client software?

Eventually you'll run out of memory on your computer for the amount of requests made, but each request isn't that much is it?
(Also I know my wrong, I just want to know why)

It really wouldn't matter if I moved my private key because who's ever searching is searching for a random private key, not mine in particular.  You could have 1000s of computers guessing random private keys.  If they get one right, maybe it's 5 cents or 5 million, who knows, but the odds will be better of just trying to guess a single address.

When I transfered  money from a paper wallet into blockchain, I just had to enter a private key.  That's it and it took all the money.  Even if it's a 1000 digit number, you can still have computers guessing.  Odds would go way down if there are 100 billion active numbers out there.

Yeah, I know it would take a million years for a computer to guess a private key, but say in the future will money property.... there are 100 billion private keys.
From most of the it's impossible to guess a private key articles, they're talking about guessing 1 high value key.
What if you don't care which key you're trying to crack.  Don't the odds go way down cus there are 100 billion key possibilities?
I assume this is already answered, I'm just wonder the protection or if the odds are still astronomical.

Please list 100 phone numbers so I can call them and ask.

Yeah, I can summarize the whole thing.  This guy thinks NXT is better than bitcoin and he thinks he knows what every single person in China is thinking.

Not the richest in the world, but they would gain a good amount of money from it.  You can trade based on current USD value.

How much do you think btc would go up if a small country announced it would use it as currency and back their dollars by it?  Would it hit $1 trillion market cap then?  Maybe?  Also at 1 Trillion market cap, it wouldn't be as volatile.  What if the leader of that country also invested 1 Million or more in bitcoins?  There are many selfish reasons why this could happen?  News like this would make the currency skyrocket.  What if a country announced it and then a month later said they're not going to do it.

Now what if they used litecoins or another?  Would that currency then overtake bitcoin?

I want to buy some worldcoins, but I don't trust Cryptsy.  Their website is nice, but there seem to be a lot of fraud complaints.
Who runs this coins-e.com?

I guess another question is does worldcoin solve some speed issues that bitcoin has, or would bitcoin just evolve to solve any future issues?

Well until 1/2 the world money supply is in bitcoins, it would be the number of btc compared to X amount of dollars or something.  There's a company in poland paying their employees in bitcoins if they want. I'm sure it's done in a similar manner.

Yes, but then no one will keep their money in that currency anyway.  People in these poor countries will keep their money in usd, euros or whatever.
By being the 1st country to do this, there's a good chance the bitcoin price will keep going up and they can even pay their workers less money as time goes on.
If they pay their government workers in their own currency, they have to keep giving them raises to keep up with inflation.

Yes, they won't control the money supply, but what's the use of printing money that no-one uses.  Their economy would be better off and if all major transactions were done in bitcoin, less fraud, faster transactions...  I'm not saying every small country will want to do this.  It only takes 1.  Or it could be a city that has it's own currency.

Well this isn't speculation.  If a small country made bitcoin it's official currency and backed some paper made bills with it, the price of bitcoins would skyrocket.  The 10 billion Market Cap of bitcoin might go up to a trillion on that news.
This could be enough of an incentive for a country (Or a group of rich people) to do this.

As for the poor countries obligations, if they can't pay people, they can't pay people.  What good is printing more useless money anyway.

The real value will come in another year or two when all these start up companies based around bitcoin make apps, transactions and wallets easier.

This can all be figured out, but the country can back it's paper money with bitcoin.  One would bring the paper money up to a government office with key and the government would then transfer a bitcoin amount to the address.  As for what the country will buy with.  They will have the initial $100 billion they bought worth of bitcoins.  Back the money with that 100 billion.  They can't print more money unless they buy more bitcoins first.

Yes, that's how small poor country could do it.  The government would exchange the paper bill for a bitcoin amount.  That would stop out of control inflation.

What obligations?  They just got $100 billion.

If you did buy it and make bitcoin the national currency, would bitcoin then have to be treated like a currency by governments?