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All Bitcoin private keys are on this website

playxo.com

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Re: All Bitcoin private keys are on this website

#31

Post by [deleted] »

berkes wrote: post #24
tromp wrote: post #19

Earlier quoted context omitted.

If you check 1 billion addresses a second, and there are 100 million addresses with a balance, then it would take on average roughly (2^256 / 10^8) * 10^-9 seconds, which is 36717430630808027468154168254911183362909051 billion years. EDIT: Only 463439129036942 billion years, taking into account that there are effectively only 2^160 addresses.

Is that the average time until the first collision, or the time it will take to generate all possible private keys?

[deleted]

Re: All Bitcoin private keys are on this website

#32

Post by andy_ppp »

sdan wrote: post #13
frisco wrote: post #2

This raises a really interesting question. Though it’s essentially impossible to figure out the key for any given wallet… if you download the blockchain and generate private keys as fast as you can, how often do you find one that has a balance? Will there just be some ongoing very low but decidedly nonzero risk of all of your assets vanishing some day if you’re not using multisig?

its like asking if you had a rocketship that traveled at the speed of light, how long until you find earth given you're on some random galaxy

Not really because if you are travelling at the speed of light time isn't passing...

Re: All Bitcoin private keys are on this website

#33

Post by wruza »

tromp wrote: post #19
frisco wrote: post #2

This raises a really interesting question. Though it’s essentially impossible to figure out the key for any given wallet… if you download the blockchain and generate private keys as fast as you can, how often do you find one that has a balance? Will there just be some ongoing very low but decidedly nonzero risk of all of your assets vanishing some day if you’re not using multisig?

If you check 1 billion addresses a second, and there are 100 million addresses with a balance, then it would take on average roughly (2^256 / 10^8) * 10^-9 seconds, which is 36717430630808027468154168254911183362909051 billion years. EDIT: Only 463439129036942 billion years, taking into account that there are effectively only 2^160 addresses.

Now that it looks like a phone number, one could unleash a horde of telemarketers at it.

Re: All Bitcoin private keys are on this website

#34

Post by ORioN63 »

john_alan wrote: post #6
tromp wrote: post #4

Curiously, after hitting a random page and >> twice, I came upon this page https://playxo.com/bitcoin/904625697166532776746648320380374... that had several keys in use in the past. I would expect this website, in the rare event of discovering some positive balance, to try spending it right away...

Hey John - I came here to ask the same question. How is that possible. Same happened to me. >> leads to the "end" page, it's not as I though a "big jump" from some random page... thus I suspect it's simply addresses that are low entropy, at the end of the range.

They're the trivial wallet addresses (close to the beginning and end of the search space). I would expect them to be used for debugging and testing in the early days.

Re: All Bitcoin private keys are on this website

#35

Post by frisco »

tromp wrote: post #19
frisco wrote: post #2

This raises a really interesting question. Though it’s essentially impossible to figure out the key for any given wallet… if you download the blockchain and generate private keys as fast as you can, how often do you find one that has a balance? Will there just be some ongoing very low but decidedly nonzero risk of all of your assets vanishing some day if you’re not using multisig?

If you check 1 billion addresses a second, and there are 100 million addresses with a balance, then it would take on average roughly (2^256 / 10^8) * 10^-9 seconds, which is 36717430630808027468154168254911183362909051 billion years. EDIT: Only 463439129036942 billion years, taking into account that there are effectively only 2^160 addresses.

You could check a lot more than 1B address per second.

Re: All Bitcoin private keys are on this website

#40

Post by nielsole »

sudhirj wrote: post #21

Obligatory reminder about the birthday problem - the probability that someone birthday is a particular day is 1/365, but the chances of two people in a group of 30 having the same birthday is very high - because the universe has so many combinations of people to work with. The chances of hitting a particular wallet you want to hack are 1/2^256 or some absurdly minuscule number, but the chances of hitting some wallet…

Even if there were 10^18 wallets your chance of finding any private key is effectively zero
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