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Counting Sand and Bitcoin Addresses (i.imgur.com)

almutasim が 投稿

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[–]almutasim[S] 5ポイント6ポイント  (6子コメント)

Rationale: There are (approximately) 7.5 x 1018 grains of sand on Earth

(http://www.npr.org/sections/krulwich/2012/09/17/161096233/which-is-greater-the-number-of-sand-grains-on-earth-or-stars-in-the-sky), and there are

2160 = 1.46 x 1048 Bitcoin addresses. The number of Bitcoin addresses divided by the number of grains of sand squared gives 26 billion.

[–]Zaromet 0ポイント1ポイント  (0子コメント)

I thought it is just number of grains of sends on earths you get from creating earths from grains of send on earth. It is still astronomical number but that makes the number even bigger...

Thanks for this info.

[–]Zaromet 1ポイント2ポイント  (1子コメント)

What happens if we add multisig? Times two?

[–]Rf3csWxLwQyH1OwZhi 1ポイント2ポイント  (0子コメント)

Yes, there are another 2160 multisig addresses.

[–]crawlingfasta 0ポイント1ポイント  (0子コメント)

Now how many Suns worth of energy would it take to generate the key to all of those addresses?

[–]ero79 -1ポイント0ポイント  (0子コメント)

half-life 3 confirmed?

[–]pinhead26 3ポイント4ポイント  (1子コメント)

and ONE of those grains of sands, on one of those earths, is the brainwallet: "cat"

[–]benperrin117 1ポイント2ポイント  (0子コメント)

This gave me a good chuckle.

[–]IamAlso_u_grahvity 7ポイント8ポイント  (3子コメント)

And yet I still find myself, every now and then, clicking on a few random addresses on http://directory.io/

[–]drivindabus 4ポイント5ポイント  (2子コメント)

Man, I remember how people flipped the eff out when that site came online. BITCOIN IS OVER! IT'S ALL BEEN HACKED! lololol

[–]IamAlso_u_grahvity 2ポイント3ポイント  (1子コメント)

Does boggle the mind a bit. I wonder how much computing power is thrown behind sweeping as many addresses possible on that list. There's got to be a few old GPUs cranking away on it.

[–]Zaromet 2ポイント3ポイント  (0子コメント)

Multisig not affected :)

[–]dmdeemer 3ポイント4ポイント  (0子コメント)

But only one if you use the wrong version of Blockchain.info on the wrong version of Android.

[–]BitcoinOdyssey 1ポイント2ポイント  (0子コメント)

It is hard to believe...I mean...

[–]DogeGovernment 1ポイント2ポイント  (2子コメント)

But dont u think IT will happen at least once? Its impossible for use to have the same gmail address but not the same bitcoin address.

[–]kynek99 0ポイント1ポイント  (1子コメント)

Do you think it's possible for two random people on the Earth to pick the some grain of sand form the ground form only Sahara's area in their lifetime ?

[–]Yeah-BUDDY 0ポイント1ポイント  (0子コメント)

Yes. Of course it is possible.

The word you are looking for is 'Likely'

[–]rain-is-wet 0ポイント1ポイント  (2子コメント)

If all the hash power of the Bitcoin network was dedicated to produce Bitcoin addresses, how long would it take them to get the all resolved?

[–]PotatoBadger 0ポイント1ポイント  (0子コメント)

Time isn't a very appropriate measure. You should be asking how many stars you would need to fully harvest. The amount of energy to do the calculations is astronomical, even if you had the most efficient computer allowed by physics.

[–]kynek99 0ポイント1ポイント  (0子コメント)

You can't do that because you wouldn't have enough storage to check and record all possible addresses. We have not enough sand on the Earth to produce transistors to build enough storage to keep that data at the current technology level.

[–]melbustus 0ポイント1ポイント  (1子コメント)

But how many football fields is it?

[–]kynek99 0ポイント1ポイント  (0子コメント)

Usually there is no sand on football fields :)

[–]FMiB 0ポイント1ポイント  (0子コメント)

Banana for scale please!

[–]jacek666 0ポイント1ポイント  (0子コメント)

that's pretty convoluted.