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Imagine that there are two really strong computers that try to find an address starting with 1ABCDEFGH. Is there a possibility does that two computer find the same private key?

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You have enough entropy in Bitcoin private keys to make this possibility extremely unlikely (just like with non-vanity address).

A nice chapter on vanity addresses (their generation, security etc) can be found at: http://chimera.labs.oreilly.com/books/1234000001802/ch04.html#_vanity_addresses.

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Theres a possibility, its still unlikely.

heres a couple of attempts. Not quite as many characters since it will take to long.

1AbcDeF22LQFTudvxEPzPUo4LQsNLVUUGT

1ABcDefEJv156aq32SmQo8aU4EVPHqwxV4

Case sensitive will take longer.

1ABCDEkreuP3HqnqEivk8NQzLw5afz3mXW

http://directory.io/ has a list of all bitcoin public/private keys

still looking for an atom in the galaxy.

  • Wait, I thought directory.io was fake? directory.io/faq Here it says its a joke. – MCCCS Jul 16 '16 at 8:20
  • @MCCCS it is a joke, but the data generated is real. It's just proving a point that being able to generate the data doesn't really help you, there are still so many addresses that it's impossible to search. – morsecoder Jul 18 '16 at 16:29

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