Questions tagged [vanity-address]

Much like a vanity license plate, an address can also be chosen to include a particular word or series of characters.

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29
votes
9answers
19k views

How can I generate a vanity Bitcoin address?

I once found a program that was capable of creating Bitcoin addresses with specific words in them, but can't find it now. Is there a trusted program, in the Ubuntu repositories for example, that can ...
19
votes
7answers
10k views

What is the longest known vanity address generated?

Anyone can generate a vanity address of arbitrary length with appropriate tools, it's just a matter of performing enough computations. What is the longest known vanity address anyone has generated?
5
votes
3answers
6k views

How to pre-generate 100M bitcoin addresses? [duplicate]

What is the best method to generate large numbers of bitcoin addresses? I imagine something like the following would break bitcoind in some fashion: ./bitcoind keypool=100000000
5
votes
2answers
683 views

How easy is finding related vanity addresses?

Is it easy to find out related vanity address '1googlex' if we already know '1google' vanity address pair, than through usual vanitygen iteration process? if yes, can this be extended further, like, '...
1
vote
1answer
1k views

How would I generate a valid vanity address for destroying coins?

I want to generate very long vanity addresses, with the relaxed constraint that I don't need the corresponding private key, they only need to be valid Bitcoin addresses. How would I do this? Example: ...
4
votes
1answer
1k views

What's the probability of vanity pools causing RIPEMD-160 (public key hash) collisions?

As Bitcoin vanity pools become more popular, the possibility of using that power to derive another person's Base58 public key hash becomes slightly more likely. I'd like to know if anyone has done ...
4
votes
2answers
5k views

OSX Vanitygen error: pattern.c:32:10: fatal error: 'pcre.h' file not found

I get the error below when I try to make vanitygen according to the instructions listed in "install" Error from make (short version) 27 warnings generated. cc -ggdb -O3 -Wall -c -o pattern.o ...
25
votes
3answers
6k views

Can one safely buy vanity addresses from a third party without risking one's coins from being stolen?

One can easily generate vanity addresses for Bitcoin, but they can take quite awhile to generate. Outsourcing that process to someone with a strong mining rig is an option, but then one runs into the ...
4
votes
1answer
472 views

Are there any combination of letters that a namecoin address cannot start with?

It recently came to my attention that some Namecoin addresses might not be generated at all (see https://bitcointalk.org/index.php?topic=84569.msg1370025#msg1370025 ). Namely, there are issues with ...
13
votes
1answer
5k views

How can I use the vanity name generator to look for an address?

How do you use the vanity name generator to look for an address? Is there an estimate on how long it takes to find addresses of varying lengths and complexities?
11
votes
2answers
2k views

How many bitcoins have been sent to Base58-invalid addresses?

Some bitcoins have been permanently lost when they are sent the the following addresses. The explanation I've found is that they contain characters that are invalid in Base58 ...
7
votes
1answer
4k views

How fast can one generate Bitcoin addresses?

Seeing as the topic of generating address conflicts comes up every now and then, I am wondering if someone looked into the problem a bit further. Has anyone measured the speed at which Bitcoin ...
5
votes
1answer
576 views

How to determine valid vanity address prefixes for any starting net byte?

Question inspired by this. There are some combinations letters that will never produce a valid vanity address prefix for various network bytes. For example, for net byte of 52 (Namecoin), one cannot ...
5
votes
1answer
513 views

How to find the shortest unused FirstBits?

I am interested in generating a bitcoin address with the shortest possible FirstBits. By random trial and error I found that 1ijj1 is untaken. Is there a way to find the shortest possible untaken ...
4
votes
3answers
449 views

Alternative uses for last five decimal places of an individual Bitcoin (0.000xxxxx)

At the current conversion rates only the first three decimal points of an individual Bitcoin can be exchanged for a USD equivalent. e.g. 0.002 BTC equals 2 USD cents. That opens up possibilities for ...
4
votes
3answers
4k views

what are the chances of vanitygen address - private key pair collision?

With no random number seed specified, assuming all vanitygen runs start with specific chunk for iteration, what are the possibilities of two different vanitygen runs to end up with the same address - ...
1
vote
2answers
485 views

Vanity generator

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?