19

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?

25

It's impossible to say for sure what's a vanity address and what's generated purely at random, but 1CFBdvaiZgZPTZERqnezAtDQJuGHKoHSzg is 34 characters with no digits in it other than the initial '1'. That may well be a vanity address. Then again on average 1 in every 515 34-character addresses you generate won't have any digits in them other than the leading 1, so possibly not.

The address with the longest initial list of lower-case letters is 1yaniraswqyghuJKCRrGwJUA2HakWtRad, and is clearly a vanity address since it appears in the same transaction as many other vanity addresses.

Edit: I just found this one:

1QBDLYTDFHHZAABYSKGKPWKLSXZWCCJQBX

It belongs to etotheipi, author of the Armory Bitcoin Client, and was found using vanitygen, as he said in a bitcointalk forum post:

Yessir! I got a little crazy with vanitygen and succeeded. It should've taken about 70 days of computation time but I got lucky and found it in about a week... (notice no digits either, only uppercase letters).

Unfortunately, it's so cool that people don't even recognize it as a Bitcoin address :)

  • My client just generated this address 1NCEERKDRMZD7LbkRYe3FPXDqridjbWxHe which has a 11 caps in the beginning. – Jus12 Mar 21 '15 at 17:21
8

There's this thread on bitcoin talk:

https://bitcointalk.org/index.php?topic=90982.0

I personally generated this address: 1BoyishnessfwHq3wSkCkJ7iafUdjhghfU which is the longest one I'm aware of that's not mixed case. It was generated by feeding oclvanitygen a large number of potential prefixes from a large wordlist.

  • If you're accepting multiple addresses, isn't that... cheating? In that sense, the bitcoin address 1QBDLYTDFHHZAABYSKGKPWKLSXZWCCJQBX is the longest vanity address generated. – Nick ODell Jun 4 '13 at 5:17
  • 3
    Cheating on what rules? The question is too vague; strictly all vanity addresses are the same length. – jorijnsmit Jul 16 '14 at 9:44
1

Here is one we created for our nonprofit. hugpuddle.org it took several months for us to find it. 1HuGpUDDLEhvehXE1P6xeudqAHqKfs1BFM

1

Here's what vanity address I generated:

1DETACHABLEDD7hgExqScWngMrxDGtXwcX

This is the real word. All characters in the pattern are uppercase. The length of the pattern is 11 characters.

1

GEnesisReVC

1GEnesisReVCQG641yERVQgStUvqH6S9U2

On Mac Pro with GPU it was 9 days to have 50% chance of genesisre (not case sensitive)

Was using https://github.com/exploitagency/vanitygen-plus

What I really like about this address:

  • capitalization of GEnesisRe
  • VC suffix
  • memorable U2 ending
  • capitalization right after VC
  • capitalization just before U2

OK, so right now time to raise some money and open a VC fund investing in regenerative communities - independent food, energy, water production and focus on education and new post-scarcity paradigm economy.


EDIT / UPDATE: Out of curiosity tried running the command as if I was to bruteforce it with the exact capitalisation:

./oclvanitygen -d 1 1GEnesisReVC Difficulty: 9883693997182075238 [20.44 Mkey/s][total 398458880][Prob 0.0%][50% in 10630.3y]

With -i (case insensitive):

./oclvanitygen -d 1 -i 1GEnesisReVC Difficulty: 18982355007608803 [19.72 Mkey/s][total 230686720][Prob 0.0%][50% in 21.2y]

Bottom line - got lucky, incredibly lucky.

0

"Then again on average 1 in every 515 34-character addresses you generate won't have any digits in them other than the leading 1"

I think it's 1 in every 261 34 char BTC addresses. It's because there are only 9 numbers available (0 not base 58 conform): (58/49)³³ = 261.007...

One can create easily long vanity addresses like someone did with this one: 1FuckYouFuckYouFuckYouFuckYouz76RT However, the creator cannot create the priv key so money send to those addresses aren't spendable.

Some other Bitcoin-Vanity addresses:

  • 1LitecoiniwdBzUR84opxNeDggcTxHZwC
  • 1RiPPLESiHh1vAKf2vfZDJfDQJ73UZpNb
  • 1MoNEro159num18KshmWozz7bzW3cZaH5y
  • 1steLLarZSNHpMG2JeJx2LoyDQJHDY6RC
  • 1Zcash1bw9DNTbDkqaB67uYme44eEmtp6
  • 1Dash1Fu4orcgsJKFozDJiDy2b1bub2Qdx
  • 1EtherC5LahniSffzNqKKjT6DNiqcyaTFe

How to explain a newcomer that these are Bitcoin addresses ;-)

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