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 ...
25
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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 ...
19
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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?
13
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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
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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 ...
8
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2answers
14k views

For a non-technical person, how do I generate a ECDSA key pair easily?

I want to know because I would like to generate a vanity address at Vanity Pool.
8
votes
1answer
3k views

When importing private keys, will compressed or uncompressed format be used?

I am looking into implementing support for compressed public keys on Vanity Pool. However, I have my concerns about importing solutions into a desired vanity address under that format. From what I can ...
8
votes
1answer
832 views

Why does vanitygen ban certain letters on testnet?

I'm guessing that vanitygen is more strict or has different rules than production's Base58 rules. Why are some of thse names marked not possible? C:\vanitygen>oclvanitygen -k -o gpukeystestout....
7
votes
2answers
1k views

Difficulty in obtaining vanity Bitcoin addresses

What is the formula I can use to estimate the difficulty in generating vanity Bitcoin addresses?
7
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3answers
4k views

What's the point of Bitcoin eaters?

I see some bitcoin documentation sites reference dummy addresses like "1bitcoinEaterAddressDontSend32425663" or something made up like that. I'd assume it's just so people reading the docs won't try ...
7
votes
1answer
553 views

Generating addresses starting with certain characters such as “JoeAnonymousUserB7pMqyVa8JRcpZdCQLQ”

Similar to how the SHA256 hash competition exists to validate a transaction, I wonder if this concept can be ported to addresses, so that the first few characters is significant to a human reader. Is ...
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 ...
7
votes
1answer
915 views

Does it hurt the network to reuse addresses?

There is already a question that ask why you shouldn't reuse addresses, but it's about whether or not it's a bad idea for the person who would do the reusing. I understand there are several reasons ...
7
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2answers
8k views

What is vanity address?

I saw lot of questions about vanity addresses, but not sure what is vanity address. Could someone please explain? thanks.
6
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2answers
622 views

Does it take longer to generate an address when I stop and restart vanitygen?

I want to generate a bitcoin address. I start vanitygen, but a power loss occurs. Now I restart vanitygen. How does this affect the time to generate the address?
6
votes
2answers
1k views

Best way to calculate difficulty of generating specific vanity address?

I'm now working at small tool, which purpose is to calculate difficulty (like number of attempts) of getting vanity address, like vanitygen (https://github.com/samr7/vanitygen) does. I've read some ...
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, '...
5
votes
1answer
814 views

Coin address generation for all coins

We are developing UI for coin trading. We have a plan to use all the coins present in coinmarketcap. I am greatly confused how to generate coin address for all coins. I knew that from cryptsy.com, it ...
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
2answers
548 views

Is it possible to create an address from a predefined private key?

I was not sure how to formulate the question title. What I want to achieve is the same as VanityGen and many other tools do to create an address starting with a predefined part, but with private keys. ...
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
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 ...
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 - ...
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
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 ...
4
votes
2answers
791 views

Is there a point to vanity addresses if a new destination address should be created per sender?

There is some advice for merchants to have a unique Bitcoin address for each incoming address. Apparently this will help associate a transaction with a sender. Since it can take a long time to ...
4
votes
1answer
4k views

How to generate a zcash vanity address?

Is the main network address version for zcash already known? Is it possible to generate a mainnet address already? This could allow miners to start from minute 0 to mine on a anonymous pool. The ...
4
votes
1answer
874 views

How to make a vanity throwaway address? Similar to 1BitcoinEaterAddressDontSendf59kuE [duplicate]

I want to write data to the Blockchain, and write to specific addresses. I want to send small amounts of Bitcoin to addresses like this: 1MikesReallyCoolApp<game_id_here>59kuE How can I do ...
4
votes
1answer
306 views

Why does it take a different time to generate a different pattern of the same length in vanitygen?

I've been looking at generating some vanity addresses today, and I found it surprising that the program generating the address predicts that it will take a different amount of tries to compute a ...
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
1answer
453 views

How would one go about generating a BIP-38 encrypted vanity address for cold storage?

I want to generate a vanity address with BIP-38 encryption for a cold storage paper wallet, how would I go about securely making one? From what I've found, generating a vanity address with Vanitygen ...
4
votes
3answers
143 views

What if you wanted to decrease anonymity?

My idea is to be able to build "credit" for an individual. Lenders of BTC could just use a service to check the "credit score" of a certain address of a borrower. The borrower would have to spend a ...
3
votes
1answer
253 views

Is it a bad idea to use a bitcoin wallet address in a domain name or URL?

Aside from it forever being public and kind of marrying a business to a wallet.
3
votes
1answer
641 views

Mnemonic seed BIP 39 HD wallet with vanity address

Can we create a mnemonic seed BIP 39 HD wallet with vanity address for LITECOIN, if yes, how?
3
votes
1answer
387 views

Vanity Mining Error?

Well after getting a new graphics card (7770) I can mine bitcoins at around 120 - 180 Mhash/s Depending if I run it at full power or not. Now I thought I would try and mine myself an address using it ...
3
votes
1answer
490 views

Remove public address from my wallet [duplicate]

I have generated few fancy bitcoin addresses with vanitygen. I was looking on some webpage how-to-add the address into my bitcoin wallet. I accidentally entered the example private key instead of my ...
2
votes
3answers
496 views

If Bitcoin addresses are truely random, then why are some more difficult to generate than others?

In this post TierNolan explains why 'Bitpoin' is much easier to generate than 'bitpoin', and that mainly has to do with the position (first character). But I remember that certain characters (I ...
2
votes
1answer
172 views

What is it mean Difficuly & prob when using vanitygen?

I am running this command $ vanitygen64.exe 1abcdefg Difficulty: 778316249440 [125.17 Kkey/s][total 39015067414][Prob 4.9%][50% in 46.3d] What is it mean Difficulty? I understand that higher takes ...
2
votes
1answer
952 views

How can one generate a vanity Bitcoin address with both a given prefix and suffix?

I want generate a unique Bitcoin address with vanitygen that has both a given prefix and a given suffix: 1Bit******************Bit How would I be able to achieve that?
2
votes
1answer
618 views

Are vanity addresses Vanitygen generated really safe to use?

I’m not talking about whether Vanitygen can crack an any existing wallet or not. I know it is practically impossible, considering the computational resources required. But what if, it’s to crack ...
2
votes
2answers
413 views

Can a multi-sig address also be a vanity address?

If so, do the three separate parties have to agree on the character sequence?
2
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0answers
35 views

bitcoin addresses in one wallet

How do explorers like https://www.walletexplorer.com/ recognize all addresses in one wallet? What is the relationship between addresses in wallet?
2
votes
1answer
173 views

Why is it harder to generate addresses starting with 1s?

Here's a table I got from bitcoin wiki. They say: A special case, leading numbers 1 (one) is especially difficult. But why?
2
votes
0answers
290 views

Vanity address time caclculator

How can I know the time it takes to generate an X letters vanity address given an Y hash rate / cpu power ? Is there any online calculator for this ?
2
votes
1answer
2k views

How do I optimize my usage of oclvanitygen?

I'd like to extract the most performance possible from oclvanitygen. Can anyone tell me what the best practices are with this tool? Examples may include: Use operating system X, or video card Y ...
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: ...
1
vote
1answer
3k views

What does it mean by Public Key on the Vanitygen Pool?

When I wanted to request a vanity address from https://vanitypool.appspot.com/ it asked me for my public key. I tried my main address, but it said it was too short. What should I put there?
1
vote
1answer
84 views

How did they generate these vanity addresses with 27 predetermined characters?

A while ago, I read some news about a huge transaction on the Bitcoin blockchain. The first few addresses used were apparently created with some kind of vanity address generator. One example is ...
1
vote
1answer
485 views

The randomness of vanitygen is secure enough?

If two people running vanitygen 1abcdefg What is the chance that both of the person will get the same public key & private key? I hope that the answer is less than 0.0000001. But for this ...