# Tag Info

### Difficulty in obtaining vanity Bitcoin addresses

The probabilities are detailed here: https://en.bitcoin.it/wiki/Vanitygen#Difficulty_of_finding_a_vanity "The difficult of finding a vanity address depends on its exact structure (leading letters ...
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Questions about altcoins are off-topic here, but the answer is essentially universal: if you re-use addresses, especially because of a desire to think of them as a long-term identity, you're ...
• 102k
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### What's the point of Bitcoin eaters?

I'd assume it's just so people reading the docs won't try to "tip" the writer and send to a foobar address that was made up for the sake of example That is correct! Other than that, there is no ...
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### Best way to calculate difficulty of generating specific vanity address?

So things turned out to be a little bit different. But now i have a solution, that seems to be workable and adequate. Original task was to calculate difficult of finding specific vanity address (like ...
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### What is it mean Difficuly & prob when using vanitygen?

Difficulty tells you how likely it is that vanitygen will be able to find the address pattern you're looking for on the next guess. A value of 2n is twice as difficult (half as likely) than a value of ...
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### What's the point of Bitcoin eaters?

The point is that someone obviously made up the sentence and then adapted the last few places to make it adhere to the checksum test, i.e. it is a valid Bitcoin address. On the other hand, it's ...
• 72.6k
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### Difficulty in obtaining vanity Bitcoin addresses

It is better to explain by example: We need to find a vanity address with the prefix "1Love". The minimum address with this prefix is "1Love1111...1111+ControlSum" and this corresponds to the number ...

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

Vanitygen has a regex option, for generating addresses that match an arbitrary regular expression. I think that vanitygen -r '^1Bit.*Bit\$' would work. Note that it will not be able to estimate the ...

### How to generate a zcash vanity address?

To simply generate a new main network address, you can use the official zcash-cli like that: \$ zcash-cli getnewaddress t1fMAAnYrpwt1HQ8ZqxeFqVSSi6PQjwTLUm Or: \$ zcash-cli z_getnewaddress ...
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Gap Limits I want to just smash the button until I find an address with some aesthetic/memorable strings. But I have no idea if this is a bad idea, wastes resources, That could create problems when ...
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### Are vanity addresses Vanitygen generated really safe to use?

The key point here is that vanitygen is not deterministic - It relies on entropy provided by the system it is running on, which is why running it multiple times with the same pattern will produce ...
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Simple website to create burn address http://gobittest.appspot.com/ProofOfBurn If you want a script try this https://gist.github.com/CoinWhisperer/6d673f1f3d13da1611cd
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### How do I get a vanity address from a hierarchal deterministic wallet?

You can do this but the advantage of HD wallets effectively diminishes. You can simply brute force by iterating over all the indices of the HD wallet until you find one that has the vanity ...
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### How do we create funny segwit v1 taproot bech32m addresses?

These outputs are not spent, so quite possibly, they're addresses that nobody has the private key (and/or scripts) to. If so, that's trivial: put whatever string you like in the non-checksum part of ...
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### What is the longest known vanity address generated?

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.
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Yes, that's possible. In fact, the party that creates the address is the only one who needs to agree on the character sequence. Suppose you have an address that can be spent with 2-of-3 multisig. ...
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### 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? If a billion supercomputers each tried a billion keys per second ...
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### how to generate SECRET_KEY prefix?

Addresses and private keys are encoded using Base58Check Encoding. The prefix bytes are chosen such that once whatever you are encoding is actual encoded with Base58Check Encoding, you will end up ...
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### How did they generate these vanity addresses with 27 predetermined characters?

Your observation is correct and indeed those addresses cannot be generated by vanity address generator in a reasonable amount of time. Most likely, there is no secret key corresponding to that address ...
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### How do bitcoin vanity generator work?

They work by brute force. As a private key is essentially a very large random number, and the encoding process from a public key to an address goes through a couple of hashing steps, the relation ...
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### How do extremely difficult vanity addresses get found in the first place?

Funds are spendable by public keys and addresses contain public key hashes. Vanity addresses are created by hashing lots of public keys until the hash is in an expected range. What you mentioned is an ...
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How can the generation of a vanity address be accelerated?. By applying better hardware, faster CPU and GPU hardware. Or more of them. How can the brute-force algorithm be improved beyond trying a ...
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### Probability of Generating a Bitcoin Address with Specific Starting and Ending Characters

base58check For addresses that use base58check, only the first character is a prefix, and each other character encodes one of 58 values. To generate an address that matches at least the first four and ...
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1 vote
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### Can you make altcoin vanity addresses out of those of Bitcoin?

I want to make such ones for other coins, too. If I could make altcoin vanity addresses of the same key pair preserving the “TEST,” that would save some computational resources for me. This would ...
• 16.9k
1 vote

### how to generate SECRET_KEY prefix?

hmm, not sure what you are asking. Normally you have a private key in hex chars. When you do a base58 encoding, you use hex 0x80 as prefix, which results in "K" or "L" at the beginning of the so ...
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1 vote

### What's the point of Bitcoin eaters?

https://en.bitcoin.it/wiki/Vanitygen Theres no guarantee these addresses are made up .... Of course, bitcoin eater addresses are around since the early days - but why not exploit it :) Back then it ...
• 664
1 vote
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### How to encode a string into a bitcoin address? (Not a brain-wallet, an address, like a vanity-address)

I had a couple errors. The first byte of aaaaaaaaaaaaaaaaaaaaa should be a version number, which can be 0. 0aaaaaaaaaaaaaaaaaaaa. The hash is appended to the end of the string, not the beginning. ...
1 vote
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### Private key only wallet for Bitcoin Core regtest

As of Bitcoin Core v18 and later, it is possible to create a blank wallet with no keys in it. You can then import the single key you wish to use. It can be imported as a descriptor (with ...
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1 vote

### Adding an external key pair to a local bitcoinj wallet

After searching for a while I found this type that takes a private key (in base58), required network parameters, and constructs the public address. Please refer: DumpedPrivateKey. This was enough for ...
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1 vote
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### Vanitygen: How ot store all generated addresses?

./vanitygen -k 1 -o output.txt will generate addressses until you stop it, and will save the addresses to output.txt. It won't be formatted, so it's a better idea to use Vanitygen Plus's -z option, ...
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