9 votes

How can you extract private keys from MultiBit HD?

WARNING: While this answer may be a solution to the issue in the question, it involves exposing your wallet seed to a tool on the internet. Please be very careful when doing this! Can't add comments ...
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  • 91
8 votes

Export wallet from Multibit to Electrum

In the current version 2.8.3 of Electrum it's very easy to import Multibit wallets (meaning, migrating from Multibit to Electrum). An important reason to migrate is because Multibit (not HD but the ...
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  • 181
8 votes

How can you extract private keys from MultiBit HD?

In case you have a beta7 wallet which is not BIP32 compliant you cannot use the method @chris-j has put forward. The easiest way for me was to hook into MultiBit HD's signing capabilities and log the ...
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  • 81
6 votes

Coins sent to unknown address in Multibit

(I am one of the MultiBit devs). The MultiBit code is hosted on multibit.org ONLY. The 'tv' copy is a phishing site. DO NOT USE IT.
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  • 3,335
5 votes

MultiBit Classic wallet gone

Yes your wallet file will be sufficient to recover your Bitcoin if you did not encrypt it with a password. In the future please encrypt your wallet and store backups offline
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4 votes

MultiBit won't open, says "Java not installed"

Define a JAVA_HOME environment variable with the path to your jre/jdk installation in it. That worked for me.
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4 votes

Coins sent to unknown address in Multibit

I can confirm that the "MultiBit" software downloadable from MultiBit.tv is a trojan. The version I downloaded seems to be slightly different than OP's, but similar. After decompiling the trojan, I ...
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4 votes

Why new public key for every new request?

The reason is privacy. If you reuse the same key for every transaction, everyone who ever transacts with you can infer your entire balance. No, public keys should not be identities, exactly because ...
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4 votes

How do I restore a Multibit HD wallet from a backup using only a password?

MultiBit HD dev here. The mbhd-*.zip.aes backup files are encrypted using an AES key derived from the wallet words. Hence you need your wallet words to do a restore from one of these. The wallet ...
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  • 3,335
4 votes

How can you extract private keys from MultiBit HD?

Because the private keys and addresses are created deterministically from your wallet words you just need to keep your wallet words safe - there is no need to expose individual private keys. You can ...
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  • 3,335
4 votes
Accepted

How do I restore my Multibit wallet without seed words?

In 2013, MultiBit was not using Hierachal Deterministic (HD) wallets. The latest version is MultiBit HD. If you want to use the older version you can use MultiBit Classic and that should let you ...
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  • 5,233
4 votes

Bitcoin Cash Multibit HD/Electrum

Here is what you need to do. Make sure you have the seed from multibit. Download http://www.electroncash.org/ You create a new wallet, select I already have seed, when you type seed you need to ...
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3 votes

Multibit: Whats the best way to proceed if I have forgotten my password but my wallet is still open

Multibit will prompt you for a password regardless of whether you are sending it to your own wallet or not. This is by design, since if it didn't do this, it would allow anyone who can access your ...
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  • 2,062
3 votes

To open “MultiBit” you need to install the legacy Java SE 6 runtime

if you are using OS X, you can just double click /Applications/MultiBit.app/Contents/Resources/Java/multibit-exe.jar works on OS X 10.10.1, Java 7 Update 71. guess they need some minor adjust for ...
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3 votes
Accepted

What does it mean to "password protect" your wallet on Multibit?

Your wallet.dat file contains your private key. By default this is saved in clear text. Meaning that anybody who gets a hold of this file, could see the private key and therefore spend your money. ...
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  • 5,124
3 votes
Accepted

How to decrypt a MultiBit private key?

The process to decrypt a password protected .key file exported using MultiBit is explained here: https://github.com/jim618/multibit/wiki/Export%20and%20limited%20import%20of%20private%20keys To ...
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  • 5,124
3 votes

Deleted wallet and missing coins

Coins are gone when you can't recover your private key. If you have used a non hd wallet (and i think you did), you can check if your bitcoin wallet supports keypools. Keypools are a set of pre-...
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3 votes

How can you extract private keys from MultiBit HD?

WARNING: While this answer may be a solution to the issue in the question, it involves exposing your wallet seed to a tool on the internet. Please be very careful when doing this, since ...just DON'...
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  • 57
3 votes

Upgrading from classic to hd

MultiBit developer here. You should be able to simply spend from your Classic wallet into your new HD wallet. Don't try moving private keys around - that's really easy to get wrong and is one of the ...
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  • 7,513
3 votes
Accepted

Problems in recovering from a seed of Multibit HD

The default MultiBit HD wallet uses an address generation scheme known as BIP32. Mycelium uses an address generation scheme known as BIP44. BIP44 is what Trezor uses. HD wallet interoperability is ...
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  • 3,335
3 votes

MULTIBIT: How to restore wallet with following information?

The MultiBit HD wallet can be restored with just the seed words. Click "Restore" on the unlock screen and follow the instructions.
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  • 131
3 votes

Transactions seen by peers, but not confirming

Okay, some observations: MultiBit Classic 5.16 is more than two years old. The transaction you mentioned doesn't appear on either blockexplorer.com, blocktrail.com or blockchain.info. It seems that ...
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  • 64.5k
3 votes

Wallet balance showing as unconfirmed - SOLVED!

My problem was easily solved, I simply had to Repair Wallet - an option in the Manage Wallet sidebar choice. All fixed!
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  • 79
3 votes

Can I recover my seed words?

Multibit 0.5.14 is a MultiBit classic version which does not have seed words and does not support Hierarchical Deterministic wallets. So long as you know the password to your wallet and you have an up ...
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  • 62.3k
3 votes
Accepted

MultiBit with multiple addresses to Electrum

go to Tools-> Export Private Keys After you find the .key file, open it in a text editor. The key file should start with the line: “KEEP YOUR PRIVATE KEYS SAFE !” The keys start at the last # line
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  • 319
2 votes
Accepted

Multibit security with regards to "backup" folders

wallet-unenc-backup contains the backups that were created before you set a password. Since MultiBit creates a backup each time it adds a key, and it doesn't seem possible for a wallet to be encrypted ...
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  • 373
2 votes

Can I use Multibit private key for paper wallet?

Yes, writing your MultiBit (non-HD) private keys on paper should work. You definitely need to write down the private keys corresponding to public addresses that have a positive balance. You also ...
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  • 883
2 votes

How do I set the transaction fee in Multibit?

I recently tried to modify the wallet but the maven build did not work because many of the google code repositories are now offline. What eventually worked for me was the following. Extracted the ...
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2 votes

How do I set the transaction fee in Multibit?

As of Multibit Classic 0.5.19 (last in the series) you can now do this. However, the max transaction fee ratio is too low for today's market and miners! If you want to spend out of this client, even ...
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2 votes

Are there any clients that allow for multiple wallets and API acccess?

The wallet that I develop, Coinomi, has a core library (java based) that could be used to host 9 cryptocurrencies at the moment. The private keys are always stored on the client and not on the ...
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