It can be encoded in a number of different formats. The format of the exported private key is determined by whether the address was generated in an old or new wallet.
Helpful tips organized in ascending degrees of paranoia Keeping it Safe The biggest threat to your wallet isn't an evil WiFi packet-sniffing robot. Your worst enemy is water. If you have access to a laser printer, use it—because laser printers melt waterproof plastic toner onto paper instead of using ink.
When using an inkjet printer, consider storing your wallet in a zip-sealing plastic bag like those sold on this site or printing on waterproof paperor treating the paper with a clear coat spray like Krylon "Preserve It". Treat a paper wallet like cash. If you lose it or if it becomes illegible, the coins are gone forever.
Even the condensation from the outside of a glass set on top of an inkjet print can destroy it. Here's what a tiny bit of water will do to an inkjet-printed wallet: Many online services e.
Plan on importing your entire balance. Afterwards, discontinue using the paper wallet—as if you were breaking open a piggy bank. If you try to spend or withdraw only a portion of your funds, you risk losing the remaining balance forever.
Add funds to your wallet as often as you like, but withdraw them all at once—otherwise your balance may disappear forever. Going Offline Your wallet may be vulnerable to prying eyes when you are generating the keys and printing them out.
How to run this wallet generator offline You can order the Ubuntu LiveCD from this site which comes with the wallet generator securely pre-installed OR: Turn off your Internet connection.
Power off the modem! Print out your wallet s. Reboot your computer and power cycle your printer before going back online. If a hacker or virus gets into your computer and knows to look for these cache files, then they can get your private keys and "sweep" your wallets. Here are some tips on how to securely delete your printer "spool" files.
Learn how to delete your printer cache files after printing secure documents. How to delete pesky printer cache files Macintosh: Enable 'FileVault' to encrypt your filesystem so that cache files cannot be 'undeleted'.
Use an encrypted filesystem so that your cache files cannot be 'undeleted'. Read this FAQ on how to change the destination of your cache spool files to removable media.
Use a live-boot CD instead of a regular hard drive OS install. This way when you reboot your computer, all cache files are deleted from memory and no jobs are ever written to disk. Hey, do you know much about printer spools on your operating system?
I need your help for this section! Never take that install online. Using a Dumb Printer Some advanced printers have internal storage even hard drives that preserve copies of printouts. This is a risk if someone gets access to your printer, or if you dispose of your printer.Wallet: A multisig wallet could be used to create secure offline storage with paper wallets or hardware wallets.
Users should already backup their offline Bitcoin holdings in multiple locations, and multisig helps add another level of security. Over the next few weeks, kaja-net.com is hosting a paper wallet design contest to create a beautiful cold storage visual graphic for bitcoin enthusiasts around the world.
A bitcoin paper wallet is simply a public and private key printed together. It is an offline wallet, and is usually regarded as a type of “cold storage” (extra-secure storage that does not.
Physical randomness is better than computer generated pseudo-randomness. OFFLINE Paper Wallet: Your wallet and your bitcoins are physically at your disposal thanks to QR codes and your private key, once your wallet is printed with a secure computer and printer.
You are in full possession of your bitcoin, no one can hack your Bitcoin, like real banknotes, you have your funds permanently and you are the only holder. Bitcoin cold storage is achieved when Bitcoin private keys are created and stored in a secure offline environment.
Cold storage is important for anyone with bitcoin holdings.