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Dogecoin Paper Wallet Github For Mac카테고리 없음 2020. 2. 10. 10:27
Download the Bitcoin.com Wallet, A simple, secure way to send and receive bitcoin. Available for iOS, Android, Mac, Windows, and Linux.
- Feb 13, 2014 - Make your paper wallet using a complex, but impossible to forget password. Ideally it is 16+ characters + numbers and punctuation.
- Generate a new wallet by clicking on the 'Generate' button. Print your new wallet by clicking on the 'Print' button. Keep your paper wallet in a secure location. Public Address is used to receive or deposit funds to this paper wallet. You can share the address with others. Private key is used to spend funds stored in this wallet.
Dogecoin Core 1.10 is out now: As always, please BACK UP YOUR WALLET BEFORE YOU UPGRADE. We've had zero problems with upgrades so far, but still, just to be safe. You will have to reindex on first run of Dogecoin Core 1.10, which will take 2-3 hours.
I suggest running it overnight. If you use the QT (graphical) client, it will prompt you. If you run the daemon, use the '-reindex' option when you launch to start the reindex process. Again, this only has to be done once while the index format is updated to add more sanity checks. Your wallet balance will reflect the blocks that have been reindexed, while the process runs, don't panic. Do not attempt to send coins while the reindex runs, however, or you may find you've sent invalid transactions. This is a major update and a critical security update.
If you use Dogecoin Core, you MUST update to 1.10 to remain secure. If you for whatever reason absolutely cannot update (i.e. Cannot take a service down to reindex) you can use Dogecoin Core 1.8.3, which contains the most critical fixes:. Even then, we highly recommend updating later if at all possible. This release includes all of the changes in Bitcoin Core 0.9 and 0.10, including a huge speed boost to download/sync, a broad range of security fixes, and the framework for future improvements such as blockchain trimming and smart contracts (yes, you read that right, smart contracts). Release notes for those are at and respectively. If you're an individual user please update NOW.
If you're a merchant, exchange, payment processor or service provider, please test and update as soon as possible. If you're a miner, please update after the 17th so we have time for the new client to be deployed. This update introduces version 3 blocks (BIP 66 for those who know what that is), which are part of the security fixes, and the more clients update before they're mined, the easier the rollout will be. To re-iterate - seriously, you need to update.
This client has been in testing for literal months, it's stable, there isn't another update just around the corner, get this one. Lastly, for anyone who wants to run a Dogeparty wallet server (mostly this means /u/coinwarp), there's a modified version of 1.10 with extensions to support Dogeparty wallets. Unless you need this version (i.e.
Someone tells you you need it), just get 1.10 from above instead. If you do need it, it's at. The second beta of Dogecoin Core 1.10 is now out: Dogecoin 1.10 is a complete rebuild based on Bitcoin 0.11. This means in terms of the code-base we introduced all the changes between Bitcoin 0.9 and 0.11 into this version of Dogecoin Core. We therefore suggest to read the release notes of both Bitcoin 0.10 and Bitcoin 0.11: and respectively Upgrading To upgrade from any version below 1.10 you will need to re-index once, as the block database format has changed.
If you run the Qt GUI client, it will prompt you to do so on the first start after the update. If you run a dogecoind daemon, you will need to start it with the parameter -reindexonce after you updated. This process can take a few hours, depending on the performance of your machine. Mining For this beta release, we decided to disable AuxPoW mining, while further testing is completed.
The functionality will be re-enabled in a later release candidate. Notable changes For further explanation of these, see the above mentioned Bitcoin release notes. Faster synchronization Dogecoin Core 1.10 introduces headers-first and parallel block synchronization to greatly reduce the initial blockchain synchronization time.
Watch only address support It is now possible to add public keys to your wallet that will be held in a 'watch only' state. This means you will get information about incoming/outgoing transactions and resulting balance changes. Especially useful to keep track of your paper wallets. Strict signature encoding (BIP66) One of the reasons why mining is disabled on this release is the introduction of BIP66 which enforces strict rules about how transaction signatures are encoded and therefore will introduce a new block version (3). These rules will only activate once a certain number of blocks are mined with this new version. To not let this happen too early, mining is disabled for now.
NOTE: This isnot a hard fork, as all existing wallets will accept version 3 blocks, although they'll fail to enforce the new requirements. Block file pruning It is possible to run a Dogecoin node without keeping the full blockchain on your disk.
This is currently incompatible with having a wallet on that client due to the fact that some actions regarding a wallet require the full block data. The minimum amount of kept blocks has been changed from Bitcoin to reflect our shorter block times. General comments Please backup your wallet regularly and especially before performing this upgrade. Do not copy your wallet.dat while Dogecoin Core is open. Instead you should either use the backup feature you find in the 'File' menu or shut down Dogecoin Core completely before you make a copy of your wallet.dat.
Hi shibes, This is for everyone who compiles their own wallets. We have just pushed Dogecoin Core 1.8.3 to Github: This is a security update and we highly recommend everyone who runs a node that accepts incoming connection to update asap.
Following are the release notes: Dogecoin Core 1.8.3 Dogecoin Core 1.8.3 is a security release. It fixes issues in regards to an upcoming announcement of possible DoS vulnerabilities. See the announcement on the bitcoin-dev mailing list for reference. It is strongly recommended to upgrade your installation in case you run a node open to inbound connections from the internet. If your installation is not open to incoming connections this update is not mandatory, but we still recommend keeping your client up to date.
Dogecoin Core Release Notes. Pull in patches from usptream to mitigate the risk of a DoS attack. Update the DNS seeds for more reliable bootstrapping of the initial peer discovery. Update the list of fixed nodes, in case all other means of peer discovery fail. We will push binary downloads for everyone who wants to update soon. We're waiting to get more build signatures so you can be sure the downloads are not tampered with. We decided to do this source release first so that services can upgrade their nodes.
Stay tuned for the downloads soon.The Dogecoin Core Devs. BEGIN PGP SIGNED MESSAGE- Hash: SHA1 # Dogecoin Core 1.8.1 Dogecoin Core 1.8.1 is primarily a bugfix release, bringing Dogecoin Core in line with Bitcoin 0.9.3. Dogecoin Core 1.8.1 also adds in support for printing paper wallets, and disables connections to pre-1.8 clients. This is a RECOMMENDED upgrade due to the large number of bug fixes, but is not a required one. Paper wallet support has been developed by AndyMeows (IRC username), and can be accessed via the 'File' menu. It's intended for two purposes; to generate small value paper wallets to hand out, and more permanent deposit paper wallets for keeping balances offline. IMPORTANT: If you are producing offline paper wallets, you should do so on a computer that's disconnected from the Internet.
While the wallet generator does not save the keys it generates, this ensures there is no risk of a virus or similar capturing the key from memory or interfering with its generation. ## Dogecoin Core Release Notes. Translation improvements and corrections.
Disable Transifex based translation process (not used by Dogecoin Core). Add checkpoints around AuxPoW switchover block (371,337). Disable connections from pre-1.8 Dogecoin Core clients.
Use HTTPS with dogechain.info. Remove unreachable code introduced with AuxPoW support. 'blocknotify' option now supports%i as a format parameter, which is replaced by block height. New option 'maxoutconnections' to set the maximum number of outbound peer connections.
Defaults to 8, minimum is 2, maximum is whatever 'maxconnections' is set to (default 125). ## Bitcoin Core Release Notes Full release notes for Bitcoin Core 0.9.3 are available from, but highlights are included below:. Better orphan transaction handling. Add -maxorphantx= and -maxorphanblocks= options for control over the maximum orphan transactions and blocks. key.cpp: fail with a friendlier message on missing ssl EC support. Upgrade OpenSSL to 1.0.1i (see - just to be sure, no critical issues for Bitcoin Core) ## Known Issues There is a known issue with quantities in JSON used by the RPC interface. This stems from the use of a floating point precision number to hold fixed precision data.
Currently looking at solutions, which primarily either involve JSON which is not compliant to the specification, or making the RPC layer slightly incompatible with the conventional Bitcoin API. This only affects values significantly below 1 Doge, however merchants may wish to round to the nearest Doge on all transactions for now. ## Credits Listed in strictly alphabetical order, using name listed in Github. This includes those whose contributions to Bitcoin Core have been merged into Dogecoin Core:. Abderraouf Adjal. Andymeows.
Daniel Kraft. Gavin Andresen.
langerhans. michilumin. nameEO. Patrick Lodder. Ross Nicoll.
Wladimir J. Van der Laan. Whit J -BEGIN PGP SIGNATURE- Version: GnuPG v1 iQEcBAEBAgAGBQJUleTYAAoJEJFC5fflM847JBcIAKy7Ff4IPqxToToEyvk47dCU XOUnx6wTpCAyO1SWD+Y3Gs3fLWnTH658zjeAJ/VWud/Zttmrv49kMZJtF34t85Ts XnHNYSm7HRNluX8bgAmgWYpS5+387lx8dtQwkj8Efv9Cgx8iu5ahwazOVFqxCQC1 2cPCsl1mnr2MGqofbWZfYdHbHuybxyJtBuX8txn5kkxJU9W9H8bkqMMjV5pJRjwo PT9k55uUYvS39NFPwhRcfOYMo3kI6wP0PORq7CGbypLZaX2ffb0f3ZkdkQlFBqrq UJO2q1+VNb/uqm0L/Cs59uapih+oUs8vekXa6jbiS3JpdVpuJkqOJQ3M5/do+fM= =HqbE -END PGP SIGNATURE. The Dogecoin developers are pleased to announce the release of Dogecoin Core 1.8. This new version introduces AuxPoW from block 371,337 (estimated around 12 September 2014), and as a result all users MUST upgrade to 1.8. If you're unable to update before the switchover block, you MUST update as soon as possible afterwards in order to be able to continue to use Dogecoin Core after this point.
Before upgrading, back up your wallet.dat file just in case of any problems; you can back up the wallet.dat file by using the 'Backup Wallet' option from the 'File' menu. Ensure your existing wallet software is closed before upgrading. Note that a full reindex is required as part of the upgrade to 1.8, and this will typically take around an hour to complete. If you are running the Qt client you will be prompted to reindex when first running the software, while if you use 'dogecoind' you must run it the first time with the '-reindex' command line option.
To ensure a smooth switchover to AuxPoW, 1.8 has safe mode disabled 1 hour before until 24 hours after the switch block. This ensures the actually legit fork will not trigger safe mode and halt mining.
If you don't want to have this behavior, then refer to the 1.8-safemode branch. This one doesn't include the patch to disable safe mode. For full release notes, please see.
The first beta if the new 1.8 client is out now, and can be downloaded from Important: This client introduces a hard fork at block 371337, so you must update to 1.8 (a release version is anticipated around this weekend) before then. Predicted date for that block is Sept 12th 2014. I'll send a further announcement out once 1.8 final is released, however for now I'd highly encourage testing with 1.8 beta 1. As always please backup your wallets before upgrading just in case ('Backup wallet' under the File menu).
Lastly, on first run this new version with require a full re-index of the block chain, which takes 20-30 minutes. If you use the desktop (Qt) client it will prompt you to do this, if you use the dogecoind you will need to run it with the '-reindex' option. Full details are up on the forums ( ).
BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hello, We want to announce the release of Dogecoin Core 1.7.1. This is a security release. Dogecoin Core 1.7.1 is built against OpenSSL 1.0.1h, released to close recently disclosed vulnerabilities, which could have an impact on the usage of RPC over SSL. If you use this feature, it is advised that you upgrade to 1.7.1 and OpenSSL 1.0.1h. If you do not use RPC over SSL, you don't need to upgrade. No other changes where made in this release.
If you are still using Dogecoin Core 1.6 and also use RPC over SSL in a publicly accessible manner, we advise you to upgrade to 1.7.1 or restrict the usage of RPC to your local controlled network. Best regards, langerhans (sent by rnicoll on langerhans' behalf) -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Thunderbird - iQEcBAEBAgAGBQJTnhxKAAoJEJFC5fflM847unsH/A/LEmpMgEfkbtV0BPgP9R5n TjdyUJx7uJofWXzy3NTKywtjqBdrZTkRWvbrugvLmvy1wx3V74YloSbGC8whuiod ph1jD2Mcq2nGCV4S+bu619NhD8vwUIZB9Niqy0UJxCwlPmBLpGtvO1GRuprAS5SK vn9k9bOdNZhst4rIPUIUw9BOEnFryswaH7xK6f30NGknET+ghrrmTEt6O4Wq1Mve Om9pdMdpqFJ2t7lyaw1XaRINzF6HNayyhlv5mMmwY7zq1qRHE8jgIgjfeXahNpfr JPJX2LYgQEVTuWuD3g0JmIjD2lbUGbRbGs+nKtS1kjdtjGCXEyUF07WL0h2cdk0= =/xb7 -END PGP SIGNATURE. The Dogecoin developers are pleased to announce the release of Dogecoin Core 1.7. Dogecoin Core 1.7 is a complete re-architecture of the Dogecoin client, changing from using the Litecoin client as its base, to Bitcoin 0.9.
It's still Dogecoin, same Scrypt PoW algorithm, same reward schedule, but there's a lot of changes under the hood. For the full Bitcoin 0.9 changelog, please see Downgrading - First and foremost, please note that downgrading from 1.7 to 1.6 is not trivial. 1.7 now uses Berkeley DB 5.1 as its default database (in place of 4.8), and as such may create database files which are incompatible with previous versions. Rebranding to Dogecoin Core - Following in the footsteps of Bitcoin (Core), the Dogecoin reference client has been rebranded as 'Dogecoin Core'.
This helps separate its identity from Dogecoin (the network). Dogecoin-cli - Where previously commands were sent to dogecoind by running 'dogecoind ', 1.7 adopts the model from Bitcoin Core 0.9 where there is a separate 'dogecoin-cli' executable which us used instead. This avoids the risk of accidentally trying to start two daemons at the same time, for example.
Fork detection - This version is able to detect forks and warn about them both in the GUI and through calling the alertnotify script when a sufficiently long or invalid fork occurs. Changes from RC1 -. Change the amount input field step value to 1 DOGE. Update the splash screen. Update Chinese translation General comments - For anyone running an exchange, please also note that in light of the 51% attack against Reddcoin last night, the Dogecoin developers now recommend a minimum of 10 confirmations for payments into an exchange. While we won't normally be announcing beta updates, this one's critical for anyone mining Dogecoin, so please update if you're using alpha 1 or beta 1.
Key changes: - Fixed coinbase maturity calculation - Added dogecoind and dogecoin-cli binaries for Windows - Use Qt4 for Mac - Updated most of the unit tests to reflect Dogecoin - Removed remaining references to Bitcoin in the UI - Updated documentation Thanks to everyone who contributed! For more information about the changes in 1.7, check the Alpha 1 release notes. BEGIN PGP SIGNED MESSAGE- Hash: SHA1 The alpha test of Dogecoin Core 1.7 has proceeded smoothly and the team has been able to iron out issues and restore some stuff from older versions.
Changelog for 1.7 beta 1: Translation fixes Fix payment URI prefix Added testnet seeds Added back the '-change' option Added back context menu entry to show transaction on dogechain.info Upgrade to OpenSSL 1.0.1g Added back the logo in the wallet. With custom option by putting a dogecoin.png into the data directory ATTENTION This version runs on the production network by default. That means, you will handle real Dogecoin with it.
So, if you run it, your current wallet will be loaded. We have been testing this for some time now and everything works as it should for us. Still, you should backup your wallet.dat (Which you should be doing anyway;) ). Also: As previously noted, a wallet.dat started on this version is not compatible with any previous version. The same holds for backups you create from within the wallet. So in case you want to go back to 1.6 you should backup by starting 1.6 again and use its backup function. Download Mac Build is done, but we have to wait for it to be signed.
Should happen soon I hope:) As soon as we have it, it would be good to have someone on OS X 10.6 test it. For final, we'll have all platforms ready at launch day of course:) -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Thunderbird - iQEcBAEBAgAGBQJTSaxKAAoJEJFC5fflM8478mYH/34VWfqEe5PThU67P7r3z3os +mOUy9NhCNOaH2aCiGioIbmzzmGoA1cBuHfgmn1wjThvwg5z+gt228rWfR6o9rr8 g1Xoqs82C9U9FKmj3QTnzLv/ldTfxN6bBHxbd/gU+v7SseUVuLM9pYGGOAy0m1/M SijBzl5S8DLGu4jsKlol5I1Khd+e1b2dK1SKKZQcguBnluOgc4gttBGXqsOo4rKn 89GUW7+yx0vdsIjJTeZqu0TnoHl/NGP7q2/PQrzhfYZDV2XPtRV4bYnhr42EvgSz DUnMZVPpsIayDdww0eq1x94tURhla4UUsq6GI0rVNKCjtmQ/zD7yAJYiu+ZpsfQ= =cloo -END PGP SIGNATURE.
BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I'm pleased to announce the first alpha release of the Dogecoin Core 1.7 client. Dogecoin Core 1.7 is a complete re-architecture of Dogecoin, changing from using the Litecoin client as its base, to Bitcoin 0.9.
It's still Dogecoin, same Scrypt PoW algorithm, same reward schedule, but there's a lot of changes under the hood. For the full Bitcoin 0.9 changelog, please see Please note that this is a very early release, and a full audit of the code is still in progress. The client has been hard-coded to only work with testnet for now, to avoid risks of damaging real wallets. Downgrading to 1.6 - - First and foremost, please note that downgrading from 1.7 to 1.6 is not trivial.
1.7 now uses Berkeley DB 5.1 as its default database (in place of 4.8), and as such may create database files which are incompatible with previous versions. Rebranding to Dogecoin Core - - Following in the footsteps of Bitcoin (Core), the Dogecoin reference client has been rebranded as 'Dogecoin Core'. This helps separate its identity from Dogecoin (the network). Dogecoin-cli Where previously commands were sent to dogecoind by running 'dogecoind ', 1.7 adopts the model from Bitcoin Core 0.9 where there is a separate 'dogecoin-cli' executable which us used instead. This avoids the risk of accidentally trying to start two daemons at the same time, for example. Transaction malleability-related fixes - - Fixes for risk-cases involving transaction malleability have been added; this is particularly important for any merchants or exchanges using the built-in wallet system.
Downloading 1.7 - - You can download the 1.7 client from Future releases - - A beta client is expected to be released within the next fortnight, depending on response from alpha testing.
Make Paper Wallets to Keep Your Bitcoin Addresses Safe. For long-term storage of bitcoins (or giving as gifts) it's not safe to store your bitcoins in an exchange or online wallet. These types of sites are regularly.
Even keeping a live wallet on your own computer can be risky. Be your own bank. By printing out your own tamper-resistant bitcoin wallets and generating your own addresses, you can minimize your exposure to hackers as well as untrustworthy people in your home or office.
Just transfer your bitcoins into your new wallets, and use common sense to keep your wallets safe the way you would jewels and ordinary cash. Or give them away! 'Bitcoin Cash' Paper Wallets In August 2017, the Bitcoin blockchain 'forked' creating a new digital currency called Bitcoin Cash (BCH). Paper wallets generated on this site are fully compatible with Bitcoin Cash. Is available to make it easy to identify Bitcoin Cash paper wallets. Why trust this site? This generator is based on BitAddress.org, the well established and most trustworthy open-source engine for generating addresses using your own browser's JavaScript engine.
No crypto-code is run on this web server, and no addresses are transmitted over the Internet. BIP-38 encryption is fully supported as well.
If you don't trust this service (or pseudorandom number generators in general) this wallet service lets you roll dice, shuffle cards, or supply your own 'vanity keys'. To be more secure, you should download this wallet generator from GitHub and run it offline, or even. —started this service in 2013—easily reached for questions, Bitcoin business consultation, or custom designs at: Email: We invite you to read this.
Tri-Fold Template This guides you to print both a front side and a back side for your paper wallet. All sensitive details on the front side (the private key and QR code) are folded up and securely taped shut so as to stay hidden. For additional security, you can seal your wallets with the tamper-evident serialized available for purchase on this site—though any sufficiently opaque (light-blocking) tape will work fine. Tamper Resistant One risk with a paper wallet is that someone with physical access to your wallet may 'sneak a peek' at the private key and withdraw your funds without your knowledge. This wallet's folding design and obfuscating security patterns resist ' - the process of shining a bright light through the paper to reveal what's printed inside.
Tamper-evident hologram stickers destory themselves when removed, preventing stickers from being replaced with new ones. Perfect for Giving Want to give bitcoins to someone who isn't tech-savvy?
Need to send bitcoins by mail? Use a pre-loaded paper wallet.
The sealed-shut folded design helps to ensure that the recipient won't accidentally reveal the private key. For recipients unfamiliar with bitcoin, the reverse side of the wallet has printed instructions for checking the wallet balance and withdrawing funds. Order Paper Wallet Supplies. 1) Tamper-evident serialized hologram stickers, silver and gold. 2) Ubuntu LiveCD with the wallet generator pre-installed.
It will boot on almost any computer with an optical drive, whether you're using a Mac or PC. 3) A limited edition high-quality vinyl Bitcoin sticker for your laptop or car - free with every order. 4) Zip-sealing bags, perfectly sized for this design. Hologram stickers come in silver and gold tints, and feature printed in pairs. You can also order a with the generator pre-installed - by far the easiest and safest way to print out secure wallets. All orders include free first-class shipping, plus one free zip-sealing bag and a high quality 3.5 inch vinyl 'bitcoin' sticker for your car or laptop. The shiny hologram tape used to seal up the paper wallets you see on this site isn't just for good looks.
It's 'tamper-evident' tape that provides a deterrent to a significant group of would-be thieves: someone in your trusted environment (home, work) who might be motivated to steal your coins if you were unlikely to notice the withdrawal until checking your balance online. The holographic design on this tape is irreversibly damaged as soon as the tape is lifted from the paper, no matter how carefully it is replaced. Unique serial numbers (printed in pairs) guard against merely replacing old stickers with brand new stickers. The reflective quality of the tape protects against 'candling' - using a super-bright light source (like a laser) to see the private key through the folds.
Secure Wallet Generation & Safekeeping 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 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 ) or printing, or treating the paper with a clear coat spray like.
Tldr: 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: Withdrawing Funds The private key on this wallet is recorded in typical 'Wallet Import Format' (WIF).
Many online services (e.g., ) will let you import or 'sweep' your paper wallet using this key. 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,. Tldr: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.
Although the wallet generator on this website is SSL-encrypted, it's still possible for someone to be snooping on you. (For example, your computer might have malware that broadcasts your screen to a remote location.) The most important safety measure is to go offline and run the javascript wallet generator on your own computer instead of this website.
Tldr: or and run the wallet generator with your Internet connection turned off. How to delete pesky printer cache files Macintosh:. Enable 'FileVault' to encrypt your filesystem so that cache files cannot be 'undeleted'. Set up a symbolic link from /private/var/spool/cups/cache/ to a removable media volume (e.g. A SD card) and disconnect it when not in use.
Best Dogecoin Wallet
Windows:. Use an encrypted filesystem so that your cache files cannot be 'undeleted'. Read on how to change the destination of your cache (spool) files to removable media. Linux:.
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! Using a Clean OS If you've got loads of applications on your computer, or if you use your computer for 'risky behavior' (like installing freeware or visiting java / flash websites) consider dedicating a computer (or at least a bootable partition / thumbdrive / 'live CD') for paper wallet printing. Never take that install online. Transfer the wallet generator from GitHub to your clean OS using a thumbdrive or other non-networked method.
Tldr: Run the wallet generator on a dedicated offline computer / OS. 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.
There is also the possibility that a smart enough printer can be hacked. This isn't quite tinfoil-hat level paranoia, as we've seen examples of viruses that rewrite the firmware of non-computer devices indirectly connected to the Internet. If this concerns you, don't use a fancy printer, and never let your printer have access to the Internet or to an Internet-connected computer.
Tldr: Smart printers save copies of what they print and may be vulnerable to super-smart viruses. Use a dumb offline printer whose firmware can't be reprogrammed. Scared silly? There's no need to follow all of these precautions.
If you're just generating some give-away wallets for fun or to store small amounts of bitcoin, relax. Just use the on a trusted computer over a secure Internet connection. For storing larger amounts, follow as many of these security precautions as you can.
Frequently Asked Questions. I love Bitcoin. I love how it's elegant, functional, philosophical, and radical. Unfortunately, for folks not steeped in cypherpunk ideology and network security, bitcoins are hard to understand, hard to purchase, and hard to keep safe. The primary purpose of this site is to make it easier to keep your coins safe once you've gone through the hard work of acquiring some. The secondary purpose of this site is to encourage you to expand the understanding and acceptance of Bitcoin by loading up and giving away these beautiful and fairly idiot-proof paper wallets.
Hey, here's a couple bitcoins. Keep this paper somewhere safe for now, because some day it might be worth a whole lot and you can buy yourself something nice. © Copyright 2014.
The text on this page is released and licensed under Creative Commons Attribution 3.0, which means that you are free to distribute, use and modify it for any personal or commercial purpose provided that you include an obvious link back to bitcoinpaperwallet.com. The Bitcoin Paper Wallet software (HTML and Javascript) may be modified and redistributed according to the MIT and GPL licenses described in the source code. The bitcoinpaperwallet.com logo, hologram sticker design, and folding wallet design are copyrighted and may not be replicated or used without permission except for personal use.