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1  Bitcoin / Project Development / BitcoinPaperWallet: New B&W paper wallet design. Ubuntu Live DVD now on 14.04LTS on: February 02, 2015, 03:45:03 PM
Updates for January 31, 2015

The #1 request I've received regarding has been for a design that's better suited for black and white laser printers. Here it is, at last! Just select "Black and White" from the design dropdown on BitcoinPaperWallet instructions tab.

Also, for the last couple years, the customized Ubuntu boot CD has been mastered using the 12.04.3 Ubuntu distribution*. The benefit of switching to 14.04 LTS is built-in support for MANY more printers.

Edit/P.S.: Thanks to the community for incredible support over the last 12 months. Also, as of yesterday, all donations to the project have been tallied up and shared with the people who have helped this project most: Pointbiz (, Artiom Chilaru (BIP38 and camera QR code scanning) and Martin Ankerl (HTML5 Canvas rendering and generative pattern code that makes each wallet look unique.) Thanks to all these amazing developers.

2  Economy / Service Announcements / *IF* you're going to give away Bitcoins for the holidays, MAKE EM NICE! :) on: November 28, 2014, 06:39:33 PM
Author of here. You can of course make these wallets yourself for free from my site.

I do sell the hologram stickers, protective bags, and Live Boot Ubuntu CD (software pre-installed) that help make these wallets more beautiful and secure.

**Today only: 20% off** when you place an order with this special link:

Free worldwide shipping as always. Also I'm giving away two free bitcoin stickers (one B&W, one gold foil) with every order. Also, I'm giving away a heavyweight letterpress-printed gift tag with every order (while supplies last -- I've only got about 50 of these left.)

3  Local / 中文 (Chinese) / Traditional Chinese Translation for BitcoinPaperWallet on: June 20, 2014, 05:55:25 PM

Can someone here please help me adjust these paper wallet instructions from simplified chinese to traditional chinese? Thank you!

publicAddress: "公开地址",
depositVerify: "存款/查询余额",
privateKey: "钱包导入格式",
walletImportFormat: "WALLET IMPORT FORMAT",
withdraw: "私钥/取款",
backLongTextFontSize: "10px",
backPaperWallet: "BITCOIN 纸钱包",
backAmount: "添加数量",
backDate: "日期",
backNotes: "注释",
backInst1: "可以随时向公开地址发送比特币为该纸钱包添加资金。",
backInst2: "使用例如blockchain.info这样的服务,通过搜索公开地址来查询你的余额。",
backInst3: "在你准备将余额导入到比特币客户端、交易平台或者在线钱包之前,<strong>请勿泄露私钥</strong>。",
backInst4: "从此钱包取出资金时,请将<strong>全部余额一次性</strong>取走。如果你试图只取走一部分,那么你很有可能永远失去剩余的比特币。<br /><br />有疑问?请访问 :",

As depicted here:

If you wish to see this in context (or try out the paper wallet) go to:

Thank you again!
4  Economy / Goods / This week only: Ubuntu Live $10, ships free worldwide on: June 19, 2014, 02:07:30 PM
This offer is good for the next few days only, while supplies last. (I have about 8 in stock.) US$10 (or .0165 BTC at the time of this writing) gets you the live-boot Ubuntu CD with software pre-installed, with free shipping to anywhere in the world. No joke! Just turn off your Internet connection, reboot to this CD, and print paper wallets without worrying about viruses, trojans, heartbleed SSL vulnerabilities, etc.

About the CD:


Trust? See:;u=39021

- Canton Becker

5  Bitcoin / Bitcoin Discussion / Don't get goxxed. Use secure paper wallets. Ubuntu LiveBoot CD wallet generator. on: March 03, 2014, 04:19:00 PM author here.

Read here to see how the CD works, what it's for, or for step-by-step instructions on how to make your own customized Ubuntu Live Boot CD for free:

I'm also selling this CD right now for $18 USD / .03 BTC -- including free shipping anywhere in the world.

When I leaked an image of this CD on reddit a while back, it caused a veritable shitstorm, so I wanted to post a couple of pre-emptive notes about the March 1, 2014, first official release of this CD:

  • This isn't just the standard Ubuntu Live CD you can burn yourself. It has been carefully (securely) re-mastered to include the bitcoin/litecoin/dogecoin BIP38 paper wallet generator on the desktop. For most computers, using the CD is literally as easy as insert the CD, reboot, and start printing wallets without ever going online.
  • Use of the Ubuntu trademark and permission to re-sell this modified version of the Live Boot CD was cleared through Canonical's legal department
  • Rigid security practices have been implemented to make this product available, from the production of the CD master in an isolated environment, to the actual burning of CD, to the tamper-evident chain of custody practices used to ensure that the CD you receive in the mail has not been replaced with a fake.

My sincere hope with this product is to make safe paper wallet generation extremely easy. I promise you there's not a huge profit in this type of venture, especially not at this price point.

In the wake of the MtGox debacle, it's more important than ever to give anyone -- even newbies -- tools for securely working with paper wallets.

Canton Becker
6  Economy / Service Announcements / beta testing multicoin support on: February 21, 2014, 03:42:36 PM
Need a paper wallet?

Along with BIP38 password protection, dice rolling, brain wallets, and QR code scanning/validation, the latest version of allows you to switch between various Bitcoin designs as well as Litecoin and Dogecoin address generation. Happy for any feedback, thanks.

7  Alternate cryptocurrencies / Altcoin Discussion / NEW Paper Wallet generator: Litecoin, Dogecoin, with BIP38, QR scanning, dice... on: February 20, 2014, 03:21:15 PM
Dear Litecoin and Dogecoin people,

I've received lots of requests for altcoin versions of my tri-fold paper wallet site/software, This morning I'm announcing the first public beta fulfilling this request:


Today I also started selling hologram stickers for these designs. These are (totally optional) silver holograms with serial numbers. (No 'bitcoin' text overprinted.) See:

For the time being, please do not commit significant amounts of coin to this generator as I'm still in a testing / feedback phase. You'll know that testing is over and that the software is ready for significant coin when it replaces the current generator at (and becomes available on GitHub.)


  • New "multicoin" software lets you generate wallets for bitcoin, litecoin, dogecoin, or testnet
  • BIP-38 password encrypting, including the ability to password-encrypt a private key of your own choosing. (As far as I know, this isn't yet possible with,, etc.)
  • Improved randomness / entropy gathering, but also ability to roll dice, shuffle playing cards, or pick a passphrase ("brain wallet") to generate your paper wallet.
  • Camera QR code scanner lets you validate an existing paper wallet, decrypt your BIP38 wallet, or, easily DUPLICATE AND CONVERT any old paper wallet to this new design. This means you can easily convert an old ugly paper wallet into a beautiful tri-fold wallet with BIP38 encryption!

Thanks for checking out the latest version of this software. I'm extremely appreciative for any testing (e.g. "Hey, this BIP38 key doesn't decrypt right!") or feedback on the design of the new wallets (e.g. "Hey, you got the blockchain explorer URL on the back wrong!")

Canton Becker

8  Bitcoin / Bitcoin Technical Support / Should I use BIP38 wallet encryption? How do I spend a paper wallet? on: February 13, 2014, 05:55:27 AM

I'm requesting feedback on a F.A.Q. I'm writing up at for these questions and more. Any criticism / additions / improvements are welcome.

How do I add bitcoins to a paper wallet? How do I withdraw/spend them?

How does BIP38 wallet encryption work, and should I use it?

What is an Ubuntu LiveCD for? How does it work?

How do I scan QR codes with my camera?

9  Bitcoin / Project Development / Alpha release of with BIP38, QR code scanning, dice, etc. on: February 05, 2014, 05:14:22 PM

I would love any feedback or especially help testing the forthcoming update to which adds:

  • BIP38 encrypted wallet generation (AT LAST!) Smiley
  • webcam QR code scanner (for verifying, duplicating, or converting non-BIP38 wallets to BIP38)
  • a "validate" section for decrypting BIP38, re-printing a wallet using an existing key, or just checking the validity of a wallet
  • ability to generate printed backup of a 'brain wallet'
  • ability (and good instructions) for generating keys using six-sided dice or shuffling a deck of playing cards
  • improved entropy gathering at startup & entropy visualizer
  • fix for serious Safari 6.05 BIP38 bug that still impacts most/all other Javascript BIP38 implementations online

If you find significant bugs/issues I'll gladly heap praise plus some free hologram stickers & wallet making supplies on you. When reporting issues, please specify what browser and operating system you're using. Thanks for your help.

*** Please do not use this online generator for significant amounts of bitcoin as this is an "alpha" release and may have bugs ***

Go here to test:


- Canton
10  Bitcoin / Bitcoin Discussion / Chinese New Year is Friday Jan 31. Here's your "red envelope" paper wallet. on: January 18, 2014, 03:59:34 PM
As of this morning, this paper wallet design is available at

If you want perfectly sized envelopes try to find ones approximately 15cm x 8cm (6" x 3").

In Chinese and other Asian societies, a red envelope or red packet is a monetary gift which is given during holidays or special occasions. It is known as hˇngbāo in Mandarin, angbao in Taiwanese (also Singaporean Hokkien), angpau in Min Nan and lai see (利市/利是) in Cantonese.

Thanks to "Libin" for the translations used in this design.

Try it live here:
11  Local / 中文 (Chinese) / Chinese New Year Paper Wallet on: January 18, 2014, 03:55:33 PM
As of this morning, this paper wallet design is available for free at -- though downloading the GitHub ZIP ZIP and running the generator on your own computer is safer especially for securing significant quantities of bitcoin.

If you want perfectly sized envelopes try to find ones approximately 15cm x 8cm (6" x 3").

Thanks to Libin for the translations used in this design.
12  Bitcoin / Bitcoin Discussion / PSA: Do not use Safari 6 to make BIP38 encrypted paper wallets. on: January 14, 2014, 11:30:00 PM
Hi, author here.

Over on GitHub, artiomchi and I have been working on adding BIP38 support. As some of you know, I've been extremely cautious/slow/dragging my heels with BIP38 implementation since it's relatively new and not especially well supported by wallet software and services.

During testing, we uncovered an issue with Safari version 6.05 in which BIP38 encrypted wallets end up with a different (essentially wrong and invalid) "6P..." private key. The only way to decode one of these wallets is to use Safari 6.05 for decryption as well. If you upgrade your browser after printing a BIP38 wallet using Safari 6.05, you won't be able to decrypt it unless you find some way to downgrade back to 6.05.

This is a problem endemic to most (all?) services implementing BIP38 via Javascript --, etc. It doesn't impact because we haven't deployed BIP38 (yet).

As a preliminary step until a fix is in place, I recommend:

1. Do not use Safari version 6 to make any new BIP38 wallets

2. If you already used Safari version 6 to make BIP38 wallets, decrypt those paper wallets right now (using Safari 6, nothing else will work) and keep an unencrypted paper backup somewhere safe. Consider making new BIP38 wallets using Chrome or Firefox, and use them to receive funds from your Safari 6-encrypted wallets. Once you're sure your safari-6 BIP38 encrypted wallets are empty, discard.

Here are the relevant threads if you want to dig into the nitty gritty, or contribute your own tests/validation:

Huge thanks to /u/artiomchi for his excellent work bringing BIP38 to and for helping to narrow down this possibly alarming issue.
13  Bitcoin / Project Development / Auto-validating,,, etc. on: January 13, 2014, 05:30:33 PM
    Hi, developer of here.

    I'm looking for feedback on an idea I have for a self-service "website validator" for people who insist on running live financial transactions off of live websites like,, etc.

The problem

  • The only safe way to run one of these services is by downloading the ZIP file from Github and verifying the SHA1 or PGP signature against what's been published.
  • This is fine for developer/nerd types, but definitely not something within my mom's skillset. She has BTC, and I'd like it if she could secure them herself.
  • My mom is capable of running in a browser, but there's no way telling if the website has been hacked and is serving up a malicious/compromised wallets.
A solution?

  • Someone *other* than one of the developers of,, etc. deploys a brand new website, maybe called ''.
  • This website displays a list of all the popular bitcoin-related web services along with their latest published SHA1 sums (automatically scraped from github READ ME files?)
  • Each site has a "VISIT" button next to it. When you click the visit button two things happen: 1) a new window pops up with the destination site loaded over HTTPS, and a moment later 2) javascript is used to retrieve the same HTML from the same website and compute a SHA1 sum and compare it against the published SHA1 sums.
  • If the published SHA1 sum matches what your browser shows as the SHA1 sum, this means it's safe to visit that site, and a "VERIFIED SAFE TO USE" badge appears next to the "VISIT" button.
So this site would really have a dual purpose:

1) It serves as a directory of popular bitcoin-related web services, and
2) It erects a roadblock in that a hacker would have to compromise both a bitcoin web service AND the '' website (or the github repo) in order to attack live web users.

Any thoughts on this idea? And a reminder, this is absolutely not about replacing the recommendation that users download the github ZIPs. This is merely a proposal to help safeguard what we all know is happening in the real world: that my mom (and maybe yours!) are using live websites to print paper wallets and transact with bitcoin.
14  Bitcoin / Bitcoin Discussion / Hobbitcoin paper hoard! on: December 25, 2013, 12:12:22 AM
Images submitted to me just now via email, I'm asking the author if he wants credit.

At the moment, this design is only available using the online generator at:

If you want to use this design for significant amounts, it's a little complicated: Download the generator from GitHub, then install these three files into the images directory. Then you can launch the generator locally by appending ?design=hobbit to the URL, e.g. file:///generate-wallet.html?design=hobbit

Giving one of these as a gift? This might go on your envelope, of course:

A box without hinges, key, or lid,
yet golden treasure inside is hid.
15  Economy / Goods / Heavyweight letterpress bitcoin gift tags on: December 16, 2013, 07:03:22 PM
16  Bitcoin / Bitcoin Discussion / Uh-oh. (more or less official bitcoin wiki) domain name lost? on: December 15, 2013, 06:15:22 AM
Status:             pendingDelete / redemptionPeriod
Created:            2010-12-01 10:15:11
Last Update:        2013-12-15 02:49:35
Expire Date:        2013-12-01

Hope it gets renewed during the redemption period, otherwise will probably go to the highest bidder...

17  Bitcoin / Bitcoin Discussion / BTC Donation campaign for World Pediatric Project (1 year Sandy Hook memorial) on: December 14, 2013, 04:52:36 PM
The World Pediatric Project is a 4-star charity dedicated to ending the needless suffering of critically ill kids. They send out surgeons for direct care and lead projects to build healthier communities for impoverished children.

If you want to donate Bitcoin, I've setup a wallet specifically for this purpose -- just send Bitcoin to 1CHiLDe6EcVKkTwi4JVwDcY9f3ywp9RUu2 and I will convert these to USD and send them to World Pediatric Project at the end of next week. I will pay any exchange fees, assume tax liability, and (at the end of the week) prove that all donations were transmitted as promised.

If you want to support this organization but don't want to donate Bitcoin, just donate directly at:

To certify that this offer is reputable and coming from me (Canton Becker / I've PGP signed the 1CHiLD donation address. You can find my PGP fingerprint by searching online.

Hash: SHA1

Comment: GPGTools -


Additionally, through to the end of this weekend, 50% of all sales at my site will be donated to World Pediatric Project. All orders will also include a free limited edition letterpressed bitcoin gift tag.
18  Bitcoin / Project Development / BitcoinPaperWallet now prints out wallets in 10 different languages on: December 08, 2013, 05:13:57 PM
Translations have been added for Chinese, Czech, Dutch, French, German, Italian, Portuguese, Russian, and Spanish.

A huge thank-you to both the reddit and bitcointalk communities for volunteering these translations.

Note: The general website and generator is still english-only. However the actual printed wallets (including wallet usage instructions on the back side) can now be generated in 10 languages. The special "holiday/christmas" design is english only. A forthcoming "chinese new year" design will be chinese only.
19  Local / Разное / Can someone please translate my paper wallet into Russian? спасибо! on: December 04, 2013, 02:22:48 PM
Thanks very much for your help. This is the wallet design I'd like to have translated into Russian.

These are the terms that need translating:

  • To deposit additional funds to this paper wallet, send bitcoins to its public address, anytime.
  • Verify your balance by searching for the public address using a service such as
  • DO NOT REVEAL THE PRIVATE KEY until you are ready to import the balance on this wallet to a bitcoin client, exchange, or online wallet.
  • When withdrawing your funds from this wallet you should remove the ENTIRE BALANCE. If you attempt to spend only some of the funds you will likely lose the remaining bitcoins forever.
  • Questions? Go to:
  • Amount added
  • Notes
  • Date

You can either reply here, or on the corresponding thread on reddit where I'm also providing Bitcoin "tips" as a gesture of appreciation.

- Canton Becker

20  Local / 中文 (Chinese) / Can someone please translate my paper wallet into Chinese? 谢谢! on: December 04, 2013, 02:14:02 PM
Thanks very much for your help. This is the wallet design I'd like to have translated into Chinese.

These are the terms and phrases that need translating:

  • To deposit additional funds to this paper wallet, send bitcoins to its public address, anytime.
  • Verify your balance by searching for the public address using a service such as
  • DO NOT REVEAL THE PRIVATE KEY until you are ready to import the balance on this wallet to a bitcoin client, exchange, or online wallet.
  • When withdrawing your funds from this wallet you should remove the ENTIRE BALANCE. If you attempt to spend only some of the funds you will likely lose the remaining bitcoins forever.
  • Questions? Go to:
  • Amount added
  • Notes
  • Date

You can either reply here, or on the corresponding thread on reddit where I'm also offering Bitcoin "tips" as a gesture of appreciation:

Thank you for your help. The translation you provide will also be used to generate a special Chinese New Year design suitable for anyone who wants to give Bitcoin in red envelopes. To see what I mean, have a look at this special Christmas design:

- Canton Becker

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