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1  Economy / Service Announcements / Re: The official thread -- updates and news. on: October 10, 2018, 03:31:29 PM
Hash: SHA256 is under new ownership

First of all, thanks to everyone who supported this project and helped with its
development since I started it back in 2013.

At the end of April 2018, I sold the website, service, and
associated domain names to a new owner.  This also includes related projects such as and  All orders for hologram stickers and
CDs, and any questions relating to the business, should be directed to the new owner at  Also, I will no longer be making updates or accepting code
contributions for this project at The
updates posted in September 2017 are my final contributions to this project.

If you have any questions regarding, please direct them to the new
owner at

Canton Becker

2  Alternate cryptocurrencies / Altcoin Discussion / Re: Bitcoin cash paper wallet? Where to get one on: September 05, 2017, 04:09:58 PM
I just finished a Bitcoin Cash design and added it to the site I've been running since 2013, -- which uses the same crypto code as

I registered a URL that functions as a shortcut to the generator with this design pre-loaded:

3  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.

4  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.)

5  Other / Beginners & Help / Re: Paper Wallet Secure???? on: November 26, 2014, 04:23:41 PM
how secure the paper wallet if i create and print it from the websites like bitaddress or etc, do the owner of that website known about the private key Huh

When you use my own generator ( there's a helpful "security checklist" that tells you how secure you're being.

The trickiest part is creating an Ubuntu Live CD with the wallet generator pre-installed (so that you never have to go online). I actually sell a product to make this easy:

6  Alternate cryptocurrencies / Altcoin Discussion / Re: Safest way to store counterparty (XCP)? on: November 26, 2014, 04:14:55 PM
How about a paper wallet?
7  Bitcoin / Project Development / Re: Alpha release of with BIP38, QR code scanning, dice, etc. on: August 14, 2014, 02:03:30 PM
- passphrase shared with Shamir secret sharing scheme.
Do you thing you should add this feature or do i have to do it myself ?


Sorry but at the moment I'm not planning on adding SSS, so it will be up to you. The reason is that with SSS, the tri-fold tamper-evident design I output is kind of overkill. For SSS, regular slips of paper should work fine -- no need for such a fancy design.
8  Economy / Service Announcements / Major update to paper wallet generator (June 25, 2014) on: June 26, 2014, 03:48:25 PM
This note is to announce that the generator has been updated as of June 25, 2014. Both the GitHub ZIP and the Ubuntu CD have been updated.

Ubuntu CD:

In addition to the improvements mentioned last week (dynamic background "guilloche" patterns, more translations, ability to have denominations on wallet fronts, different coloration for BIP38, etc.) these last-minute features were added:

* Ability to type in your own message to be printed on the reverse

* Option for typing in your own denomination (e.g. 1337 mBTC)

9  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!
10  Economy / Service Announcements / Re: The official thread -- updates and news. on: June 19, 2014, 02:51:49 PM
Seems I will be redoing some of my existing paper wallets this weekend!  Wink

Tip: Especially if you're using Firefox, you can use the "Validate" tab to scan your old wallet's private QR code with your webcam. Once scanned, there's a button to load in the address as a wallet, whereupon you can add BIP38 if you like, change the design, and print a new one.

Also, last night I updated the beta to allow you to type in your own message on the back if you don't care for the instructions. You might use this to record a hint for your BIP38 password, etc.
11  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

12  Economy / Service Announcements / Re: The official thread -- updates and news. on: June 17, 2014, 03:06:11 AM
I notice you changed the pattern on the private key obfuscation panel - any particular reason?

As a matter of fact, yes!

* On the front side, the obfuscation is now truly random, unique for every wallet. Important for defeating someone smart enough to be doing candling and looking for a "difference pattern" with the old predictable

* On the rear edge, the obfuscation is now simply more attractive. I use a flowery guilloche pattern instead of those colored dots. It's placed so that its most dense ink areas go right over the QR codes.
13  Economy / Service Announcements / Re: The official thread -- updates and news. on: June 16, 2014, 06:21:15 PM
This weekend I had a couple days off for Father's day, so I finally implemented some features I've had on the back-burner for a few months. Here's what's new:

  • The background pattern ("guilloche") is algorithmically determined by the first 8 chars of the public key. This way each and every paper wallet looks a little different. I like how this reflects the significance of every public key (your wallet) being unique. Good teaching point when you're giving these away. If you don't like the pattern you get, just hit the "generate new key" button a few times, or roll your own with dice, etc.
  • By popular demand: BIP38 encrypted wallets now have a different color (blue stripe) so you can tell at a glance which wallets are encrypted and which aren't.
  • Also by popular demand: when printing a wallet, you have an option to add a denomination that shows on the front, e.g. 1 BTC, 250 mBTC, etc. Nice for gifts. You can also turn off the back side instructions and deposit notes if you prefer to have that space for writing a personal message or password hint.
  • Additional languages: Hebrew, Japanese, and Swedish for a total of 13 languages. Also, languages are dynamically rendered in HTML now instead of using huge JPG images, so the github download size will shrink considerably.
  • Minor changes to graphic design. On the whole, a bit more elegant and currency-like. After all, the more valuable these look, the less likely they are to be thrown away by the person going through your personal affairs when you die...

You can try out the beta here:

Thanks in advance for any feedback. Contact me directly if you'd like to submit additional translations.

You can try out the beta here:
14  Bitcoin / Project Development / Re: Proposal to imprint bitcoin unto paper currency on: May 29, 2014, 02:55:10 PM
Good idea but is a federal crime to mutilate a bill. I prefer the way to have own paper money as paper wallets, just as casaciuos coins and bills, only with multisign addresses.
Yeah, the best solution would be to create an organization with reputable members who would provide their own public keys and print its own currency.

Actually I kind of like the idea of repurposing a national currency. There's something poetic about this. Consider the Venezuala Bolívar:

If I was a Venezualan, and I'd watched the value of my 500 Bolívar bill decrease 46% overnight ( I might take some satisfaction from "guaranteeing" the value of my bill by adding bitcoins to it.

Do I understand correctly however that this is almost a "proof of burn" type of valuation? The bitcoins allocated to a bill are *provable* yet *unspendable*?
15  Bitcoin / Bitcoin Discussion / Re: The perfect gift for a bitcoin enthusiast? [Ideas Hunt] on: May 06, 2014, 10:16:33 PM
- It has to be under $100
- it has to be able to be bought with bitcoin and shipped worldwide
- it should be something that most people into bitcoin will appreciate.

I like my "I am Satoshi Nakamoto" T-shirt. I'll also second the beesbros -- I've ordered their honey and caramels before. Wonderful. Not sure if they ship worldwide.

Also, a starter kit from (my site) since these include free shipping worldwide.

Kinda boring but very functional for a bitcoin enthusiast...
16  Alternate cryptocurrencies / Altcoin Discussion / Re: Creating a cold paper wallet with dice [ANY ALTCOIN] on: May 06, 2014, 10:12:38 PM
Can anyone explain it to me?
I somewhere that i can create a private key by rolling 2xD8 64 times to create a key but wouldn't know how to go from there.

Hi there,

I wrote up some instructions for this on the generator, which also supports a couple of alt currencies.

1) Load up the generator at

2) You can skip the random mouse intro. Click the "Front" tab.

3) Click 'supply my own key'

4) Click for the help button on rolling dice etc, which includes these instructions:

If you want to roll dice or shuffle a deck of cards to generate a key:

Maybe you don't trust that this software (or computers in general) can generate sufficiently random numbers. In this case, you can supply your own random data points from virtually any source. For example, you can roll a six sided die at least 62 times and enter each roll in sequence, e.g. '15249385...' Or, you can mix up a deck of 52 playing cards (after thoroughly shuffling it at least 10 times) and enter at least the top 31 cards in this format: 5S-10H-AC-... (where 5S = 5 of Spades, 10H = 10 of Hearts, AC = Ace of Clubs, etc.)

Essentially what you're doing is rolling dice or shuffling cards etc. just to generate a random string. Then you feed that string into the SHA256 function of the paper wallet software, and this is what gives you your own hand-rolled private key.
17  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][XCP] Counterparty Protocol, Client and Coin (built on Bitcoin) - Official on: April 06, 2014, 07:13:34 PM
I'm not smart enough to use the command line version, and I also don't feel comfortable leaving funds on exchanges.

Send your XCP to a paper wallet?
18  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][XCP] Counterparty Protocol, Client and Coin (built on Bitcoin) - Official on: March 28, 2014, 06:06:53 PM
Every full node must download the full blockchain (prunable or not!).
Every full node has consented to download and store financial transactions.
NOT every full node has consented to store anything else

My 15GB copy of the blockchain contains an estimated 5GB worth of un-prunable gambling transactions, and I'm pretty unhappy about that. Are Satoshi Dice transactions "financial transactions"? Are Counterparty investment derivatives paid in bitcoin considered "financial transactions"?

Who are we to judge? As someone who runs a full node, what I'm agreeing to is to support the blockchain and the Bitcoin protocol itself, no matter how it's used. What's objectionable is when the Bitcoin protocol itself shifts beneath our feet because the core development team is making these judgements on everyone's behalf.
19  Economy / Service Announcements / Re: Criticize my tamper-proof paper wallet design... and steal 0.1 BTC if you can. on: March 23, 2014, 08:07:29 PM
Would it be possible to add an option to print two copies of your paper wallet at once on 1 sheet?

Possible, but not automatic. You can print two wallets per page, either with the same keys or different keys, your choice. See "Can I print two per page" at:
20  Bitcoin / Bitcoin Discussion / Re: Proof of location on: March 18, 2014, 01:25:36 AM
Is this a solved problem or can reported location always be spoofed?

I know there's a lot of interest in this topic as it relates to cheating in augmented reality games. There's probably a lot of thought, energy, and maybe even FOSS solutions out there... google for (example) "ingress prevent gps spoofing"
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