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Piper Wallet / Cryptographi.com Affiliate ProgramSign up here: https://cryptographi.refersion.comWhat is Piper Wallet / Cryptographi?Piper Wallet is a device used to store Cryptocurrency securely. Piper provides the end user with the ability to create a paper wallet by pressing one button. Piper also has more advanced features, and since Piper is based on the Raspberry Pi, Piper is actually a full computer with USB ports and an HDMI port. Piper Wallet is manufactured by Cryptographi. What is the Cryptographi Affiliate Program?The Cryptographi Affiliate Program allows you to earn 8% from every product purchased on Cryptographi.com through your referral link. Referral commission does not include tax or shipping and at current prices is $18.32 per Piper.How do I join the Cryptographi Affiliate Program?You can sign up for the program at this link: https://cryptographi.refersion.comWhat if I want to take this to the next level?Let’s talk! We’re interested in opportunities and expanding Cryptocurrency around the globe. Possibilities include batch file uploads and API access. Email chris@cryptographi.com for more info.
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Hey Everyone, If you haven't heard of Piper, check it out here: https://piperwallet.com. Piper is a self contained hardware paper wallet printer, but it does more than just print wallets because it's powered by a Raspberry Pi which is a full computer. We've sold over 300 units since we started making Piper last year. We couldn't have done it without the support of the bitcoin community so thank you everyone! I just wanted to let everyone know that we've recently added Dogecoin, Feathercoin, and a whole bunch more alt coins (full list is on the FAQ on our website) to latest software release (v1.06). You can switch which coin Piper prints by plugging in a mouse and display and going to the Settings tab of the Piper application. We've also added Shamir's Secret Sharing Scheme, we made printing faster, and we added the ability to paste in any text and print it with the internal printer both as plain text or encoded as a QR code. Finally, we updated the copies of bitaddress.org and liteaddress.org and we added dogeaddress.com to the Piper software release. Thanks so much everyone for your support! |
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Hey guys, you can send a postcard anywhere in the world with a few clicks using http://cards4bits.com for only ~0.028 BTC Surprise someone you care about with a nice postcard. Nobody expects to get anything personal like that in the mail anymore, and it's quite a nice surprise when you're only expecting bills and junk mail but you find a postcard from someone you know. The sender can keep their anonymity if they wish, and we promise not to disclose the recipient addresses for any reason, ever. Thanks everyone! |
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Hi everyone, Piper sales have been quite steady so far which is keeping me busy, but I wanted to take a break from building them to let everyone know that Piper now comes with archival-grade paper with a 20 year image life. This special paper was custom made for Piper and you can't get it anywhere else. Check out our website http://piper.pw for more info, and thanks everyone for your support! Edit: I almost forgot! If you bought a Piper before we had the 20 year paper, you're entitled to 2 completely free rolls, you don't even have to pay shipping. You can also add more than 2 rolls if you want for $2 each instead of the normal $4 each (limit of 10 rolls total, payable in USD or BTC). If your rolls of paper have a white core, you have the original 10 year paper and are eligible for this offer. If your rolls have a black core, you already have the new 20 year paper. I will be sending this offer over email to customers with the 10-year paper in the near future. |
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Hi, I've had this Little Single for about 2 weeks, and it's been hashing flawlessly in an open area with a fan blowing on it at about 32GH/s. The item is for sale here: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=121163742788The item also includes a Raspberry Pi Model B with an SD card preloaded with mining software (cgminer) so all you have to do to start mining is enter your worker login details. Thanks! |
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Hi everyone, everything for Piper ( https://piperwallet.com ) is coming along quite well and according to schedule. First, the good newsToday we received some new paper with a 10 year image life, and our test prints appear to be good so far. To be specific, we now have rolls of appleton paper of grade 400-2.1. You can see the different paper grades on this chart: http://www.appletonideas.com/Appleton/jsps/pdf/thermal/Storage%20and%20Shelf%20Life.pdf?0912We are open to obtaining even higher grades with a longer image life, but we can't seem to find a source of it in the 2.25" wide x 50' long format or the 2.25" wide x 55' long format. We've used our best google-fu but the best we can find is the 400-2.1 grade paper. So if you can find a higher grade, we will buy it and ship it with Piper! Please let us know if you find anything! We'll give you free stuff in return  Second, the better newsOur enclosure manufacturer has just shipped our enclosure order, and according to the tracking number it's scheduled to arrive 5 days earlier than we had planned. So you might just get your Piper a bit earlier than you expected No guarantees though! Third, we need your help!We're finalizing the software and we need to know what you want Piper to include. Piper is running on Debian (Raspbian specifically) Linux, so any Linux packages that you want, any Python libraries or development environments that you guys want, let me know. We currently have vanitygen and a local copy of bitaddress.org on Piper, and we're looking to add electrum as well. The current Piper install uses about 2GB and we put 4GB SD cards in Piper, so we have 2GB free to use for more software. Thank you everyone for your support so far! I'm so excited to get Piper into your hands so you can start doing cool things with it. |
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Hi everyone, I'm gearing up to start shipping Piper (link: https://piperwallet.com ) and I want to know what software you guys want on it. So far, I have vanitygen and bitaddress.org, and I'm thinking that adding electrum would be nice because then you can sign transactions offline and whatnot. So what else should Piper have? Any other bitcoin utilities that are linux compatible that you would put on a dedicated offline linux bitcoin device if you were making one for yourself? Armory? brainwallet.org? Thanks for your support everyone! |
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Now accepting orders for Piper shipping July 30th!Hi everyone, we've been hard at work getting Piper ready for you, and we're ready to start taking orders. Right now, we're taking orders in both Bitcoin and USD.If you wish to pay with Bitcoin, you can do so directly on our site https://piperwallet.com. If you wish to pay with USD, please do so through our Kickstarter located here http://www.kickstarter.com/projects/299052466/piper-a-hardware-based-paper-wallet-printer-and-moIf Piper sells out on Kickstarter we will open USD payment directly on our site https://piperwallet.comBitcoin orders will be shipped in the order that they are received, so place your order now!Kickstarter orders will be shipped depending on which "reward" you choose, with some shipping in the first batch July 30th and some in the second batch. Here are some of the things we've accomplished in the past month: - We've completely rewritten the firmware to be event-driven instead of polling-based
- We posted our source code on http://github.com so that you can see that Piper generates it's bitcoin keypairs in a secure fashion
- We've printed over 500 paper wallets for testing
- We designed an enclosure and went through 4 manufactured prototypes of it
- We built a shopping cart system for the website
- We got a Kickstarter project approved despite an initial turn-down where Amazon payments closed our account due to our product being bitcoin-related
- We subjected Piper to 26 of the Dieharder tests of randomness to prove that the private keys generated by Piper are truly random. And it passed every single one with flying colors.
Please report any errors that you have when ordering using the shopping cart and ordering system on piperwallet.com. We wrote it ourselves and it hasn't been tested on a large scale yet so there may still be bugs. Please bear with us, and feel free to contact us anytime at glitch0+pipersupport@gmail.com Thanks so much everyone for your support so far, the community has been really amazing! 
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Hi everyone, Piper is almost ready to ship! I want to publish the source code so everyone can see exactly how the keys are generated and feel safe ordering Piper. The github is here: https://github.com/piperwallet/PiperIf you're interested in the actual keypair generation and not the printing, you'll want to check out genkeys.py. As I said in other threads, it uses vanitygen to generate the public/private keypair. The source for vanitygen is included and you can easily build it from source by simply typing "make" in the vanitygen directory. You can type "sha256sum vanitygen" and then "sha256sum ../Printer/vanitygen" to verify that the binary you just compiled matches the one run when you press the button on the printer itself. This is my first commit after cleaning up the code, so please bear with me if the code isn't super clean. Also a special thanks to the very talented Michael Palmer (bitcointalk forum name moltenmich) who did the branding for Piper and came up with a bunch of great logos to choose from. Check out his portfolio here: http://www.michpalmer.com/Thanks everyone and as always check out https://piperwallet.com for more info! |
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Hey everyone, I just wanted to post an update about the status of Piper, the paper wallet generator and printer. We've changed the design of the paper wallets to a new one created by Jason Sawtelle. A picture is below:  We've also added some new features. Piper now has 2 modes: Remember mode and Forget mode. When Piper is in remember mode, all private/public keypairs will be stored on Piper's internal memory. If you plug in a USB flash drive, Piper will automatically copy the stored keys to the flash drive. When Piper is in forget mode, the keypairs will not be stored and the keys will exist only on the actual paper themselves. The mode can be selected with a switch on the top of the unit. This video shows a demo of that functionality, and also the new wallet design as well: http://youtu.be/v5jmFJN1_csWe upgraded our paper to one with a 7 year image life (assuming the paper is stored in cool, dry office filing type conditions). We're also working on a new foldable design tailored for use with tamper-proof holographic stickers, as an option. You can always use your own printer with Piper's USB port, if you like. Finally, we are proud to announce that Piper has passed the 26 tests of randomness from the Dieharder suite ( http://www.phy.duke.edu/~rgb/General/dieharder.php) We tested /dev/urandom with every test rated "good" or higher in the Dieharder suite and Piper passed them all (except for the RGB Generalized Minimum Distance Test which is clearly broken since it reports a p-value of 0.00000 and fails on every other system we could get our hands on as well). Since Piper uses vanitygen to generate it's keypairs, and vanitygen uses /dev/urandom for it's random seed, we can say that the keys generated by Piper are safe. Piper actually has a hardware random number generator built into the SoC that it uses to ensure that it has sufficient entropy to generate cryptographic keys. Piper comes with the shell script used to run the Dieharder tests, so you can test your own unit if you like. Here's the results of a run of all 26 tests: http://piperwallet.com/dieharder-results.txtThe enclosure design was sent to the manufacturer today and I should be receiving a prototype enclosure towards the end of the week, so I'll post pics when it comes in the mail. Thanks for your support, everyone! More info can be found in the FAQs here: http://www.piperwallet.com |
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Announcing Piper, a hardware based bitcoin paper wallet generator and printer. Learn about Piper and see a prototype in action here: http://youtu.be/XZ2myql_i8wPiper is composed of a tiny linux-based computer, a small printer, and a single button. Pressing the button causes the computer to generate a public/private key pair, and then print the keypair along with QR codes. Piper also has an HDMI port and a USB port, so you can hook it up to a TV/Monitor and Mouse and Keyboard and customize your prints, or just hack Piper to do whatever you want. You can even hook up your own printer to the USB port and print using it. Piper has no internet connectivity, so your bitcoins are guaranteed to be safe. No more hassling with LiveCDs. Just boot up Piper and you're ready to go. Piper will be shipping in June for $120 or  (BTC value may change and will be based on whatever $120 is worth when we send out the invoices) If you want to buy Piper, you can preorder on the http://www.piperwallet.com site (pay later). You can get more info here on the FAQ page: http://www.piperwallet.comThanks everyone, and feedback appreciated! Edit: Added slightly better video |
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Check this out: http://business.ftc.gov/documents/alt051-selling-internet-prompt-delivery-rulesFor definite delays of up to 30 days, you may treat the customer's silence as agreeing to the delay. But for longer or indefinite delays - and second and subsequent delays - you must get the customer's written, electronic or verbal consent to the delay. If the customer doesn't give you his okay, you must promptly refund all the money the customer paid you without being asked by the customer. Seems like BFL has to refund everyone's money since they didn't get consent from their customers for the delay. Has this been discussed already? If so, just ignore/delete this thread. |
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Announcing a new website: http://www.cards4bits.comSurprise someone that you care about with a thoughtful postcard in their mailbox. Get people talking about Bitcoin by sending them a Bitcoin-themed postcard. Send a birthday postcard to show that you remembered.Cards for Bits is a site that lets you send postcards with Bitcoins. That's right: You send us a few bitcents and we print and mail a postcard with your image and message of choice anywhere within the US. (Other countries coming soon!) For the front of the postcard (image side), you can upload your own image, or choose from one of our premade postcard images. We have more Bitcoin-themed designs by a world-class designer in the works, so check back soon for new postcard designs! For the back of the postcard (address/text side) you can have text styled anyway you want (colors, sizes, font faces, etc), you can even have images. The site is also accessible from these domains, so feel free to use any of these if they're easier to remember: http://www.cardsforbits.comhttp://www.cards4coins.comhttp://www.postcoins.comhttp://www.cards4bits.comI know there's room to add a ton of features, so what features would you guys like to see? Is there any interest in an API? In today's connected society, nobody expects to receive anything fun in the mail. For many, a postcard would be a welcome surprise in a stack of bills. Surprise someone today!Thanks everyone! |
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Announcing a new website: http://www.cards4bits.comSurprise someone that you care about with a thoughtful postcard in their mailbox. Get people talking about Bitcoin by sending them a Bitcoin-themed postcard. Send a birthday postcard to show that you remembered.Cards for Bits is a site that lets you send postcards with Bitcoins. That's right: You send us a few bitcents and we print and mail a postcard with your image and message of choice anywhere within the US. (Other countries coming soon!) For the front of the postcard (image side), you can upload your own image, or choose from one of our premade postcard images. We have more Bitcoin-themed designs by a world-class designer in the works, so check back soon for new postcard designs! For the back of the postcard (address/text side) you can have text styled anyway you want (colors, sizes, font faces, etc), you can even have images. The site is also accessible from these domains, so feel free to use any of these if they're easier to remember: http://www.cardsforbits.comhttp://www.cards4coins.comhttp://www.postcoins.comhttp://www.cards4bits.comI know there's room to add a ton of features, so what features would you guys like to see? Is there any interest in an API? In today's connected society, nobody expects to receive anything fun in the mail. For many, a postcard would be a welcome surprise in a stack of bills. Surprise someone today!Thanks everyone! |
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Announcing the BitSpot iOS app - An iOS app where you can view the current Bitcoin exchange rate in USD or BTC right next to the spot prices for precious metals. I tried to keep the user interface clean, simple, and easy to use. Simply tap on a row to change the currency to BTC, and tap again to switch back to USD. Pull to refresh the values. The BTC price comes from MtGox but I will include more exchanges if this is a desired feature. Thanks everyone, and please give me feedback/feature requests and report any bugs you encounter. Link to app: https://itunes.apple.com/us/app/bitspot/id632993426?ls=1&mt=8Screenshots:   |
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Ripple is currently closed source and controlled by a small group of people who reserved 20 billion XRP for themselves. People say they will open source it eventually but they won't do it now because they don't want to lose control.
Is this not against everything that bitcoin stands for? Collaborative development, healthy competition of cryptocurrencies, many eyes looking at the source code to try and find bugs and security issues. So then why is Ripple still closed source?
Simply because the creators want to get rich from it. As I stated above, they kept 20 billion of the 100 billion total XRP. They want THEIR VERSION of Ripple to gain legitimacy so that they can sell those coins and become rich. If someone were to fork ripple and make a better version, it would be beneficial to EVERYONE except the founders of the ripple. And this is why, plain and simple, Ripple is a scam. They're deliberately hurting and hindering development of the Ripple protocol to make some money themselves. They will only open source it when there's a guarantee that their 20 billion XRP will be worth something.
Imagine if Satoshi had premined 4,200,000 BTC and kept it JUST FOR HIMSELF. Everyone would be screaming what a huge scam Bitcoin is. This is the situation that Ripple is in, where the founders are keeping 20% (!) of the total currency.
People say "but the XRP is just designed to be an anti spam measure, it's not a currency, it won't have value" but in order for it to work effectively as an anti-spam measure, XRP MUST HAVE VALUE. The creators of Ripple know this, and if XRP's are even worth a single penny each, the creators have 200 million dollars.
If you like the idea of Ripple, please, create your own OPEN SOURCE version of it. Other people, including myself, will contribute and make it a million times better than the current version of Ripple. And it will be owned by the community, not a bunch of shady businessmen trying to get rich quickly. Let's not forget that the owners of ripple BOUGHT it, and they expect to make a return on their investment.
TL;DR; In it's current incarnation, Ripple is a get rich quick scheme for it's founders. Don't let the shady businessmen who bought it pull the wool over your eyes!
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Announcing BitSpot.me - A website where you can view the current Bitcoin exchange rate in USD or BTC right next to the spot prices for precious metals. I tried to keep the user interface clean, simple, and easy to use. Simply tap or click on a row to change the currency to BTC, and tap again to switch back to USD. The page automatically updates all the values every 30 seconds. The site should work well on the desktop but looks best on a mobile browser. The BTC price comes from MtGox but I will include more exchanges if this is a desired feature. I also developed a BitSpot iOS app which is currently waiting for review in the iPhone App Store (it should take about a week). If there's demand, I'll create an Android app too. The domains BitPrice.me and BitSpotPrice.com also redirect to BitSpot.me so feel free to use any of those domains. Thanks everyone, and please give me feedback/feature requests and report any bugs you encounter. Edit: added screenshots   |
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So the biggest security threat to the blockchain.info wallet, IMO, is someone somehow injecting javascript that snatches your account password.
Should we create a way to tell if the code has been changed or been compromised? It could be as simple as a site called blockchaininfocheck.com, and it would simply download the blockchain.info site to your browser and do an MD5 hash on the relevant javascript that handles the online wallet functionality. It would then compare the generated MD5 to an MD5 of a known good copy of the blockchain site. If the MD5's match, it could tell you and forward you to blockchain.info since it has been deemed safe.
This could also be developed as a browser extension/plugin.
In this way, an attacker would need to compromise the blockchain.info site AND the 3rd-party blockchaininfocheck.com site.
Does something like this already exist?
Discuss.
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