Opendime is a small USB stick that allows you to spend Bitcoin like a dollar bill. Pass it along multiple times. Connect to any USB to check balance. Unseal anytime to spend online. Trust no one.
Multi-language user interface: 中文 • 日本語 • English • Portuguese • Français • Deutsch • Русский
How to use Opendime:
Acts like a read-only USB flash drive. Works with any computer, laptop, or phone. A QR Image and Text files inside contain Bitcoin address and helpful information.
The private key is generated inside the device, and is never known to any human, not even you!
The Bitcoin world changes fast but Opendime is built on the fundamental Bitcoin features that haven't changed in five years.
Give an Opendime to anyone and they don't need to worry that you can take back the funds later. The private key is strictly in the device itself.
This is physical Bitcoin as it was meant to be: just hand it to someone and they've got it. Pass it on multiple times! As simple as a handshake. No miner fees, no confirmation delays.
Uses Bitcoin message signing, normal (non HD) bitcoin payment addresses and private keys in WIF format.
Bitcoin is an innovative payment network and a new kind of money.
Installation instructions here.
Each Opendime holds one private key. It publishes the public key (payment address) to anyone and never reveals the key until "unsealed".
Yes. It's like a piggy-bank. You must destroy it to spend the funds. At first that seems expensive and wasteful, but it's a key part of our security model: you can trust a sealed Opendime, and it's obvious when it's been opened.
Since we are putting private keys into a physical form you can trust, you can simply hand around Opendime units to move amounts around. There are no pre-defined Bitcoin amounts with Opendime either. Store as much or as little as needed.
@xcsler OpenDime have absolutely everything right. Design, hardware, philosophy, usability, future expansion. Its absolute genius, plainly.— Beautyon (@Beautyon_) November 22, 2016
Since @OPENDIME makes Bitcoin private keys negotiable, it introduces plausible deniability into the network, which thwarts any surveillance.— Jon Matonis (@jonmatonis) December 9, 2016
Awesome Dorian sticker comes with the @OPENDIME #Bitcoin pic.twitter.com/BmdP2401mi— Kyle Torpey (@kyletorpey) May 14, 2016
In wallet nirvana playing with some @OPENDIME pic.twitter.com/QLutdBWMtE— Aya (@ayaLAN) May 20, 2016
@OPENDIME Thank you. OpenDime is a _very_ seductive product, bursting with win!— Beautyon (@Beautyon_) May 20, 2016
Anatomically Correct Satoshi thanks to OPENDIME! • /r/Bitcoin https://t.co/PQ3Htm5zCd pic.twitter.com/aOOud7Oo7Q— Coinkite (@Coinkite) May 10, 2016
Got my OPENDIME today. https://t.co/0kg5LbbMi2 pic.twitter.com/IcpLTrc5ap— Bitcoin EDU (@BitcoinEdu) May 6, 2016
Look what came in the mail today... @OPENDIME physical Bitcoin bearer assets. pic.twitter.com/HIQzoXGqda— mikeinspace (@mikeinspace) May 5, 2016
First batch of @OPENDIME out the door! We just packed a few boxes of these. #Bitcoin #privacy #hardware pic.twitter.com/bUixAFCp1u— Coinkite (@Coinkite) May 3, 2016
Unsealing an @opendime to release the #bitcoin private key. https://t.co/oo8MdrzqRc pic.twitter.com/ZIFOuG97bD— OPENDIME ™ (@OPENDIME) April 15, 2016
Since we joined the Bitcoin revolution in 2013, we've watched the growth of both physical Bitcoin "coins" and hardware wallets with interest. However, the existing options fall short of being a useful means to transact business. We built Opendime to be much more than a another hardware wallet or a physical bitcoin.
We feel that we've created whole new product category: disposable hardware wallets to be used as cash. We're really excited to see what people will do with this. Maybe we'll see whole new economies based on Opendime spring up! That might be a real godsend in some countries that struggle with limited network infrastructure and corrupt governmental systems.
This is just the beginning. We have no idea where it will go from here!
Get a few today so you can be there first!
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