41–50 of 51 posts
I have a hard time following the origami. After folding 1-2-3-4, I have a retangular cube. How am I supposed to accomplish fold #5? Sorry for being dense, not an origami guy. Anyone got a pic how how it's supposed to look like?
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Given a public key you can look up the balance in the blockchain. Casascius has a cool system where the private key is hidden behind a tamper-evident hologram so you can be sure money hasn't been removed, but obviously that's not a DIY option.
Of course they can check at the point of sale, but times where paper money is most useful and times where you have immediate access to the blockchain do not exactly overlap. If they can check right then and there, might as well just do it electronically and skip the paper. My point is basically that paper money is a store of value while these "paper bitcoins" are a proxy for a store of value, which introduces problem…
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To be fair, at the bottom of the page he links to source and a zip that you can use to run internally if you so desire. If it concerns you, then run it on your own machine.
The generation could still be deterministic in some way. I haven't looked over the code yet, so I don't know. Even if it is securely created, there's nothing stopping the code being modified to some clients.
Does/will bitcoin make Cypriot (or anyone's) capital controls ineffective?
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So you are saying even hybrid wallets like blockchain.info are unsafe?
Look at how bitcoin.org handles it, see the [?] boxes there: http://bitcoin.org/en/choose-your-wallet
They do client side encryption, js verifier makes sure any server attacks don't affect the wallets directly, allows user to backup their wallets the way they want, has some redudant backup options, two-factor authentication, and so much more. I don't see a reason why not to trust such wallets.
I agree there have been past instances where the server was comproised and users lost their wallets, but with such hybrid wallets if you are taking regular backups of your wallets you are pretty safe.
Am I the only person who can't follow the instructions? What is the finished product supposed to look like?
Where the instructions say fold - you fold 180 degrees, not 90. So the wallet stays always flat. I added the 180 degrees note to the instructions.
I hate dinging hobby projects, but then it's Bitcoin and people seem to be actually trusting hobby projects with non-trivial fractions of their (extremely notional) net worth, so I'll just point out that transferring a public/private key pair which allows people to spend money together over HTTP is not a security best practice.
I don't think you should feel even a hint of remorse, crypto and money are both very serious things. A project with crypto and money at its center is in my mind basically exempt from any margin for error normally associated with a hobby project.
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Look at how bitcoin.org handles it, see the [?] boxes there: http://bitcoin.org/en/choose-your-wallet
But some hybrid wallets like blockchain.info are so secure. They do client side encryption, js verifier makes sure any server attacks don't affect the wallets directly, allows user to backup their wallets the way they want, has some redudant backup options, two-factor authentication, and so much more. I don't see a reason why not to trust such wallets. I agree there have been past instances where the server was compr…
Earlier quoted context omitted.
Look at how bitcoin.org handles it, see the [?] boxes there: http://bitcoin.org/en/choose-your-wallet
But some hybrid wallets like blockchain.info are so secure. They do client side encryption, js verifier makes sure any server attacks don't affect the wallets directly, allows user to backup their wallets the way they want, has some redudant backup options, two-factor authentication, and so much more. I don't see a reason why not to trust such wallets. I agree there have been past instances where the server was compr…
There seems to be some confusion about this project, so I'll try to explain: PaperCoin creates paper Bitcoin gift cards. You put money on the address, then you give the private key to whoever, and now they own the wallet. (Correct me if I'm wrong, I'm not the author.) It all happens client-side using jsPDF, and you can run it locally by downloading the .zip in the footer. It's really not meant to replace any financia…