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PaperBack – How to store data on a single A4/Letter sheet

ollydbg.de

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Re: PaperBack – How to store data on a single A4/Letter sheet

#81
post #69
post #36

Earlier quoted context omitted.

Standing outside with a stack of paper, being able to give them to passers-by, staying anonymous and free of network surveillance.

Digitally anonymous and free of network surveillance, sure. Physically anonymous and free of a cop simply walking up and arresting you, not so much...

Definitely not free of digital surveillance

http://www.pcworld.com/article/118664/article.html

Re: PaperBack – How to store data on a single A4/Letter sheet

#82
post #80

Earlier quoted context omitted.

Always doubt your anonymity. Many color laser printers output hidden, self identifying serial codes.

I did not know this, do you have a source?

http://www.instructables.com/id/Yellow-Dots-of-Mystery-Is-Yo...

http://www.pcworld.com/article/118664/article.html

https://en.wikipedia.org/wiki/Printer_steganography

http://seeingyellow.com/

Re: PaperBack – How to store data on a single A4/Letter sheet

#84
post #6

So I'd like this on medium that's a bit more permanent than paper, but with similar information density per kg, and similar re-creatability without having any of the original tools available. I'd like to store data for say 100 thousand years.

DNA? You didn't mention price :)

Re: PaperBack – How to store data on a single A4/Letter sheet

#85
post #6

So I'd like this on medium that's a bit more permanent than paper, but with similar information density per kg, and similar re-creatability without having any of the original tools available. I'd like to store data for say 100 thousand years.

How about 2,000 ~ 10,000 years? http://blog.longnow.org/02008/08/20/very-long-term-backup/

Re: PaperBack – How to store data on a single A4/Letter sheet

#86

Earlier quoted context omitted.

No, sorry, it's not. That's already trivial: Take a microSD card with your info. Put it together with a couple of tablespoons of oatmeal into a tightly and well wrapped plastic package. Swallow it. Travel. Arrive. Poop. Voila. Also, if you bring big stacks of paper it will often be inspected, since a common way of smuggling currency is putting hundred-dollar bills between the pages of books.

I think you (unintentionally?) are proving the OP right. Because it's far easier to swallow and poop out a plastic bag with a microSD card in it than it is to put a piece of paper in your carry-on. Plus--wouldn't full-body scanners catch something like this?

Airport/security full body scanners would not catch something like this. They only image through clothing for the most part. They only image through the top layers of skin. See figure 4 in the linked to document:

http://www.tek84.com/downloads/Holt-Letter2010-12-2.pdf

Re: PaperBack – How to store data on a single A4/Letter sheet

#87

In a slightly similar vein, there was a device that stored data on VHS cassettes as black and white blobs - https://web.archive.org/web/19970110151745/http://www.danmer...

It could up to 3 gigabytes per VHS tape! Wow!

Someone else in the thread posted a link to screenshots of a Linux port: https://news.ycombinator.com/item?id=10246531

Re: PaperBack – How to store data on a single A4/Letter sheet

#88
post #6

So I'd like this on medium that's a bit more permanent than paper, but with similar information density per kg, and similar re-creatability without having any of the original tools available. I'd like to store data for say 100 thousand years.

DNA? You didn't mention price :)

See the front page right now [1]. Price of DNA is currently dropping!

[1] https://news.ycombinator.com/item?id=10246514

Re: PaperBack – How to store data on a single A4/Letter sheet

#89
post #3

Reminds me of this https://en.wikipedia.org/wiki/Cauzin_Softstrip . Magazines would print out their source code and you could scan it in. Of course I had no money to buy such an expensive machine so was relegated to mind numbing typing and the inevitable typos that came with it.

I was just going to post this! http://ecx.images-amazon.com/images/I/51QCW5ehtSL._SS500_.jp...

Re: PaperBack – How to store data on a single A4/Letter sheet

#90
post #33

With HCCB (High Capacity Color Barcode) of which an implementation is Microsoft Tag you can get 1.5 MB with 600dpi color on a A4. If you add the best compression techniques (cmix v7) depending on the source material you could get 8 times as much english text, easily fitting the pearls or religion: Tenach, New Testament, Quran, Mahabarata, The Dhamapada, the Atthakavagga and the Parayanavagga, Rhinoceros and Lotus Sut…

I commend your enumeration of religious and mystic texts.

Yes I was also impressed. But in making the point, the poster surely went overboard - Mahabarata (I just read about it on Wikipedia) is the "longest poem ever written", ten times as long as the combined Iliad and Odyssey, and at 1.8 million words that is going to be hard to fit into 1.5 megabytes even by itself - unless it is massively redundant I don't see how you can do it. The entropy per word has to be about ~1 byte which is cutting it very, very close. Add in all of the other mentioned texts and commentary and I don't buy it.

The mentioned compression (cmix v7) surely won't fit it all http://www.byronknoll.com/cmix.html

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