If the wallet.dat isn't located on a hard drive or memory it cannot be used by anyone.
The piece of paper can make the wallet.dat appear from physical to digital.
I like this.
Topic: [Guide] Saving your wallet.dat to PAPER - page 2. (Read 2212 times)
its just another form of backup 
I've backed up some private keys to paper in the past, and found it very useful when i had to go and recover them
I've backed up some private keys to paper in the past, and found it very useful when i had to go and recover them
what problem do you see this solving? just curious.
Basics
A program called PaperBack(Win32 at this time, Open Source'd) allows a user to encrypt and print a paper copy of a file, to restore the file you scan or provide a image of the printed paper and it dumps out the file
How to use with you wallet.dat
1) Download PaperBack from the location provided before
2) Open PaperBack
3) Open Options and select the options you wish to have (For more info, read the page provided above)
4) Drag and drop the file (wallet.dat) into the window for printing
4.5)File -> Save to bitmap, It will ask you what file to encode, and then where to save the bitmap
Restoring your Wallet.dat
1)Scan or provide the bitmap of the backup
2)Wait for processing
3)Save wallet.dat
Example
(Due to me not having a printer, I had to kinda fake it)
Here is the first Image: http://imgur.com/8b7nz
Its a empty wallet.dat with Encryption on (AES-256), standard options past that
Here is the damaged copy, Opened in GIMP saved as a JPEG at 4% Compression, then converted back into a Bitmap
http://imgur.com/nKKLO
ECC had to correct 56bytes of bad data.. once decoded the md5 hashes where the same!
Here is a screenshot asking for the password (The password is "bitcoin")
http://imgur.com/OEj6G
Extras
Found this while googling around,
http://ronja.twibright.com/optar/ Its GPL'd and seems to be better for data storage and recovery, but I hear its harder to use
A program called PaperBack(Win32 at this time, Open Source'd) allows a user to encrypt and print a paper copy of a file, to restore the file you scan or provide a image of the printed paper and it dumps out the file
How to use with you wallet.dat
1) Download PaperBack from the location provided before
2) Open PaperBack
3) Open Options and select the options you wish to have (For more info, read the page provided above)
4) Drag and drop the file (wallet.dat) into the window for printing
4.5)File -> Save to bitmap, It will ask you what file to encode, and then where to save the bitmap
Restoring your Wallet.dat
1)Scan or provide the bitmap of the backup
2)Wait for processing
3)Save wallet.dat
Example
(Due to me not having a printer, I had to kinda fake it)
Here is the first Image: http://imgur.com/8b7nz
Its a empty wallet.dat with Encryption on (AES-256), standard options past that
Here is the damaged copy, Opened in GIMP saved as a JPEG at 4% Compression, then converted back into a Bitmap
http://imgur.com/nKKLO
ECC had to correct 56bytes of bad data.. once decoded the md5 hashes where the same!
Here is a screenshot asking for the password (The password is "bitcoin")
http://imgur.com/OEj6G
Extras
Found this while googling around,
http://ronja.twibright.com/optar/ Its GPL'd and seems to be better for data storage and recovery, but I hear its harder to use
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