On: The $5000 Compression Challenge

[phkahler]

Here's a more risky solution. Chose an arbitrary large file size. Have the decompressor search the local file system for a file of that specific size and make a copy of it as output. This presumes he's going to have the uncompressed file on the system to verify the output of the decompressor. That may turn out to be a false assumption, but what if...

[log_n → phkahler]

Or just have the decompressor log onto a server and download the original file. Only risk then is internet connection.