inazar's avatar
This one time, I had to type a Z-modem transfer program into a DOS machine, as a hex dump through debug.com; I ended up with the same method of checking integrity as $banks, which was to CRC32 each chunk of the program.

It's surprising how useful checksumming is, and in how many contexts it crops up.
20after4's avatar
After the long walk, three miles in the snow, uphill both ways, just to get to the keyboard...