It's a unique string of characters next to the name of the poster. It's created using a non-reversible function from a password or passphrase. So for example, Anonymous5's tripcode is !!9O2tecpDHQ6. And White House Anon's is !!1hh8QgZC3Iv as you can see here. That's how we know it's him because no-one else has the password for that code. It's an anonymous form of authentication.
view the rest of the comments →
paulf ago
Wrong tripcode. It's not the real WHA and the writing style is clearly not the same.
DarkMath ago
What's a tripcode?
paulf ago
It's a unique string of characters next to the name of the poster. It's created using a non-reversible function from a password or passphrase. So for example, Anonymous5's tripcode is !!9O2tecpDHQ6. And White House Anon's is !!1hh8QgZC3Iv as you can see here. That's how we know it's him because no-one else has the password for that code. It's an anonymous form of authentication.
DarkMath ago
"And White House Anon's is !!1hh8QgZC3Iv"
What's to prevent a fraudulent person pretending to be WHA and simply copying that code?
paulf ago
Good question - you can't. It isn't part of the username, it's added by the board software only after you've typed in the correct password.