I know what a hash is.
Bagster’s post says that there are new Q posts without the trip code (hash).
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You have no idea how large of a fool you just made yourself look. I pitty you for the lack of self identification you live with.
No wonder you are to weak to exist in The Forbidden City. If you did, you would already know the answers and not look like such a soy chugging, latte with skim milk ordering, Starbucks card holder that you look like with every post here.
Most imageboards and 2channel-style discussion boards allow (and encourage) anonymous posting and use a system of tripcodes instead of registration. A tripcode is the hashed result of a password that allows one's identity to be recognized without storing any data about users. Entering a particular password will let one "sign" one's posts with the tripcode generated from that password, while trying to take another user's tripcode and compute their password from it (for instance, to make posts that appear to come from a particular person) is computationally difficult. For those who want a custom tripcode, however, there are custom tripcode generators (which are technically tripcode crackers) available, such as Meriken's Tripcode Engine[1] and MTY_CL.[2] In general, anonymity is considered to be one of the advantages of an imageboard, and some boards have from time to time removed the ability to post with a name altogether (known as "forced anonymous/anonymity").
I pity you, too.