Sean Schouten wrote: > On 5/30/07, Peter P. wrote: > >> Joshua Shriver gmail.com> writes: >> >> The problems I can see are: >> >> a) Assuming the Captcha is a piece of original book text warped a little, >> and >> the exact OCR of it is not available, how does one validate the entry >> supplied >> by the reader, since there is no reference to compare it against ? >> Majority >> scoring ? It would be nice to know. >> > > > > That's what they seem to be doing. Doesn't this still mean that the early > bird can type anything he or she likes in response to the capcha in order to > get access to the site in question? I find it a great idea, but it just > creates many more questions. > > Sean. > My understanding of the system is that they have one known word (ie dictionary) and one unknown word (from book) person enters known word for auth, and that gains them access, unknown word if it agrees with 3 other people is then used for the text. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist