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The server verifying just adds a security hole - the makers of this site can fake a qr code for any time & date. Using info from the the block is safer as you
by IanCal 5y ago
The server verifying just adds a security hole - the makers of this site can fake a qr code for any time & date.
Using info from the the block is safer as you don't need to trust the host of the system.
The point (like showing a newspaper) is to prove the image / video was taken no earlier than that time.
- neilv 5y agoGood point. And the people who decide what the newspaper front page will display for a given day are constrained to some degree by newsworthy events on that day. That thought does does cast an additional possible funny interpretation on a photo I took of the adjacent street newspaper vending boxes of the two major Boston papers one day. The Boston Globe main headline was of a serious major news event. The Boston Globe above the fold was mostly filled with a photo of some political or sports figure, and a lowbrow muckraking headline about them. A funny (highly implausible) theory is that the Herald editor/publisher had needed to determine the front page for a paper issue, days or more into the future, such as for faking proof-of-life on/after a date, and then had to run that front page. :)