this post was submitted on 03 Sep 2026
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It's hooked up to a database to make sure it's not a fake ID.
Is that really what’s going on? I always thought the barcode just contained the ID number and your information. Can probably be validated that the format is correct very easily, but you can use the correct format with incorrect data easily.
I assumed the scan was still offline validation. Because if the database isn’t networkable from their store, I imagine they aren’t causing any issues in the sales process. So you would only need to precompile and print a valid barcode with correct-looking data.
Probably won’t work for a police dispatch, who I’m sure are going to use online validation when they run the ID. But I’d swear that level of sophistication isn’t in gas stations yet.
I don't know what kind of cards you have over there, but couldn't it just contain all required information including photo, digitally signed by the government?
Wouldn't need the internet.
Yeah, it could be digitally signed for offline verification. But I’m doubtful there’s enough standardization going on that corporations are integrating signature verification right there in the POS system. They’d need the public keys from the government, presumably. That doesn’t sound too difficult but also, setting up a process to get that info for all 50 states would probably be a mess. Do the states even sign the info to start — that’s another question.
I think the infrastructure can be deployed. Though, I get the impression it would take more coordination than we actually see here in the wild.
At best they are keeping an audit trail to be sure the clerk didn't sell alcohol to an underage person. But even if they aren't already I figure it will get retained and used in some manner. Marketing, insurance, who knows? Lots of data brokers would buy information on who buys alcohol.
I highly doubt that