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The picture of the car is not protected by hard crypto until it's inserted into the blockchain. Until it is inserted the trust chain breaks at the questions of
by bb88 6y ago
The picture of the car is not protected by hard crypto until it's inserted into the blockchain. Until it is inserted the trust chain breaks at the questions of:
When was it taken?
Who was taking the picture?
What is the picture of? The car to be protected? Or someone else's car.
Blockchain works for currencies, since currencies are just numbers in a ledger. And numbers can be easily secured with strong crypto.
- hirsin 6y ago"Secured by hard crypto" is item fifteen on someone's priority list after usability, cost, reliability, speed and the font used on the marketing page. Note that none of the questions you raise are answered by protecting a jpeg with hard crypto... (If that was the point, my apologies for re-explaining it).
- bb88 6y agoIt was, but thanks for clarifying. :)
- sebmellen 6y agoSee my response to the grandparent comment for more details. > When was it taken? We currently verify this by including the last Bitcoin block hash in the photo, giving us a ~10 minute time window in which the photo was taken. Also, the whole handoff period is under 20 minutes, so the transporter only has access to the cars for 20 minutes (with many others around), before a timestamp is required. > Who was taking the picture? We've never run into this as a problem, but we can require a continuous video including a selfie of the transporter. > What is the picture of? The car to be protected? Or someone else's car. This we verify by checking the VIN in the frame (frame number check).
- chaps 6y agoYour company sounds pretty awful to work for, where suggestions like, "Watch the employees at all times" are apparently taken seriously. Had an interview for a company like that once, where they required that no work-related communication happen outside of their chat client. And they had cameras to check for that. The turnaround rate was through the roof. I genuinely hope that you'll try and solve these problems using other methods. Building these systems just makes your employee's lives hell.
- edoceo 6y agoThey're only making their clients employees lives hell.
- sebmellen 6y agoWhat? We don't do any of what you describe. When I said "continuous video", I was referring to the transporter taking a video of the state of the car — two minutes max. No livestream or tracking or anything. I don't watch or control my employees or the transporters (they are just a client of a client). I don't even see the pictures they take before transport, usually just our customer. It feels like you're wilfully misunderstanding something.
- monsieurbanana 6y agoThe only possible explanation to your comment is that you replied to the wrong thread.
- bb88 6y agoI couldn't find this link originally, but this is effectively what I'm talking about. https://shkspr.mobi/blog/2018/06/how-i-became-leonardo-da-vinci-on-the-blockchain/ https://shkspr.mobi/blog/2018/06/how-i-became-leonardo-da-vi...