Quote from: Jet Cash on August 08, 2018, 02:22:53 PM

I can't see my being able to scan a QR code on my burger box, to find out the birth time of the cow that was used to create the burger, and what about Subway?

Yeah, especially considering that burgers are not usually made of stay. It's ground meat (surely mixed with other things). Would they have a list of all the cows they kills and ground up that day with all their b-days etc.?

Quote from: AzatFinrazor on August 08, 2018, 02:31:24 PM

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Could somebody please clarify something for me? The way I understand it, blockchain is a technology that entails many computers in a network maintaining a single ledger. All the computers all work together to make sure the ledger is the same on all computers. Is that about right? If that's right, then what is this article even talking about? I mean, blockchain is basically just a way to store and communicate information, isn't it? Automatically tracking supply chains could be done without blockchain.

Blockchains can use oracles to record data onto the blockchain automatically. For example, blockchains can keep track of the temperature at which food products are stored and record the data onto the blockchain. And since blockchains are untamperable, they provide transparency.

Yeah, I don't doubt that you could automatically record data to a blockchain. You use temperature as an example. That's probably the easiest example because it's just a number that a sensor can give back. When you get into other things discussed here, it's much less straightforward. It would require human input. Even with the temperature, sure maybe the blockchain would be tamperfree, but you could easily tamper with data before it goes to the blockchain. They only thing blockchain offers to this issue seems to be a database that's hard to tamper with. All the talk about cow data on QR codes and stuff is things that could be done completely independently of blockchain.