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Comment on guys what the heck theyre putting micro chips in the cheese and using blockchains to track the micro chips

using blockchains to track the movement of goods, like from ports or for cheese, is probably their only non-BS use case other than volatile currencies

We already do this with barcodes and QR codes, which you can just make with a printer.

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usrtrv@sh.itjust.works ⁨2⁩ ⁨days⁩ ago
No? Barcodes and QR codes do not have enough information for unique identification. (Well they could but they start getting bigger and bigger)

But the real issue is needing these codes tracked and audited in a public manner. Instead of having a third party company trusted with all the cheese, you use a Blockchain with a public ledger. This doesn’t even require much processing power since there’s no incentive to mine as many blocks as possible.

I hate cryptobros but logistics is a good use for the tech. Tech is tech, not all use cases are bad.

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- NaibofTabr@infosec.pub ⁨2⁩ ⁨days⁩ ago
  
  Barcodes and QR codes do not have enough information for unique identification. (Well they could but they start getting bigger and bigger)
  
  This is not really true. A 16-digit decimal code gives you 10 quadrillion unique numbers. FedEx handled ~3 billion packages in 2024, so at that rate it would take them more than 3 million years to use up the ID space. You don’t need ridiculously long strings for useful package ID codes.
  
  If you stored the 16 digits as ASCII characters (7 bits each) it would be all of 112 bits of data. The Micro QR format is more than enough to represent that data, with room to spare for error correction. If you used alphanumeric instead of decimal you’d have 62^16 unique IDs (UC + LC + 0-9), still only 16 ASCII characters (112 bits), and at that point you’re more worried about the sun burning out than you are about running out of package ID codes.
  
  But the real issue is needing these codes tracked and audited in a public manner. Instead of having a third party company trusted with all the cheese, you use a Blockchain with a public ledger. This doesn’t even require much processing power since there’s no incentive to mine as many blocks as possible.
  
  If you want the tracking to be useful, then every time a package passes through a handling station the ID needs to be scanned and the ledger updated indicating the transfer of the package ID from one station to the other. Then every node on the blockchain network needs to update their copy of the ledger with the new transaction data. Never mind mining, if you’re handling millions of packages per day then updating the ledger will create a stupid amount of network traffic and just eat processing power. Also, correcting any errors that get written into the ledger due to some handling failure will be extremely difficult if not impossible.
  
  Without mining, what incentive would there be for anyone besides the actual shipping company to host a blockchain node for this? How would it not still be “a third party company trusted with all the cheese”?
  
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Little8Lost@lemmy.world ⁨2⁩ ⁨days⁩ ago
QR codes are just symbols in a camera readible way and barcodes numbers in a camara readible way.
A storage medium for 0´s & 1´s like a USB stick or a disc but way less storage.

They dont add any security, heck when you would have looked at barcodes you would likely have realised that the same product uses the same code (and not each one being unique)

Their use cases are cashiers dont have to manually find/type each product into their terminal but have a scanable ID & QR Codes are mostly to open websites as users without having to type a potentionally long URL.
In booth cases they remove the human error.

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- NaibofTabr@infosec.pub ⁨2⁩ ⁨days⁩ ago
  
  QR codes are just symbols in a camera readible way and barcodes numbers in a camara readible way.
  A storage medium for 0´s & 1´s like a USB stick or a disc but way less storage.
  
  Yes, a QR code is a representation of digital data. There are different versions which can represent different amounts of data. The represented data can be anything that you want, as long as the scanning device can interpret that data as something useful.
  
  They dont add any security,
  
  An RFID tag holding a blockchain token string also does not add any security, it’s just a different thing holding an alphanumeric value. They could just use RFID tags without the blockchain, the result would be the same.
  
  But my point is mostly that this is already an entirely solved problem, you don’t need very many bits to store a useful unique ID code, you certainly don’t need a blockchain-token-value amount of bits, and a printed paper tag is cheaper, easier to manufacture, and less environmentally impactful than a microchip.
  
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