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> Does anyone from the crypto community know if there exists a solution for a problem like that? Technically it can be done, and in an obfuscated way no less w

> Does anyone from the crypto community know if there exists a solution for a problem like that? Technically it can be done, and in an obfuscated way no less without relying on self-reporting, which is always going to skew things; consider the following: - At boarding have a scale underneath a padded area when scanning each and every passenger (calibration required): this will create a unique ID that corresponds with the boarding pass and seat number and weight while the ticket is being scanned, how long this takes is anyone guess as I'm not an engineer. - Upon acquiring the weight of each passenger, create a hash for that ID and measured weight, and use that to associate the measured weight rather than the ID, such that it creates an aggregate of each and every boarded passenger with info rather than Jane Doe 55Kg (ID/weight). Record that info into a DLT/blockchain held by a series of parties to validate independently. - With that info you can discern individual weights, without actually having an identity attached to said weight measurement. And in real time, no less. This, albeit crudely lined out as its a rather lengthy process to describe, is the basis for why blockchain technology/DLT could be useful for voting as it was used in Sierra Leone's 2018 election: https://techcrunch.com/2018/03/14/sierra-leone-just-ran-the-first-blockchain-based-election/ https://techcrunch.com/2018/03/14/sierra-leone-just-ran-the-... https://www.agora.vote/ https://www.agora.vote/ PS: I don't think a token is necessary, simply having the hashed info recorded onto a blockchain is enough, assuming its held by independent parties to be able to validate.

emilfihlman 7y ago
What's the blockchain for? It serves no purpose here.
- Melting_Harps 7y ago
  > What's the blockchain for? It serves no purpose here. Non-trust based verification/consensus requires that many parties, ideally opposing ones, have the same data/ledger to validate the information desired: in this case, real-time acquisition of passenger weight. You could argue SQL does the same thing, and you're probably right at least on paper, but it cannot be independently validated as a blockchain can. The idea being, if all have a copy of the information then it isn't subject to custodial manipulation, and corruption. I see it as having the same features that open-source software provides: in that it allows people to look through the source code to ensure it doesn't contain some malware or some bug in the software and can do so independently from the owner/company of said software.
BoiledCabbage 7y ago
Really? A blockchain? It's parody at this point. The goal is to get the summed weight of all the passengers. In step 1 of your plan you weigh each and every passenger. If that really is your plan then step 2 is to sum them! Call the sum() function! How in the world did you turn that into 5 steps involving a blockchain? It's the epitome of the blockchain obsessed. Create unrelated problems just to claim "see a blockchain fixed them." You've already weighed the passengers! The way to get their summed weight is to sum them!
- Melting_Harps 7y ago
  Privacy? If the goal is only simply to get an accurate sum , then you're right; but I was alluding to how it can be done in a private obfuscated/trustless verifiable manner, and provided how that was done in a previous usecase. I think this response/mindset is very telling of the Silicon Valley mindset FAANG vetts for and how it functions: get what data we need to repackage and sell off, consequences of privacy and disclosure responsibility be damned. When it blows up in our face we'll probably just have to sit in court and make this face [1] and pretend we didn't know better that we were doing creepy things with People's information, but promise to do a better job next time. 1: https://i.ytimg.com/vi/lpQwPCMTpKE/hqdefault.jpg https://i.ytimg.com/vi/lpQwPCMTpKE/hqdefault.jpg
  - BoiledCabbage 7y ago
    "but I was alluding to how it can be done in a private obfuscated/trustless verifiable manner," Requirements nobody asked for. Which is exactly what seems to be annoying about the blockchain "enthusiasts". A: I'd like a salad for lunch B: Here's a salad that takes 15 steps to deliver via blockchain A: I don't need, nor asked for all of this blockchain'ed salad. B: It's clearly superior, it's distributed and with a ledger, private and trustless. You just don't understand the superiority of it. Use blockchain to solve problems that have requirements around the value it provides. Not find a way to force every problem to fit into a blockchain.
    - Melting_Harps 7y ago

emilfihlman 7y ago

What's the blockchain for? It serves no purpose here.

Melting_Harps 7y ago
> What's the blockchain for? It serves no purpose here. Non-trust based verification/consensus requires that many parties, ideally opposing ones, have the same data/ledger to validate the information desired: in this case, real-time acquisition of passenger weight. You could argue SQL does the same thing, and you're probably right at least on paper, but it cannot be independently validated as a blockchain can. The idea being, if all have a copy of the information then it isn't subject to custodial manipulation, and corruption. I see it as having the same features that open-source software provides: in that it allows people to look through the source code to ensure it doesn't contain some malware or some bug in the software and can do so independently from the owner/company of said software.

BoiledCabbage 7y ago

Really? A blockchain? It's parody at this point. The goal is to get the summed weight of all the passengers. In step 1 of your plan you weigh each and every passenger. If that really is your plan then step 2 is to sum them! Call the sum() function! How in the world did you turn that into 5 steps involving a blockchain? It's the epitome of the blockchain obsessed. Create unrelated problems just to claim "see a blockchain fixed them." You've already weighed the passengers! The way to get their summed weight is to sum them!

Melting_Harps 7y ago
Privacy? If the goal is only simply to get an accurate sum , then you're right; but I was alluding to how it can be done in a private obfuscated/trustless verifiable manner, and provided how that was done in a previous usecase. I think this response/mindset is very telling of the Silicon Valley mindset FAANG vetts for and how it functions: get what data we need to repackage and sell off, consequences of privacy and disclosure responsibility be damned. When it blows up in our face we'll probably just have to sit in court and make this face [1] and pretend we didn't know better that we were doing creepy things with People's information, but promise to do a better job next time. 1: https://i.ytimg.com/vi/lpQwPCMTpKE/hqdefault.jpg https://i.ytimg.com/vi/lpQwPCMTpKE/hqdefault.jpg
- BoiledCabbage 7y ago
  "but I was alluding to how it can be done in a private obfuscated/trustless verifiable manner," Requirements nobody asked for. Which is exactly what seems to be annoying about the blockchain "enthusiasts". A: I'd like a salad for lunch B: Here's a salad that takes 15 steps to deliver via blockchain A: I don't need, nor asked for all of this blockchain'ed salad. B: It's clearly superior, it's distributed and with a ledger, private and trustless. You just don't understand the superiority of it. Use blockchain to solve problems that have requirements around the value it provides. Not find a way to force every problem to fit into a blockchain.
  - Melting_Harps 7y ago