EG imagine a doctors surgery of 6000 patients has a chain of hashes. the personal data not being the chain. but being a UTXO database of encrypted data. and each new block of daily updated records is updating hashes. not clear text data.
each doctors surgury strand of chain. hass a block or UTXO header that gets added to a master chain. and so the network is not validating what the clear text says. but validating the hashes add up.
and its the doctors and patients in their smaller subchains that validate that personal stuff
ok, but the real question is WHY?!!!
it is not about how it is done it is about whether doing it that way is better than how we are currently doing things.
imagine each doctors clinic/surgery have a little black memorystick that is plugged into a electric wall socket with a usb outlet
that memory stick. is the node. now realise each doctors clinic/surgery has one.
Hahaha. I take some, only that little some, of your opinions with respect because I know you are a technically inclined person, and someone to learn from. But that's slowly going away.
now the health care system can sack all the auditors and data security guys. and just get a janitor replace a memory stick if one develops a fault.
What a world that would be.
letting doctors be doctors and let more of the treasury funds be used for healthcare instead of administration
walk into any doctors clinic and ull see less non-medical staff shuffling papers.
They can do that today without a "blockchain". Why don't they?
less surgery/clinic managers fiddling with numbers so they can vacation 48 weeks a year at others expense
The power of "Blockchain Technology". Amazing.
...
now with all that said there are many places where blockchains are useless, but when there is a scenario that data needs to be in more than one location and edit/append data to it from more than one location. then there can be some advantages.
the more wider field of multiple locations and multiple entities needing more than just viewing privileges. the more a blockchain can be seen as beneficial.
That can be done securely using an SQL database.
Is the "blockchain" not an append-only ledger?