I believe I have a decent understanding of how Bitcoin works, but sometimes when I read news I stumble upon "the blockchain technology" - blockchain for banks, blockchain for medical records, blockchain for real estate and so on. From my understanding, most of them are private blockchains (correct me if I'm wrong), but when I tried to find some info on how they work, I didn't get much So, I have some questions:
1. How do they work? How blocks are organized? Are there any miners? Are they at least slightly more decentralized than traditional solutions?
2. Why blockchain? Does it solve any problems? Is this more efficient than traditional solutions? Are there any benefits for customers?
They are probably either PoS coins or using Ethereum blockchain. I doubt there are any miners. Otherwise the blocks are organized in a linked list, that is what blockchain is, a chain of blocks. But for the decentralization part, I guess it depends, but there will be no benefit if they are not. Blockchain really just solves the problem of trust, it works for the decentralized systems. It is a way of keeping some data in a decentralized and secure manner, in some cases where there are many institutions that need to have a type of ledger or in other words, just some data that they all agree on, then it helps.