Laymans terms, Blockchain works like this. Think of a chain link. One link is attached to the next which is attached to the next, and so on and so forth. Now assume one link is data, your vote. The chain link (block), your data, has a unique Hash number that is its identification as well as information stored within that block (heavily encrypted). There is also a hash signature appended on to your hash from the block before yours and the one after… making up your unique hash number. Say your black hash is 52…. The block before yours is A2, and the one after yours would be 7B That makes your unique number A2 52 7B If someone would remove your data and place it else where the hash’s wont allign and the system will know there is an issue. Better yet, block chain is also decentralized, meaning it is not on one network or system… and they are always in constant communication with each other. So if someone hacks a server and deletes out data the rest of the systems/servers that have the data automatically recognize something is missing and will auto correct the corrupted/missing data… The only way you can actually successfully hack Blockchain is that you need to hack the majority of the servers simultaneously and delete more than 50% of the data. In doing this majority of the servers would hold the missing data and therefore the overall system would think that is the correct information. If you cannot attack more than 50% of the data simultaneously ,it will always revert back to the correct data. This is how Blockchain is almost un hackable