Answer:
- Because blockchain is ultimately a ledger which anyone can have and verify, you can track any data that was put in the ledger to it’s source or “date of birth”. The other very important reason is that each blockchain when settled, is unchangeable ( or have very very low chance to be tempered with, depending on the blockchain).
- Normal database is highly centralized, which means you can change any data at any time, and no one will know, since they don’t have copy of your database. It creates a situation when you are becoming a gate keeper to information that people want to access, which means they have to trust your word. They cannot verify for themselves that you haven’t changed anything in database.
- Many business require certification of origin which have to solve problem of trust and validity. However, humans are most of the time point of failure. We are susceptible to corruption and stupid mistakes which commonly refereed to as “human factor”. Digital provenance of the blockchain solves that problem, because you can have exact database verified by bunch of other people and verify yourself the origin of the data. This is good for food industry, patents, any digital content, art, car industry, etc.