Blockchain projects are crypto currency at the same time?
For example, when I develop a project using the blockchain infrastructure, I develop a new crypto currency?
as for whether there's a blockchain in real world use, the only truly widespread application is of course money such as bitcoin.
There are many good
potentially widespread applications for the blockchain.
The problem is that money is very easy to have because it only needs agreement between two parties who regard the token to have value, whereas with most other blockchain applications, it requires a large company to give their trust to a new technology (which never happens, making it a speculative asset in the end).
I'm sure that ETH and especially ETC will help to prompt more blockchain applications in the future and blockchain systems will have more widespread use.