What do you mean by Blockchain 4.0

what are the first versions
The first version is BTC itself.
What make us blockchain 4.0 is that we are one of the few blockchain projects which can connect real world business and blockchain together.
One of the most challenging problems for mew blockchain projects is the userbase for dApps.
For TOP Network, this problem is already solved because we already have 50 million reliable users on the communication apps we have developed.
Interesting, so many projects seem to claim to be the first one to connect real world business and blockchain. At least in some aspects. Anyways, don't mean to nag and wish you best of luck!