There are many different types of decentralized systems in production today.
The primary goal of Bitcoin, the first and currently the largest blockchain network, is to track and resolve the ownership of the Bitcoin digital currency.
The goal of Ethereum is more general purpose: to construct a “world computer” to enable smart contracts and decentralized applications.
Filecoin is an attempt to construct a network for decentralized file hosting and storage.
In contrast, Zetanet attempts to realize a blockchain internet for decentralized computing, focus on enabling secure, private applications where the blockchain layer handles minimal state and logic because of Zetanets’ protocol layer for reusable codes and function standards.
Zetanet is the next phase of internet. Let's anticipate.
Based on your statement and structural comment,
Bitcoin is Blockchain 1.0
Ethereum is Blockchain 2.0
Filecoin(what is this?) is Blockchain 3.0
and lastly, Zetanet is Blockchain 5.0, Seems like something is missing.
I really did know behind the blockchain 5.0 logic, and their media are dead too.