Polygon is a scaling solution for public blockchains. Based on an adapted implementation of the Plasma framework (Plasma MoreVP) — with an account based implementation, Polygon supports all the existing Ethereum tooling along with faster and cheaper transactions.
See also Ethereum Research: Account based Plasma (MoreVP)
Validator and delegator roles
On the Polygon Network, you can be a validator or a delegator. See:
If your goal is to become a validator, it is essential that you understand the Polygon architecture.
See Polygon Architecture.
To have a granular understanding of the Polygon architecture, see core components:
To have a granular understanding of the core components, see the codebases: