MATIC (migrated to POL)

Polygon is a family of Ethereum scaling networks whose token, POL, is designed so a single stake can secure many chains at once. Its strategic project is the AggLayer, an aggregation layer intended to make separate chains behave like a single network for users moving assets between them.

One stake, many chains

POL replaced a token that secured a single network with one designed for restaking across many. A validator can secure several Polygon chains simultaneously and earn from each, so new chains launch with an existing validator pool rather than recruiting their own. It is the same problem shared security solves elsewhere, addressed at the token layer.

The AggLayer targets fragmentation

Every scaling solution creates a new place where liquidity sits, and users end up bridging repeatedly between chains that all claim to be Ethereum. The AggLayer aggregates proofs so connected chains can share liquidity and users can move without a conventional bridge — an attempt to solve the problem the rollup era created.

Zero-knowledge proofs over fraud proofs

Polygon's newer chains use validity proofs that mathematically demonstrate a batch is correct, rather than assuming validity and allowing challenges. Withdrawals do not require a multi-day dispute window, because correctness is proven rather than presumed. Proof generation is computationally expensive, which is the corresponding cost.

A history of reinvention

The project has repeatedly changed architecture — a sidechain, then a proof-of-stake commit chain, then zero-knowledge rollups and now an aggregation layer. That adaptability has kept it relevant across several eras of scaling design. It also means holders have absorbed multiple technical and token migrations.

What POL is for

POL secures the network's chains through staking and pays validators from emissions and fees. Unlike ARB and OP it is a working staking asset rather than purely a governance token, which gives it demand tied to security rather than to voting.