MATICGBP
Matic Network / Pound sterling
crypto Coinbase

Polygon is a platform design to support infrastructure development and help Ethereum scale. Its core component is a modular, flexible framework (Polygon SDK) that allows developers to build and connect Layer-2 infrastructures like Plasma, Optimistic Rollups, zkRollups, and Validium and standalone sidechains like the project's flagship product, Matic POS (Proof-of-Stake). Polygon rebranded from Matic Network in February 2021 and pivoted towards supporting multiple Layer-2 infrastructure. It will continue to support the Matic POS sidechain and Plasma-based payment system, which currently hosts over 90 applications. Polygon's hybrid POS/Plasma commit chains has three layers: Staking and Plasma smart contracts on Ethereum: Matic Network maintains a set of smart contracts on Ethereum, which manages staking functions and rewards for Matic's Proof-of-Stake layer. These contracts are also responsible for delegation management (including validator shares) and Plasma contracts for MoreVP (including checkpoints/snapshots of sidechain state). Heimdall (Proof of Stake layer): The Heimdall layer handles the aggregation of blocks produced by Bor into a Merkle tree. It publishes the Merkle root to the root chain periodically. Bor (Block producer layer): Bor is Matic's block producer layer - the entity responsible for aggregating transactions into blocks. It is an implementation of Geth with custom changes done to the consensus algorithm. Polygon SDK Polygon pivoted in February 2021 towards building a solution to connect the different versions of Ethereum scaling solutions. At the core of this Layer-2 connective tissue is the Polygon SDK (software development kit), which will serve as a modular, flexible framework for launching a new chain based on any Ethereuem scaling technology. Developers will have the option to build or connect true Layer-2 platforms like Plasma, Optimistic Rollups, zkRollups, and Validium enabled chains and standalone sidechains like Polygon's flagship product, Matic POS (Proof-of-Stake). The Polygon SDK is still in development.