Supernets have an advanced technical architecture powered by Polygon Edge, trustless traffic via Merkle treesEthereum Virtual Machine (EVM) compatibility and custom token support.
The supernet architecture is closely tied to the Polygon Edge architecture. The six modules in the Polygon Edge architecture that are relevant to supergrids include the following:
- TX Pool: Acting as a repository for pending transactions, this module is key to Polygon Edge’s event-driven architecture. Transactions can be easily added from multiple sources and seamlessly integrates with other platform modules.
- Blockchain: This is a state database and contains information about accounts, smart contract code, the state of the world, and more.
- JSON-RPC: Supernet’s API layer conforms to Ethereum client standards, allowing tools like MetaMask, Web3.js, Ethers.js, Remix, and Hardhat to work seamlessly on its network.
- Consensus: Supernet uses proof of authority and proof-of-stake consensus algorithms.
- Libp2p: This is an updated peer-to-peer supernet stack that facilitates block synchronization, consensus reports, transaction pool slander, and SAM pool slander.
- gRPC: Due to its powerful communication protocol, supernet privileged operator commands can only be executed locally on validator nodes. Verified operators can perform online backups, retrieve information from validators’ systems, and query and delete data stored in the transaction pool.
Supernets also operate without trust, meaning that each node verifies each transaction independently by executing a smart contract. For the blockchain’s ledger to function properly, all nodes must maintain an identical copy of it consisting of the Merkle tree of blocks and extensive lists of transactions.
The effort of malicious actors trying to change the ledger will be quickly identified due to discrepancies in hash values from different states that are incompatible with those in the Merkle tree.
Supernets also have built-in EVM support, which means developers can write and deploy smart contracts using EVM bytecode that is compiled from high-level languages like Solidity.
Developers with experience building Ethereum can easily convert their Solidity contracts to supernets without any modifications thanks to the set of tools available, including Truffle, MetaMask, Remix and block explorers. This allows for a seamless transition from one platform to another.
Finally, supernets allow developers to create their own tokens consistent with universally accepted token interfaces such as ERC-20. This is in line with Polygon’s goal of promoting interoperability through supernets.
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