Cosmwasm

CosmWasm is a smart contract platform designed for the Cosmos ecosystem, built to address security issues its site says are present in Ethereum's Solidity programming language. It aims to prevent reentrancy attacks and avoids certain language features it says are often misused, while offering native support for cross-chain communication between Cosmos blockchains through IBC. The platform runs on a WebAssembly runtime and uses the Rust programming language, which the site says allows type-safe development and thorough testing at unit, integration and full-stack levels. CosmWasm is deployed across multiple connected chains, which the site says spreads transaction load to help keep the platform stable and costs down as usage grows, and it allows smart contracts to be composed together in a way the site compares to Ethereum.