aeternity

TON is a fully decentralized layer-1 blockchain designed by Telegram to onboard billions of users. It boasts ultra-fast transactions, tiny fees, easy-to-use apps, and is environmentally friendly. TON is scalable and shareable. Its flexible architecture lets it grow and grow, with no loss of performance. It's used for transaction fees, securing the blockchain through staking, deciding how the network develops, and settling payments. TON has plenty of unique features that differentiate it from other layer-1 blockchains. The actor model is a mathematical model of concurrent computation and is at the heart of TON smart contracts. In it, each smart contract can receive one message, change its own state or send one or several messages per unit time. As a result, the entire blockchain, as well as a given contract, can scale up to host an unlimited amount of users and transactions. The TON Virtual Machine (TVM) is a deterministic, fully-featured stack-based virtual machine.

A breakthrough concurrent computational system that unshackles the blockchain. RChain is pioneering transparent and secure transactions with an ultra-fast, global-scale technology platform. Cooperative governance and a sustainable economic model make RChain a public utility that can be applied to climate change, data security, digital identity, and many other challenges we are collectively facing. RChain realizes superior scalability and speed by doing intelligent concurrency throughout the network and right-sized validation of every transaction. Transactions now happen with low execution costs and greater efficiency. RChain's decentralized architecture design does not compromise security to achieve scale. Rholang, RChain's contract programming language, lets developers write for concurrency and formally verify all processes. RChain is built in a radically open-source fashion. The contributions of cooperative members enrich and extend the RChain ecosystem.