Aptos is a layer-1 blockchain focusing on scalability, safety, reliability, and upgradeability, aiming to revitalize the layer-1 space with innovative consensus mechanisms, smart contract design, and other features. Its foundation includes native integration of the Move programming language for secure and efficient transaction execution, flexible key management, modular transaction processing, atomicity without upfront data knowledge, and a modular architecture that supports frequent upgrades and scaling solutions like internal sharding of validators