Proof of Elapsed Time (PoET) is a consensus mechanism used to validate transactions and produce new blocks in a blockchain. It was designed to provide an efficient and secure way to reach agreement among network participants without the energy-intensive requirements of traditional proof-of-work systems.In PoET, nodes on the network are randomly assigned a time period during which they must wait before they can propose a new block. The first node to finish their waiting time can create the new block and add it to the chain. This waiting period is monitored and verified by a trusted execution environment, ensuring fairness and preventing manipulation.This method reduces resource consumption since there’s no need for extensive computational power. PoET is particularly advantageous for networks that require scalability and lower operational costs, making it suitable for private and permissioned blockchains where trust can be established through other means. Overall, PoET offers an innovative approach to achieving consensus while minimizing energy usage.