Here is also a lesser known open source project that demonstrates the use of proof-of-stake for energy efficiency, combined with a fixed-width directed acyclic

Here is also a lesser known open source project that demonstrates the use of proof-of-stake for energy efficiency, combined with a fixed-width directed acyclic grah with transaction sharding for parallelization. Furthermore, "final" and "stale" blocks are dynamically forgotten to increase storage efficiency. It achieves 10,000 tx/s on chain and transaction times below 1 minute. https://blockclique.io/ https://blockclique.io/