[damip]

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/

[tim333]

There's also Credits which claims to be the fastest chain at 0.1 second transaction times and to be capable of over 1 million transactions a sec. Though it you run it that fast you use a lot of disk space. https://credits.com/