The Blink network achieved a transaction throughput of 20,000 T/s in their global testnet, with sub-second confirmation times. The network is built on a consensus protocol with proof-of-stake and has a sort of hybrid structure between blockchain and directed acyclic graphs (DAG), similar to Nano. Each "block" is actually something called a round, and all transactions processed during the same round form a DAG. These rounds are then chained together sequentially.
Blink has not updated their social media channels or website since mid-2018, and it is not clear whether or not the project is still in development or if it has been abandoned.
The team and philosophy behind Blink - Blinknet - Medium