We released our research results earlier this week. A new super light client protocol, decentralized and eclipse resistant. Needing just 20kb to sync to Ethereum.
Here is the paper: https://eprint.iacr.org/2019/579
and the announcement: https://diode.io/burning-platform-pki/blockquick-super-light-blockchain-client-for-trustless-time-19144/
The first use case we’re addressing is to use decentralized PKI (DPKI) from those small IoT devices.