https://axelar.network/

https://axelar.network/wp-content/uploads/2021/07/axelar_whitepaper.pdf

Consensus in the presence of partial synchrony. https://groups.csail.mit.edu/tds/papers/Lynch/jacm88.pdf

Flexible round-optimized schnorr threshold signatures. https://eprint.iacr.org/2020/852