There are 2 repositories under clearmatics-research topic.
Integration of Zerocash on Ethereum: https://arxiv.org/abs/1904.00905
General purpose aggregator using recursive composition of SNARKs: https://arxiv.org/abs/2008.05958
C++ library for Finite Fields and Elliptic Curves (forked from scipr-lab/libff)
Java library for distributed zero knowledge proof systems (forked from scipr-lab/dizk)
Zeth protocol specifications
C++ library for zkSNARKs (forked from scipr-lab/libsnark)
Node.js package wrapping libff
Research on privacy preserving compliance protocols
Research on the simulation Extractability of PLONK
Research on polynomial commitment simulation extractability
Open source simulations and models by Clearmatics Research
Community Zeth Protocol Improvement Proposals