Pragmatic signature aggregation with BLS - Sharding - Ethereum Research
TLDR: We suggest using BLS signature aggregation as a pragmatic medium-term solution to the signature verification bottleneck of sharding and Casper, later replacing it with STARK-based aggregation for quantum security. Background Signature verification is the major bottleneck for both sharding and Casper. Assuming 32 ETH deposits (relatively small deposits to encourage participation and decentralisation) and ~10,000,000 ETH at stake we get ~312,500 validators. Casper finality requires 2/3 of...| Ethereum Research
