Ethereum 2.0 didn’t switch to BLS for novelty. It was a necessity.
ECDSA and Ed25519 got us far. But Ethereum 2.0 and other high-throughput chains demand more: scalable aggregation, robust threshold signing, and efficient multi-signature verification.
BLS delivers. Built on pairing-friendly curves like BLS12-381, it enables true signature aggregation, simpler threshold cryptography, and exact verification that scales with thousands of signers, without hacks or heuristics.