Overview
- The Ethereum Foundation launched a public post‑quantum hub Tuesday that unifies the roadmap, open‑source code, specifications and a plain‑English FAQ.
- More than 10 client teams are now running weekly “PQ Interop” devnets to trial the designs across different Ethereum clients.
- The plan replaces today’s BLS validator signatures with hash‑based schemes such as leanXMSS and uses zero‑knowledge aggregation to tame size growth, since BLS can compress 10,000 signatures to about 96 bytes while a single hash‑based signature is roughly 3,000 bytes.
- On the execution layer, users will migrate voluntarily through account‑abstraction wallets, aided by a vector‑math precompile that verifies quantum‑safe signatures without forcing a one‑day network switch.
- Targets call for Layer‑1 upgrades around 2029 within a multi‑fork “strawmap” built on eight years of research, about $25 million in funding and work by roughly 1,500 contributors, with the team aiming to set a standard other proof‑of‑stake chains can adopt.