# Blast audit contest Cantina · Layer 2 with native yield · 30th January 2024 · #17 A public audit contest on Cantina (layer 2 with native yield), completed on 30th January 2024. 0xSimao placed #17. His findings from it are not published individually. ## What Blast is Blast is an Ethereum L2 with native yield: ETH and stablecoin balances rebase from staking and T-bill income at the chain level, so the bridge and the yield plumbing are part of the chain itself. ## Scope The L2 core: the yield-bearing bridge, rebasing ETH and USDB accounting, and the gas refund plumbing. ## The contest [View the contest page](https://cantina.xyz/competitions/c90131b4-5c7c-4ebc-a1f3-8002d219bfe0)