Offer 01$20,000Ethereum Foundation and Protocol Labs
DocumentedSubmit a nonanonymous collision by email under the official rules. Payment may be in USD, ETH or DAI; no deadline is stated and the current bounty index shows no claimed marker.
01
The problem
Find a collision in the specified 220-round MiMCSponge / MiMC-Feistel construction over the BLS12-381 scalar field.
Open since2020challenge launch
Last checked2026.07.27Catalog verification
02
Reward offers
03