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.
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The problem
Find a collision in the specified 220-round MiMCSponge / MiMC-Feistel construction over the BN254 scalar field.
Open since2020challenge launch
Last checked2026.07.27Catalog verification
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Reward offers
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