Puzzle / bounty contract risk feed: the annotated watchlist of puzzle/CTF/bounty contracts classified as locked_no_payout (funded but value can never leave — solving pays nothing), frontrun_bait (pays msg.sender on a calldata condition — broadcast the solution and you WILL be front-run; submit privately), owner_only_payout, claimable, indeterminate or unfunded. Each entry ships payout-path evidence, front-run verdict and ETH at stake. Filters: ?classification=&funded_only=1&limit=.

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