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    The bench · integrity

    The records have to mean something.

    Codeseum is a public ladder. A public ladder only works if every name on it is honest. Tape, replay, and signed peer reviews keep the result attached to real work.

    Tape required·Replay verification·Signed peer reviews

    Tape required

    Every record claim is on tape. No tape, no claim — and no exceptions, even for the leader. The screen, the camera, the keystrokes, all on the record. Tapes go public immediately; the 48h seat-lock protects the run, not the footage.

    Replay verification

    Every submitted solution is re-run deterministically against the trial's hidden test set. A run that doesn't reproduce its own MARK on replay is voided automatically before it can touch the ladder.

    Peer review

    QJs re-review flagged tapes, record claims, and high-impact disputes. Reviews are signed, visible, and feed ROOM — separate from automated scoring.

    What's allowed

    Any approved engine. Multiple monitors. Notes. Music. Coffee. Friends in the room.

    What's required

    Continuous tape from preflight to verdict. Visible face cam. Visible engine choice.

    What's forbidden

    Pre-written solutions, hidden assistants, tape edits, swapping engines mid-run, post-hoc score patching.

    What we void

    Any run that fails replay verification. Any tape with a cut. Any handle flagged by 2+ top-quartile QJs.

    See something off?

    Flag a tape and a judge can review it. Confirmed flags void the run and roll back any rating change tied to it.

    Flag a run