{"type":"rich","version":"1.0","title":"David A. Harding wrote","author_name":"David A. Harding (npub1sy…46ksu)","author_url":"https://yabu.me/npub1syluunzwwmc70d85d9alzqc2jrc6pdur7xrax2vqpfxas6tljavsa46ksu","provider_name":"njump","provider_url":"https://yabu.me","html":"You detect it with statistical analysis.  If Mallory is excessively unlucky, e.g. she's submitted 3x as many shares as necessary to find a block but none of her shares were blocks, you ban her."}