2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/60427Using a mixture of linear algebra and statics, we derive what can be viewed as a slight generalization of the Coppersmith-Tetali-Winkler Identity $H(i,j)+H(j,k)+H(k,i)=H(j,i)+H(k,j)+H(i,k)$ for hitting times of a random walk.3 pages + 1 line, Preliminary VersionCombinatoricstext