2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/138434We prove that the chordal SLE$_κ$ trace is reversible for $κ\in(0,4]$.23 pages; the 2nd version has longer introduction; in the 3rd version, some typos are corrected thanks to the referee's careful review. The 3rd version is accepted by the Annals of ProbabilityProbability60Revesibility of chordal SLEtext