2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/127737We present an alternate description of the Ozsvath-Szabo contact class in Heegaard Floer homology. Using our contact class, we prove that if a contact structure (M,ξ) has an adapted open book decomposition whose page S is a once-punctured torus, then the monodromy is right-veering if and only if the contact structure is tight.17 pages, figures are in color. Lemma addedGeometric TopologyPrimary 57M50; Secondary 53C15text