The Israeli stopper, 29, produced two superb saves to keep Hibs level, first to tip away a half-volley from Olivier Ntcham before the break and then when he produced a crucial touch to divert a free-kick from Odsonne Edouard that was dipping towards the far corner of the net.
He equalled these interventions with his contributions in injury time, one to deny Edouard and another to thwart Jozo Simunovic.
Marciano recently returned to the starting XI after recovering from surgery on a finger. He admits the presence of no. 2 Adam Bogdan, who is on loan from Liverpool, has kept him on his toes.
“It is always good to have competition,” said Marciano. “I was injured in the summer. Adam came and he did very well. I was happy I got my chance back and I am happy that I am playing well and hopefully keep doing well for the team and myself.