Einz’s family is amassing artifacts about her life on hard drives. If she’s revived, they say, she can turn to this cache of video clips, family photos, hospital records and personal letters to understand her origins. The family adds new material each week. “We’ll be including a PDF of this article in her files,” Dararat says.

Roughly 300 people are cryonically preserved at various facilities; more than 1,000 have made post-death cryonics arrangements. But Einz is the only one who was too young to offer verbal consent. Einz’s family says her good spirits throughout dozens of painful operations indicated a fierce will to live. She endured 12 surgeries and 40 chemotherapy and radiotherapy sessions, yet often emerged smiling.

They were particularly amazed when she awoke — defying doctor’s predictions — following surgery to remove a brain tumor.

“We reached the end of our human limitations to help her,” Sahatorn says. “We felt that, as her mother and father, we had to give her another chance. If we didn’t, we’d feel conflicted.”