A woman thought to be one of Russian President Vladimir Putin's mysterious daughters — whom he has never publicly acknowledged by name — made her debut on Russian state TV on Thursday.

Katerina Tikhonova, commonly believed to be the younger of Putin's two daughters from his first marriage, was seen on the state TV channel Rossiya 1 on Thursday talking about advancements in technology aimed at controlling electrical impulses in the brain, BBC Monitoring reported.

Tikhonova on Rossiya 1 on Thursday.

On the evening news show, the 33-year-old was introduced with the title "deputy director of the institute for mathematical research of complex systems at Moscow's State University," the report said.

It seems to be her first time appearing on state television, according to the BBC.

In addition to holding a position at Moscow University, Tikhonova was previously reported to have been an acrobat at the World Rock'n'Roll Federation, a dance competition.

Tikhonova with Ivan Klimov during the World Cup Rock'n'Roll Acrobatic Competition in Krakow, Poland.

Her identity has been a mystery for some time. The federation's vice president for legal affairs, Manfred Mohab, once appeared to confirm she was Putin's daughter to Reuters.

Reports of Putin's daughters don't crop up very regularly. Most recently, there were rumors Tikhonova had gotten a divorce and speculation that the elder daughter, Maria Putin, lived on a suburban golf course in Surrey, UK.

Putin was asked in 2015 whether Tikhonova was one of his daughters but did not answer the question, the BBC said. He has, however, indirectly referred to both daughters and to a grandchild.

Putin publicly divorced Katarina Tikhonova's mother in 2013, after 29 years of marriage, and some reports say he had another daughter with his girlfriend in 2015, which the government has denied.