Ms. Antseliovich, who has not been directly implicated in the investigations, said she was shocked by the revelations.

Vitaly Smirnov, 81, a top sports official whose career dates to the Soviet era and who was appointed this year by Mr. Putin to reform the nation’s antidoping system, said he did not want “to speak for the people responsible.” Mr. Smirnov said he had not met most of the individuals implicated in a report by Mr. McLaren — emphasizing that they had been dismissed as a result — nor did he know where they were.

“From my point of view, as a former minister of sport, president of Olympic committee — we made a lot of mistakes,” he said, echoing Mr. Putin’s broad denials of a state-sponsored system and noting that he would defer to the global governing bodies of each sport to rule on the evidence.

Mr. McLaren said Tuesday that he was pleased Russian officials were no longer disputing his findings, suggesting they may have been motivated to stop further investigations into the scope of cheating. “It’s damage control,” Mr. McLaren said. “There are a number of different labels you can put on the facts, and they take a different view of government, but it’s a bit of a vocabulary game.”

The 2014 Olympics in Sochi were a pet project for Mr. Putin, who was closely involved in politicking for and preparing for them. Proud references to the Sochi Games overwhelm the Russian Olympic Committee’s offices along the Moscow River, including a nesting doll standing roughly six feet tall in the building’s lobby signed by Russian Olympians.

Many of the athletes whose pictures decorate the Olympic committee’s offices have been implicated in this year’s doping scandal, with scores formally disciplined and more than 650 others now accused. One photo shows Russians kissing medals and another shows Paralympians in wheelchairs holding victory bouquets above their heads.