Reporters have swarmed the Temple City home of Satoshi Nakamoto after a Newsweek story claimed he was the creator of the controversial currency.
Los Angeles County sheriff's officials said they have been sending a car to his home every few hours to make sure there are no problems.
No incidents have been reported to authorities. The Newsweek story suggested Nakamoto called police when the report came to his home.
The Times' Joe Bel Bruno and Andrea Chang reported that a group of reporters pursued Nakamoto as he and an Associated Press reporter drove to the news service's offices in downtown Los Angeles. In a brief exchange with Chang, Nakamoto denied being the creator of Bitcoin.
Several reporters were staking out the office, but the Los Angeles Police Department said it has not sent any units there.