No - or at least, not yet. Although many media sources are correctly reporting that California has certified its results, this is being confused with the final result certification. If we look at the General Election Calendar posted on the California Secretary of State's website, we can see where the confusion is arising:
115. STATEMENT OF RESULTS TO SECRETARY OF STATE
By this date, the county elections official shall send to the Secretary
of State, in an electronic format, one complete copy
of the general election returns for all candidates for United States
Representative in Congress, State Senator, and Member of the State
Assembly, and for all statewide ballot measures.
116. CERTIFICATES OF ELECTION — PRESIDENTIAL ELECTORS
No later than this date, the Secretary of State shall analyze the votes given
for Presidential Electors and certify to the Governor the names of the
proper number of persons having the highest number of votes. The
Secretary of State shall issue and transmit to each Presidential
Elector a certificate of election.
117. STATEMENT OF THE VOTE
Last day for the Secretary of State to prepare, certify, declare, and file a statement of the vote from the
compiled election returns and post to the Secretary of State's
Note that these dates are deadlines, not exact dates. For example, by looking at the county reporting status page we can see that this step (#115) was completed on the morning of December 3rd, rather than December 4th.
The certification reported by the media was, in fact, the certification of the result by the Secretary of State to the Governor (#116) and not the final certification of the statement of the vote (#117). The Secretary of State has until December 11th to publish the election returns online.