BRASILIA, Oct. 6 (Xinhua) -- The Superior Electoral Court (TSE) held a ceremony on Saturday to verify digital signatures on the electronic ballot boxes filing system, the final technical procedure prior to the general elections.

The verification ensures systems installed at polling stations are the same ones that had been digitally signed by the Federal Public Ministry, the Federal Police and the TSE when the ballot boxes were sealed on Sept. 6.

"We conduct this ceremony to certify the authenticity and originality of the systems distributed to the Regional Electoral Courts," said TSE president Rosa Weber, claiming it is fundamental for the transparency and reliability of the electoral process.

"This guarantees the vote is secret and the election results are secure," she added.

As she greeted the election workers, Weber said they had been diligently working to make sure every citizen can vote freely and calmly.

More than 147 million Brazilians are expected to cast votes in Sunday's elections.