MANILA, Philippines?The Parish Pastoral Council for Responsible Voting (PPCRV), the accredited citizen's arm of the Commission on Elections, announced Tuesday that it will conduct its own parallel tally of votes on election day on May 10.

PPCRV's Ana de Villa-Singson said PPCRV will get the fourth copy of the election returns to help them come up with an unofficial tally of votes a day after election day.

The tally will be apart from the results that will be obtained from the Commission on Elections from the PCOS (precinct count optical scan) machines.

The PPCRV, then, will obtain two sets of results, first from the Comelec and the other from the election returns.

The fourth copy of ERs, considered as "pristine copy," is the data that the PCOS machines will print out right after the counting of votes on May prior to transmission.

De Villa-Singson said that on May 11, ERs nationwide will be encoded and tallied at the PPCRV's national command center at United Nations Avenue in Manila.

As early as 7 a.m. on May 11, the PPCRV will be coming up with unofficial, partial tallies of the election returns for the positions of president, vice president, and senators.

Updates every 30 minutes will be given, as the ERs from all over the country are encoded and tallied, de Villa-Singson said.

She added that the unofficial tally of the ERs is expected to be finished within four days.

Meanwhile, results of the partial unofficial tally of the automated count will come out late Monday.

PPCRV National Chairperson Henrietta de Villa said that PPCRV will be comparing the results of the parallel manual encoding with the results of the automated count.

"It should not be different," she told reporters.

Asked how their count would be different from other organizations?, de Villa-Singson said, "We know our data source is nationwide and has the added integrity of being data churned out before transmission...the data is also secured, encoded, and relayed to the public in a non-partisan voice."

Also on Tuesday, the PPCRV unveiled its national command center in Manila, where the tally of votes will be held.

The spacious command center will house 100 computers and will serve as the main drop-off point for the fourth copies of the election returns, which the PPCRV will use to obtain an unofficial tally of the votes for the positions of president, vice president, and senators.

Volunteers will be working on a three-shift basis, 24 hours a day. With several partner organizations, the PPCRV will also be collecting data for a mapping of incidences and timelines throughout precincts nationwide, de Villa-Singson said.

The PPCRV also signed a memorandum of agreement with the Kapisanan ng mga Brodkasters ng Pilipinas for the parallel tally of the results.

The PPCRV has sought the help of the 700 radio and TV networks as well as over 200 journalists who are members of the KBP for the coming elections, de Villa said.