Perseu Software

e-Voting Software

- Electronic elections

- Internet and smartphones

- Key verification

- Closed Intranet environment

- Printed Vote

- Voting Receipt

- Instant results

- Blockchain database architecture

Cédula Dupla



The system is developed for computers, tablets and smartphones, for when there is no need of presence at polling stations, allowing voting where people are. It provides election to public offices at any level and in institutions that need to elect its managers, shareholder meetings, voting in companies, buildings, etc.

It offers five kinds of ballots:

1) Referendums and plebiscites: yes or no, with abstention.

2) Single choice of candidates, with abstention.

3) Multiple choice of candidates, with abstention.

4) Single choice of political parties, with abstention.

5) Emulator of the Brazilian electronic ballot box.

Candidates are presented with their names, numbers, photos, parties and logos of their associations.

The candidatures follow the numerical pattern: for each office is assigned a certain number of digits. For example: A candidate for president (or syndic, for example) receives a two-digit identification number. Senator: three digits, etc.

Parties will always be represented by two digits.

For voters make sure that their answers were well computed, as soon as each ballot is confirmed, a unique and unidentifiable verification key will be created, which allows each voter to check their votes on the Internet and smartphones to check whether it has been correctly considered.

Try some prototypes:

- Election via Internet: Presentation

- Election via Internet: Login

- App for smartphones at Google Play

- Demo video

- Election of Trade Union

- Kinds of Questions


Designed for indoors, it is the ideal system for elections in clubs, councils, associations, unions, buildings, schools, universities and other institutions that require the presence of the voter in the polling station.

To further compare and ensure the correction of the instant verification of the results, receipts of votes may be printed, in order to be deposited in traditional sealed ballot boxes, for any request of recounting.

Small thermal printers, similar to those used in supermarkets, can be coupled in each station of the particular network of the polling place, consisting of cabin, chair, computer, mouse and keyboard.

The confrontation with 100% of accuracy between the electronic counting and the printed receipts brings security and transparency that all election requires, taking advantage of the speed of the instant calculation, which provides the result as soon as the electoral process finishes.

Try some prototypes:

- Election of officers and renewal of Council

- Election of president club



The calculation of the results is instantaneous, updated at every vote.

The totals are displayed by ballot, ranked by frequency, with bars, percentages and quantities of votes that each option/candidate receives.

The votes directed only to the parties are added to the given to their candidates, generating an additional report grouped by party.

The list of those who voted will be produced, in alphabetical order, and also of those who did not vote.

The data of those who voted and their votes are stored in the database into separate tables, unrelated to each other and randomly, so that the authors will not be identified (nor by the voting time), preserving the confidentiality of all responses, but preventing electors of voting more than once.

See the results of the prototype:

- Updated results


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