A blockchain allows the authentication of transactions without them needing to be administered or guaranteed by a central authority. Ballot boxes and current online voting platforms are vulnerable to manipulation; now a startup called Follow My Vote is developing a blockchain-based system to ensure security, transparency and mathematically accurate election results.

Applied to power generation, blockchain enables homeowners to sell back energy to the grid without going via an energy provider or manage their own microgrids that are independent from the established system. Lo3Energy runs a project in Brooklyn, New York, where homeowners can buy and sell energy they have generated with rooftop solar panels.

The blockchain allows them to set their own price – and to do so without a price-setting, commission-taking intermediary. A patient’s medical records are often scattered between GPs, clinics and labs.

A blockchain-based health record could be read and updated from multiple locations or services and would contain a note of who made each addition to the record. The patient can opt to take charge of the data and choose whom to share it with.

At MIT, researchers are developing such a system, called MedRec, that will integrate with current healthcare computer set-ups. In 2012, the then secretary-general of the UN, Ban Ki-moon, estimated that 30% of development aid was lost to corruption. The UN has a number of blockchain-based projects looking to solve issues in delivering aid. Read more from theguardian.com…

thumbnail courtesy of theguardian.com