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.
Just got the hang of Spotify? Prepare to have your listening habits disrupted again by blockchain-based music streaming services. Instead of a service such as Apple Music or Spotify taking a cut, a blockchain system called Voise is enabling artists to set a price of which they receive 100 percent when a user streams their music.
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.
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