With New Zealand reeling after a self-described fascist murdered at least 49 worshippers at a Christchurch mosque, gun control is back on top of the news cycle worldwide. And blockchain developers think they can help make it more efficient and accurate.

Christchurch, Canterbury, New Zealand, March 17 2019: Flowers to remember the victims of the March 15 2019 Christchurch Mosque Shootings (via Shutterstock).