Big banks are racing furiously under the assumption that blockchain technology is going to undermine the need for their role in ensuring the integrity of financial transactions. However, distributed databases also threaten to disrupt the role of derivative exchanges and perhaps grain origination as well. Blockchain Disruption of Commodities Big banks are racing furiously under the assumption that blockchain technology is going to undermine the need for their third-party role in ensuring the integrity of financial transactions. However, distributed databases (no single party can manipulate it) also threaten to disrupt the traditional role of derivative exchanges and perhaps grain origination as well. Vitalik Buterin explains that blockchai...