Blockchain is a key technology – a computer scientist explains why the post-crypto-crash future is bright

People hear a lot about blockchain technology in relation to cryptocurrencies like bitcoin, which rely on blockchain systems to keep records of financial transactions between people and businesses. But a crash in public trust in cryptocurrencies like TerraUSD – and therefore a massive drop in their market value – doesn’t mean their underlying technology is also worthless.

In fact, there are plenty of other uses for this type of system, which does not rely on centralized storage and where many people can participate securely, even if they don’t all know each other.

As a computer scientist exploring new technologies for future smart communication network technologies, I, along with many engineers and developers, have shown that blockchain technology is a promising solution to many challenging problems in trust and security of next-generation network-based applications. I see several ways blockchains are proving themselves useful that aren’t tied to cryptocurrency.

Supply chains

Modern global supply chains require a huge amount of information for the massive number of products being shipped around the world. They suffer from limits on data storage capacity, inefficient paper processes, disjointed data systems and incompatible data formats. These traditional centralized data storage methods cannot efficiently trace the origin of problems, like where a poor-quality product came from.

Storing information on a blockchain improves integrity, accountability and traceability. For example, IBM’s Food Trust uses a blockchain system to track food items from the field to retailers. The participants in the food supply chain record transactions in the shared blockchain, which simplifies keeping track.

Health care

Data ownership and privacy are top concerns in the health care industry. Current centralized systems cannot meet all the diverse needs of patients, health service providers, insurance companies and governmental agencies. Blockchain technology enables a decentralized system for access control of medical records where all stakeholders’ interests are protected.

Blockchain systems not only allow health care service providers to securely share patients’ medical records but also enable patients to track who has accessed their records and determine who is authorized to do so.

A cargo ship is alongside a pier with ranks of hundreds of shipping containers stacked nearby.

Blockchain systems are already helping companies track items through complex global supply chains.
AP Photo/Michael Probst

Banking and finance

Banking and finance benefit from integrating blockchain networks into their business operations. Instead of trying to develop cryptocurrencies with new or different capabilities, the financial sector has recognized that blockchain systems are a reliable way to store information about traditional currencies like the dollar, euro and yen, as well as financial products.

Blockchains provide consumers with the convenience of being able to monitor their transactions as they are…

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