Skip to Content
Blockchain

Meet the blockchain for building better widgets, cheaper and faster

A new prototype gets at how—and why—manufacturers and product designers might benefit from a blockchain.

As with nearly every industry supposedly ripe for disruption by blockchains, the vision of a manufacturing sector making use of the technology is a heady one: machines whose performance metrics are never in doubt, that are networked together and perhaps even share or trade new design specs among themselves. These swarms could be scattered in factories across the globe, churning out new and ever-improving products with nary a human in sight.

At a research lab at North Carolina State University, that future has just taken a small step toward becoming reality.

This piece first appeared in our twice-weekly newsletter, Chain Letter, which covers the world of blockchain and cryptocurrencies. Sign up hereit’s free!

Using a permissioned version of Ethereum, researchers there hooked up a computer numerical control (CNC) machine, a versatile piece of equipment that spits out parts on factory floors everywhere, to a small blockchain network. Then they showed that smart contracts could be used to program the machine to automatically record data about itself and share it to the blockchain—in this case, verification that the machine had been operating continuously for eight hours.

It’s a simple prototype, but Binil Starly, who led the study, says it has helped answer a big question: how do you actually get a machine to record data to a shared ledger?

As for why you’d want to do that in the first place, imagine that a small biotech startup in Boston has a novel design for a bioelectronic device it needs made, and the best value can be found with a boutique manufacturer in rural North Carolina. Makers of medical devices must satisfy strict regulatory requirements, often including extensive and specific certifications, says Starly. Typically, the device’s designer has to go through a costly process of verifying that the manufacturer it’s using meets every requirement, while the manufacturer is subject to a similarly laborious set of compliance checks. And if the product design is changed later on, everyone gets to do it all over again. This has been called manufacturing’s “trust tax.”

A shared cryptographic ledger—that is, a blockchain—could lower the trust tax, making crucial information like machine certifications more accessible and transparent, says Starly. That would also make it much easier for the Boston startup to discover its ideal manufacturer. Smart contracts could come into play, too, for things like advertising a given machine’s capabilities to the rest of the network, or limiting the conditions under which it will take a job. Machines could even use the ledger to help coordinate activities with other machines in different facilities.

Starly acknowledges that there is a lot more work to be done—like, for example, making sure there’s no way a machine’s data can be spoofed. Then there���s the question of how to incentivize participation in a decentralized network (Bitcoin and Ethereum solve this by offering a currency reward for maintaining the ledger). That will require determining exactly which data businesses are actually willing to share, and with whom—a challenge that might be more complicated than any technical ones.

Deep Dive

Blockchain

crypto winter concept
crypto winter concept

Crypto is weathering a bitter storm. Some still hold on for dear life.

When a cryptocurrency’s value is theoretical, what happens if people quit believing?

Neha Nerula
Neha Nerula

The MIT researcher who helps senators understand digital currencies

The MIT Digital Currency Initiative director serves as a crucial link between cryptocurrency developers and central banks around the world.

"Olive Garden" NFTs concept
"Olive Garden" NFTs concept

I tried to buy an Olive Garden NFT. All I got was heartburn.

Our newest issue spells out what you need to know about the dizzying world of digital money.

mazacoin illustration
mazacoin illustration

He created an indigenous digital currency. The dream is still alive.

For the creator of MazaCoin, the dream of a sovereign monetary system for indigenous people is still alive, but it looks different than it did 10 years ago.

Stay connected

Illustration by Rose WongIllustration by Rose Wong

Get the latest updates from
MIT Technology Review

Discover special offers, top stories, upcoming events, and more.

Thank you for submitting your email!

Explore more newsletters

It looks like something went wrong.

We’re having trouble saving your preferences. Try refreshing this page and updating them one more time. If you continue to get this message, reach out to us at customer-service@technologyreview.com with a list of newsletters you’d like to receive.