Technology & Innovation

Blockchain revolution

September 12, 2014

Global

September 12, 2014

Global

Beyond Bitcoin: the revolutionary potential of the “blockchain”

The technological mechanism that underpins cryptocurrencies such as Bitcoin could theoretically be used to anonymously verify any kind of transaction – and its impact could be enormous.

Bitcoin is the first and best known example of a cryptocurrency, a system that uses the principles of cryptography to allow value to be exchanged without a middleman such as a government or bank.

It reached mainstream attention in 2013 when a speculative commodity bubble saw the value of Bitcoin skyrocket – and promptly collapse. Readers would be forgiven, then, for thinking cryptocurrencies are a techy flash in the pan.

But there is a lot more to cryptocurrencies than Bitcoin. Indeed, there is a lot more to the underlying technology than the exchange of monetary value.

Indeed, such is the potential of the technology that some are predicted that it could be as disruptive as the worldwide web itself. It pays, therefore, to have a rudimentary understanding of how it works.

A key component of the Bitcoin technology is a distributed ledger, a record of all transactions that is stored across every computer running the Bitcoin software. A record of every Bitcoin transaction is shared across the network, so once you’ve spent an individual Bitcoin word spreads around the network and you cannot spend it again.

It’s the irreversibility and the public nature of the transactions that makes cryptographic ledgers, also known as “blockchains”, an intriguing tool. The fact that the transaction itself is verified, not the identity of the people making it, is what allows people to use Bitcoin pseudonymously (although not 100% anonymously).

There’s plenty of scope for using Bitcoin-like blockchains to handle other financial transactions beyond simple transactions. For example, the same mechanism could be used to verify completion of some task, replacing the need for a physical signature to unlock an escrow account.

Systems built on the same principles could replace expensive middlemen in financial markets. For example, a cryptographic distributed ledger could theoretically form the backbone of a next generation commodity futures market, handling both ends of a trade without fees or delays.

And beyond financial transactions, cryptographic ledgers could be used to exchange the information needed to validate a physical transaction – perhaps as a way of adding proof of authenticity to art, or registration documents for machinery, or even as a way to prevent copying of digital content.

It’s even been suggested that blockchain ledgers could be a replacement for the domain name system (DNS) that underpins the Internet - although at the risk of losing your domain names for ever if you lost your keys.

One thing is clear: even if cryptocurrencies turn out to be a fad, the underlying technology points to a set of tools that could change the face of the digital landscape. 

How could the blockchain be used in your industry? Join the discussion over on the Future Realities group on LinkedIn, sponsored by Dassault Systemes. 

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