Budapest Post

Cum Deo pro Patria et Libertate
Budapest, Europe and world news

Blockchain: What is it, and why does it matter?

Blockchain: What is it, and why does it matter?

You've almost certainly heard the term blockchain. But you probably have no idea what it is or how it works, let alone why it generates so much hype. That's OK. Most people don't.

That hasn't kept it from becoming a buzzword thrown around in almost every industry, from finance to shipping to fantasy football. A-list companies like Amazon (AMZN), Facebook (FB), IBM (IBM), and Walmart (WMT) believe blockchain technology can track shipments, store data more efficiently, among other things. They aren't alone in embracing the technology, which many people believe could revolutionize logistics, food safety, banking, and even voting.

Not bad for an esoteric technology developed by the enigmatic figure who created bitcoin.

Of course, none of that answers your question: What is blockchain?

A public digital ledger


A blockchain is essentially an immutable public digital ledger. Once someone enters a transaction, it cannot easily be changed. An analogy might help explain how it works.

Think back to when people used a checkbook register to keep track of purchases and payments. Now extrapolate that to include countless transactions by millions of people and imagine that copies of the register are held by thousands of computers. Each computer must verify a transaction before it can be noted in the register. Once verified, a transaction is written in permanent ink.

The register records transactions for a set period of time, which can be as little as 10 minutes. Once the register is filled, it is stapled shut, and labeled with a unique alphanumeric sequence that identifies it. A new register is then started and glued to the first. Eventually you wind up with a chain of registers.

That's essentially what a blockchain is. The fact that these registers are stored on many, many computers makes them essentially unchangeable and unhackable. To continue with the analogy, you'd have to work backward, ungluing every checkbook until you got to the one containing the transaction you want to change before making the revision. And you'd have to repeat this process for every copy of the register. You couldn't do it without it being noticed.

The biggest advantage to public blockchains is that the information can't really be changed once it's been logged. There's a permanent record, and because the ledger is held by many entities, it's nearly impossible to hack.

The entries are also made using pseudonyms, so there's a certain degree of privacy, and no one person wields full authority over the ledger. That makes blockchain ideal for bitcoin and other cryptocurrencies.

And a great many other things — although people disagree about how effective it will be for certain applications.

A little history


The person or people behind the technology, which was created alongside bitcoin, goes by the presumed pseudonym Satoshi Nakamoto. Nakamoto, an enigmatic figure who has proved all but impossible to definitively identify, wanted a decentralized, permanent and public means of recording the creation and distribution of every bitcoin. Today, blockchains underpin a dizzying number of cryptocurrencies.

So far, people have mined more than 18 million of the 21 million bitcoins that will ever exist. Every one of them, and any transaction using them, has been recorded on a blockchain. That gives you a sense of the volume of data the technology can handle.

Although Nakamoto designed blockchain as a public ledger, it wasn't long before permissions-backed blockchains controlled by a given company or group appeared. They don't offer the same level of immutability because they're held on a far smaller number of computers. And, despite the hype, the thinking behind them isn't new.

Permission-based blockchains are 20-year-old ideas, said Nicholas Weaver, a senior researcher at The International Computer Science Institute. "Whenever someone says 'private blockchain,' just mentally replace that with a Google Doc that can only be updated."

Practical applications


Companies are using blockchains to do a variety of things such as manage pharmaceutical information, track freight shipments and trace the origin of food.

Each application touts the ability of blockchains to keep a complete record of data in a system that can't be easily changed.

Still, some people question the utility of the underlying technology. Sure, it's great for cryptocurrency. But critics scoff at the idea that it's going to revolutionize anything. "Someone who says blockchain can be used to solve Problem X doesn't understand Problem X," Weaver said.

He cites the popular example of using a blockchain to track the production and distribution of food. Advocates say it would improve safety and make it easier to, say, identify the origin of a salmonella outbreak. It would be far easier to use RFID chips or QR codes, he said. Such technology provides a more reliable record because it does not require a person to manually record the data on the ledger, a process that invariably introduces human error.

But Catherine Tucker, a professor at the MIT Sloan School of Management, sees tremendous potential in blockchain technology. She sees blockchains being most useful for managing digital currencies and tracking health and insurance data.

"I think we can all agree that the way we store and record data has not transformed in the same way that other aspects of our use of digital data has," she said. "It makes a lot of sense to identify better technologies for recording data and ensuring its integrity."

Tucker said the important thing for early adopters of blockchain technology to remember is that the technology is "evolving" and companies shouldn't embrace it just for the sake of embracing it. Instead, they ought to make sure they genuinely need the tech and, once they've adopted it, make sure they adapt to changes as it evolves, she said.

AI Disclaimer: An advanced artificial intelligence (AI) system generated the content of this page on its own. This innovative technology conducts extensive research from a variety of reliable sources, performs rigorous fact-checking and verification, cleans up and balances biased or manipulated content, and presents a minimal factual summary that is just enough yet essential for you to function as an informed and educated citizen. Please keep in mind, however, that this system is an evolving technology, and as a result, the article may contain accidental inaccuracies or errors. We urge you to help us improve our site by reporting any inaccuracies you find using the "Contact Us" link at the bottom of this page. Your helpful feedback helps us improve our system and deliver more precise content. When you find an article of interest here, please look for the full and extensive coverage of this topic in traditional news sources, as they are written by professional journalists that we try to support, not replace. We appreciate your understanding and assistance.
Newsletter

Related Articles

0:00
0:00
Close
Vatican hosts first Catholic LGBTQ pilgrimage
Apple Unveils iPhone 17 Series, iPhone Air, Apple Watch 11 and More at 'Awe Dropping' Event
France joins Eurozone’s ‘periphery’ as turmoil deepens, say investors
France Faces New Political Crisis, again, as Prime Minister Bayrou Pushed Out
Nayib Bukele Points Out Belgian Hypocrisy as Brussels Considers Sending Army into the Streets
France, at an Impasse, Heads Toward Another Government Collapse
The Country That Got Too Rich? Public Spending Dominates Norway Election
EU Proposes Phasing Out Russian Oil and Gas by End of 2027 to End Energy Dependence
More Than 150,000 Followers for a Fictional Character: The New Influencers Are AI Creations
EU Prepares for War
Trump Threatens Retaliatory Tariffs After EU Imposes €2.95 Billion Fine on Google
Tesla Board Proposes Unprecedented One-Trillion-Dollar Performance Package for Elon Musk
Gold Could Reach Nearly $5,000 if Fed Independence Is Undermined, Goldman Sachs Warns
Uruguay, Colombia and Paraguay Secure Places at 2026 World Cup
Trump Administration Advances Plans to Rebrand Pentagon as Department of War Instead of the Fake Term Department of Defense
Big Tech Executives Laud Trump at White House Dinner, Unveil Massive U.S. Investments
Tether Expands into Gold Sector with Profit-Driven Diversification
‘Looks Like a Wig’: Online Users Express Concern Over Kate Middleton
Florida’s Vaccine Revolution: DeSantis Declares War on Mandates
Trump’s New War – and the ‘Drug Tyrant’ Fearing Invasion: ‘1,200 Missiles Aimed at Us’
"The Situation Has Never Been This Bad": The Fall of PepsiCo
At the Parade in China: Laser Weapons, 'Eagle Strike,' and a Missile Capable of 'Striking Anywhere in the World'
The Fashion Designer Who Became an Italian Symbol: Giorgio Armani Has Died at 91
Putin Celebrates ‘Unprecedentedly High’ Ties with China as Gazprom Seals Power of Siberia-2 Deal
China Unveils New Weapons in Grand Military Parade as Xi Hosts Putin and Kim
Rapper Cardi B Cleared of Liability in Los Angeles Civil Assault Trial
Google Avoids Break-Up in U.S. Antitrust Case as Stocks Rise
Couple celebrates 80th wedding anniversary at assisted living facility in Lancaster
Information Warfare in the Age of AI: How Language Models Become Targets and Tools
The White House on LinkedIn Has Changed Their Profile Picture to Donald Trump
"Insulted the Prophet Muhammad": Woman Burned Alive by Angry Mob in Niger State, Nigeria
Trump Responds to Death Rumors – Announces 'Missile City'
Druzhba Pipeline Incident Sparks Geopolitical Tensions
Cost of Opposition Leader Péter Magyar's Economic Plan Revealed
Germany in Turmoil: Ukrainian Teenage Girl Pushed to Death by Illegal Iraqi Migrant
United Krack down on human rights: Graham Linehan Arrested at Heathrow Over Three X Posts, Hospitalised, Released on Bail with Posting Ban
Asian and Middle Eastern Investors Avoid US Markets
Ray Dalio Warns of US Shift to Autocracy
Eurozone Inflation Rises to 2.1% in August
Russia and China Sign New Gas Pipeline Deal
Von der Leyen's Plane Hit by Suspected Russian GPS Interference in an Incident Believed to Be Caused by Russia or by Pro-Peace or by Anti-Corruption European Activists
China's Robotics Industry Fuels Export Surge
Suntory Chairman Resigns After Police Probe
Gold Price Hits New All-Time Record
UK Fintechs Explore Buying US Banks
Greece Suspends 5% of Schools as Birth Rate Drops
Apollo to Launch $5 Billion Sports Investment Vehicle
Bolsonaro Trial Nears Close Amid US-Brazil Tension
European Banks Push for Lower Cross-Border Barriers
Poland's Offshore Wind Sector Attracts Investors
×