Global surgeon Mark Shrime finds purpose in faith and patients


Jacqueline Fuller
  • English
  • Arabic

As Mark Shrime stepped on to the world’s largest civilian floating hospital off the coast of Sierra Leone this month, it was only a matter of time before the case of a patient on the lengthy surgical list would make him lose sleep.

There is always one whose condition is more urgent than first thought, causing the head and neck surgeon who has served with Mercy Ships for 17 years to wrestle with doubts.

That was the first time really that I thought: ‘Oh, I am different. I am the diversity'
Mark Shrime

The feeling forces him to painstakingly prepare by poring over old text books, visualising again and again the plan for removing the tumour, and plotting an exit if the mass cannot be excised.

Shrime speaks to The National about the operation during his latest rotation aboard the Global Mercy. “I finished with him about nine minutes ago," he says. "It was hard but went well. He is a young gentleman, I want to say 23, something like that, with a very, very large neck tumour,” he says, cupping a hand under his chin.

“I booked him in the operating theatre for three hours and it took five. But everything came out like it was supposed to, and now we’ll just hope that his recovery is smooth.”

As he explains, the factors complicating cases differ. It might be that a growth is engulfing the structures between oesophagus and skin, enveloping the jugular vein, pushing the carotid artery back towards the spine, impeding the airway, encompassing crucial nerves, or replacing an entire jaw bone.

Lack of access to surgery

Common to all is a chronic lack of access to surgery that allows what Shrime, the international chief medical officer of the Christian charitable organisation, describes as an occupying force in the neck to expand unimpeded.

It seems inconceivable that barriers to surgical care cause more deaths in low and middle-income countries than HIV/Aids, malaria and tuberculosis combined, but Shrime says research proves this is so.

“Two thirds of the world’s population cannot access surgery when they need it. The reason the case I just came from was so difficult was because the poor guy had had that tumour growing for years, not because he wanted to but because he didn’t have a way to get surgery.

Dr Mark Shrime, with a patient and his mentor Dr Gary Parker, says that common to all those who make their way up the Mercy Ships gangways is a chronic lack of access to surgery. That, and courage. Photo: Mercy Ships
Dr Mark Shrime, with a patient and his mentor Dr Gary Parker, says that common to all those who make their way up the Mercy Ships gangways is a chronic lack of access to surgery. That, and courage. Photo: Mercy Ships

“That’s why the development work we do is so important, because people shouldn’t be waiting for a ship to come in to do their surgery. Their healthcare system should be able to take care of them.

“Surgery has often been viewed as this thing you get once you’ve figured out malnutrition and antenatal care and infectious disease, but I would never sign up to live in a country without access to surgery. None of us would. So why do we say that it’s a luxury for everyone else?”

Shrime speaks almost evangelically of learning to listen to his patients in sub-Saharan Africa, diagnosing and then treating their life-threatening tumours – as well as the underlying injustices that they represent.

First, though, came the transition from successful but reluctant physician in academic practice in Boston to global health advocate, which took two decades and is recounted in his part-memoir, part self-help guide, Solving for Why.

My why is giving people back their seat at the table of humanity

The book is full of anecdotes that led to and go beyond the moment he got off the “moving sidewalk” that was propelling him from graduation to a safe retirement. His advice, in a nutshell, is not to forgo doing what we love, what matters to us most, in favour of job security, cachet or financial recompense.

Path over purpose, he says, never pans out. “My why is giving people back their rightful seat at the table of humanity.

“Fundamentally, I am convinced that the closest we can get to our 'why' is getting outside of ourselves. Everyone’s 'why' is different. I have these skills and I want to do something with them for those who are impoverished or have been 'othered'.”

Born to Melkite Catholic parents in Beirut in 1974, his long journey to revelation perhaps began when he was a year old, just after the Lebanese civil war broke out. A gun was aimed at the head of Souad, his pregnant mother, and then at him at a militia checkpoint as his father, George, was forced from their car.

That his parents survived the incident and escaped the conflict to begin anew in Texas gave young Mark a strong sense that they had not done so for him to lead a mediocre existence. As with many eldest sons of immigrants to the US, Shrime says he had three career options: doctor, lawyer or failure.

Shrime discovered the joys of rock climbing in his thirties and applied 'in a fit of hubris' to compete on the sports entertainment show American Ninja Warrior. Photo: Mark Shrime
Shrime discovered the joys of rock climbing in his thirties and applied 'in a fit of hubris' to compete on the sports entertainment show American Ninja Warrior. Photo: Mark Shrime

In the end, daring to take the risk of failing magnificently as a contestant at the unlikely entertainment sport that is American Ninja Warrior eventually enabled him to find much-needed meaning in the truest Platonic sense as a medic.

Rise of the Ninja Surgeon

Having discovered the joys of rock climbing in his 30s, he was watching videos of athletes competing on the arduous obstacles when a fit of “hubris” made him apply, along with 75,000 other hopefuls, in 2016.

Which is how he eventually came to be limbering up at 4.30am one chilly spring day in Cincinnati, Ohio, for what was his third and, although he did not know it then, final attempt to qualify.

“I was one of the last people to run, meaning I had the entire night to just sit there and stew about how I had to be better than last time. Three strides in, I stepped off the course out of sheer anxiety response. It’s never happened to me before. That was the end of my Ninja Warrior competitive career.

“I went out on basically as low as you can get. American Ninja was very much part of my public persona. What am I going to keep from this? Who am I now? There has been a lot to learn.”

Shrime would later overcome innate shyness to appear on stage and screen as a sought-after speaker. Photo: Mark Shrime
Shrime would later overcome innate shyness to appear on stage and screen as a sought-after speaker. Photo: Mark Shrime

Freedom from failure

No other competitor did worse on the night, but Shrime credits the freedom from feeling such fear throughout the three seasons and trying anyway as the means for venturing to do the same professionally.

His childhood home was in a nondescript residential neighbourhood of Dallas, Texas, with two-storey strip malls, a bank, grocery shops and Tex-Mex restaurants, where 20 or so years later he would be robbed at gunpoint of $18 while getting out of his Volvo after work.

George, an engineer, and Souad imposed an “uneasy balance” on their three children, homeschooling at weekends in Arabic and French while insisting they fit in and speak English like the US newscaster Dan Rather.

Shrime grew up bookish and unathletic alongside his extroverted siblings, Maria, a former physical therapist and recent contestant on the reality TV series Survivor, and Ryan, an actor, writer, director and producer.

Yet, he, too, would overcome shyness to appear on stage and screen as a sought-after speaker at more than 160 events, including a TEDx Talk, if not on American Ninja Warrior.

George Shrime with his children Mark, Maria and Ryan in Sequoia National Park, California. Photo: Mark Shrime
George Shrime with his children Mark, Maria and Ryan in Sequoia National Park, California. Photo: Mark Shrime

“It’s just a weird thing. We’ve never talked about it as the three of us kids, but we all have an attitude like: ‘This might be a stupid decision, but what the heck.’ That serves us well sometimes and serves us very poorly sometimes.”

A deeper purpose

For a while, a long-haired Shrime practised guitar incessantly, dressed in black, and sent letters proffering his services to the pioneering Christian rock band Petra. “Their music had a deeper purpose that aligned to the things I believed in. I could proudly feel like I’m listening to music that I love and also worshipping at the same time.”

There were other ambitions, of being a missionary in the mould of the 19th-century British Baptist Hudson Taylor, or a philosopher or linguist, anything other than being a doctor. As with music, however, George refused to countenance any child of his studying a subject whose “only purpose was to perpetuate itself”.

Maybe the med schools sensed an unspoken hope that all 25 would reject me

Educated at the Cistercian Preparatory School by Hungarian monks, Shrime graduated valedictorian in a class of 28 that was all white but for two Asians and him. Despite being teased for taking cream cheese and olive sandwiches in packed lunches, the realisation that he was Other only dawned the day after the First Gulf War began, when a fellow student drove into the car park with a song intended as an offence to Arabs blaring from the speakers. “That was the first time really that I thought: ‘Oh, I am different. I am the diversity'.’’

Writing on the wall

At Princeton, with his degree in molecular biology drawing to a close, Shrime sent out applications to medical schools across the US but is not sure what made him begin taping one rejection letter after another to the dormitory wall.

“There may have been an ‘I actually can’t do this, nobody’s going to accept me, and look at the 23 rejection letters on my wall, here’s the proof’. Maybe the med schools sensed an unspoken hope that all 25 would reject me because then I could be free of this obligation.”

Alas, two, including the University of Texas Southwestern Medical Centre, didn’t. “I failed at failing,” he concedes, smiling.

A few weeks before graduating summa cum laude, he lost his "rock" when George died from non-Hodgkin's lymphoma at the age of 55. Shrime, who was spending the summer on research in college, never got to say goodbye.

“I’ve changed, my family has changed, the world has changed. What would he have thought about the way my career, my brother’s career, my sister’s career have gone? I like to think that he would have been proud, and that’s something both my parents were really good at. My mother carried that on for 28 years without her husband.”

Field of dreams

Shrime carried on with what he saw as filial duty. In the middle of an arduous five-year residency (ear, nose and throat) at the New York Presbyterian Hospital, which followed a year teaching organic chemistry in Singapore (one of many failed attempts to escape medicine) and four years of medical school, a friend invited him to an exhibition of photographs he had taken with Mercy Ships off the coast of Liberia in West Africa.

Deprived of sleep, he went nonetheless and still has vivid memories of “health renewed, sight regained, faces mended and justice restored”, all made possible by a surgeon with a knife. He signed up the next day.

In July 2008, after six months of travelling, Shrime boarded the Africa Mercy off Monrovia, descended the red staircase to the hospital deck, turned right and then left, and had an epiphany.

“There were all these patients with head and neck tumours – pre-op all the way to just about to be discharged – and it really was: ‘Oh, my god, this is what I had been training for 15 years to do, and I didn’t even know it.’”

Emmanoel, one of Mercy Ships' first patients in Congo, was three when Shrime reconstructed his palate after removing a fist-sized tumour in his mouth that was suffocating him. This is among his surgeon's favourite post-operative pictures. Photo Credit: Mercy Ships 2014
Emmanoel, one of Mercy Ships' first patients in Congo, was three when Shrime reconstructed his palate after removing a fist-sized tumour in his mouth that was suffocating him. This is among his surgeon's favourite post-operative pictures. Photo Credit: Mercy Ships 2014

So transformative was the experience that Shrime thinks had he been single at the time he would have gone home, packed up and returned immediately. Instead, he completed another fellowship (microvascular reconstructive surgery) at the University of Toronto, did two years full-time as an attending surgeon at Boston Medical Centre, and only then went to one day a week as he began a PhD at Harvard in health policy with a concentration, aptly enough, in decision science.

Long look before 'leap'

“One of the problems with me is that I’m not very brave. As much as I hated medicine in the US, it’s a stable career and stability is important.

“I’d like to tell you that it was this sort of mindful ‘OK, I’m scared and I’m going to leap off the moving sidewalk anyway.' There was some of that but also this, like, ‘I’m so done with what I’m at right now.’ It was a slow process.”

Shrime turned 50 in August, celebrating with friends at a Lebanese restaurant with the same kind of “birthday cake” – a raw meat and bulgur wheat dish called kibbeh nayeh with a candle stuck in it – as he did as a child. That he has managed to dedicate a third of those years in part or full to Mercy Ships, he says, is mind-blowing.

Asked whether he would have followed the advice to “keep your heart towards the poor” in a commencement speech at his Cistercian alma mater, had he been sitting listening to it in 1992 instead of at the podium imparting the words in 2019, he pauses.

During the commencement speech he gave at Cistercian Preparatory School, his alma mater, in 2019, Shrime advised the graduates to 'keep your heart towards the poor'. Photo: Mark Shrime
During the commencement speech he gave at Cistercian Preparatory School, his alma mater, in 2019, Shrime advised the graduates to 'keep your heart towards the poor'. Photo: Mark Shrime

“I think the answer might be 'no', because the things I was saying to that audience are what I wish somebody had told me, but I live with anxiety. I have fear. I don’t know that I would have been, like, ‘OK, throw it all to the wind. Go pursue this thing.’

“But the other half of your question – would I have found my 'why' – I get in a different version from students, residents and trainees: Do you regret going to med school, residency, fellowships when you hated it so much? I find it’s impossible to answer. The only reason I can do what I’m doing right now is because I did all that. Had I not, it would have been different but what sort of 'why' I would have found is really interesting.’’

These days, Shrime is based in New York City, where he focuses on research, strategic thinking, and longer-term investments to chip away at the five million missing healthcare providers on the African continent “who should be there”, or works in Africa.

Full circle

For six to 12 weeks each year, though, he is back aboard the Global Mercy or the Africa Mercy, which have come to feel like home among the close-knit communities who crew the hospital ships.

He talks about how much it means to be able to resume “the beautiful dance of the operating room” that those stays afford. “I mean, that was my 'why' 17 years ago, and it’s still there.

“You know, they say there’s a day that you pick up your child for the last time, and you don’t know it. There’s going to be a day when it’s my last time on Mercy Ships, either because I retire or stop doing surgery, and that’ll be sad,” he says, a sombre note creeping in. “That will be sad.”

Paatal Lok season two

Directors: Avinash Arun, Prosit Roy 

Stars: Jaideep Ahlawat, Ishwak Singh, Lc Sekhose, Merenla Imsong

Rating: 4.5/5

Specs%3A%202024%20McLaren%20Artura%20Spider
%3Cp%3E%3Cstrong%3EEngine%3A%3C%2Fstrong%3E%203.0-litre%20twin-turbo%20V6%20and%20electric%20motor%3Cbr%3E%3Cstrong%3EMax%20power%3A%3C%2Fstrong%3E%20700hp%20at%207%2C500rpm%3Cbr%3E%3Cstrong%3EMax%20torque%3A%3C%2Fstrong%3E%20720Nm%20at%202%2C250rpm%3Cbr%3E%3Cstrong%3ETransmission%3A%3C%2Fstrong%3E%20Eight-speed%20dual-clutch%20auto%3Cbr%3E%3Cstrong%3E0-100km%2Fh%3A%3C%2Fstrong%3E%203.0sec%3Cbr%3E%3Cstrong%3ETop%20speed%3A%20%3C%2Fstrong%3E330kph%3Cbr%3E%3Cstrong%3EPrice%3A%3C%2Fstrong%3E%20From%20Dh1.14%20million%20(%24311%2C000)%3Cbr%3E%3Cstrong%3EOn%20sale%3A%3C%2Fstrong%3E%20Now%3C%2Fp%3E%0A
UAE currency: the story behind the money in your pockets
The specs

Engine: 4.0-litre V8 twin-turbocharged and three electric motors

Power: Combined output 920hp

Torque: 730Nm at 4,000-7,000rpm

Transmission: 8-speed dual-clutch automatic

Fuel consumption: 11.2L/100km

On sale: Now, deliveries expected later in 2025

Price: expected to start at Dh1,432,000

THE LIGHT

Director: Tom Tykwer

Starring: Tala Al Deen, Nicolette Krebitz, Lars Eidinger

Rating: 3/5

THE SPECS

Engine: 2.0-litre four-cylinder turbo

Transmission: eight-speed automatic

Power: 258hp at 5,000-6,500rpm

Torque: 400Nm from 1,550-4,400rpm

Fuel economy, combined: 6.4L/100km

Price, base: from D215,000 (Dh230,000 as tested)

On sale: now

%20Ramez%20Gab%20Min%20El%20Akher
%3Cp%3E%3Cstrong%3ECreator%3A%3C%2Fstrong%3E%20Ramez%20Galal%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EStarring%3A%3C%2Fstrong%3E%20Ramez%20Galal%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EStreaming%20on%3A%20%3C%2Fstrong%3EMBC%20Shahid%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3ERating%3A%20%3C%2Fstrong%3E2.5%2F5%3C%2Fp%3E%0A
Volvo ES90 Specs

Engine: Electric single motor (96kW), twin motor (106kW) and twin motor performance (106kW)

Power: 333hp, 449hp, 680hp

Torque: 480Nm, 670Nm, 870Nm

On sale: Later in 2025 or early 2026, depending on region

Price: Exact regional pricing TBA

Islamophobia definition

A widely accepted definition was made by the All Party Parliamentary Group on British Muslims in 2019: “Islamophobia is rooted in racism and is a type of racism that targets expressions of Muslimness or perceived Muslimness.” It further defines it as “inciting hatred or violence against Muslims”.

The lowdown

Rating: 4/5

Indoor cricket in a nutshell
Indoor Cricket World Cup - Sept 16-20, Insportz, Dubai

16 Indoor cricket matches are 16 overs per side
8 There are eight players per team
9 There have been nine Indoor Cricket World Cups for men. Australia have won every one.
5 Five runs are deducted from the score when a wickets falls
4 Batsmen bat in pairs, facing four overs per partnership

Scoring In indoor cricket, runs are scored by way of both physical and bonus runs. Physical runs are scored by both batsmen completing a run from one crease to the other. Bonus runs are scored when the ball hits a net in different zones, but only when at least one physical run is score.

Zones

A Front net, behind the striker and wicketkeeper: 0 runs
B Side nets, between the striker and halfway down the pitch: 1 run
C Side nets between halfway and the bowlers end: 2 runs
D Back net: 4 runs on the bounce, 6 runs on the full

Nepotism is the name of the game

Salman Khan’s father, Salim Khan, is one of Bollywood’s most legendary screenwriters. Through his partnership with co-writer Javed Akhtar, Salim is credited with having paved the path for the Indian film industry’s blockbuster format in the 1970s. Something his son now rules the roost of. More importantly, the Salim-Javed duo also created the persona of the “angry young man” for Bollywood megastar Amitabh Bachchan in the 1970s, reflecting the angst of the average Indian. In choosing to be the ordinary man’s “hero” as opposed to a thespian in new Bollywood, Salman Khan remains tightly linked to his father’s oeuvre. Thanks dad. 

HER%20FIRST%20PALESTINIAN
%3Cp%3EAuthor%3A%20Saeed%20Teebi%3C%2Fp%3E%0A%3Cp%3EPages%3A%20256%3C%2Fp%3E%0A%3Cp%3EPublisher%3A%C2%A0House%20of%20Anansi%20Press%3C%2Fp%3E%0A

Mercer, the investment consulting arm of US services company Marsh & McLennan, expects its wealth division to at least double its assets under management (AUM) in the Middle East as wealth in the region continues to grow despite economic headwinds, a company official said.

Mercer Wealth, which globally has $160 billion in AUM, plans to boost its AUM in the region to $2-$3bn in the next 2-3 years from the present $1bn, said Yasir AbuShaban, a Dubai-based principal with Mercer Wealth.

Within the next two to three years, we are looking at reaching $2 to $3 billion as a conservative estimate and we do see an opportunity to do so,” said Mr AbuShaban.

Mercer does not directly make investments, but allocates clients’ money they have discretion to, to professional asset managers. They also provide advice to clients.

“We have buying power. We can negotiate on their (client’s) behalf with asset managers to provide them lower fees than they otherwise would have to get on their own,” he added.

Mercer Wealth’s clients include sovereign wealth funds, family offices, and insurance companies among others.

From its office in Dubai, Mercer also looks after Africa, India and Turkey, where they also see opportunity for growth.

Wealth creation in Middle East and Africa (MEA) grew 8.5 per cent to $8.1 trillion last year from $7.5tn in 2015, higher than last year’s global average of 6 per cent and the second-highest growth in a region after Asia-Pacific which grew 9.9 per cent, according to consultancy Boston Consulting Group (BCG). In the region, where wealth grew just 1.9 per cent in 2015 compared with 2014, a pickup in oil prices has helped in wealth generation.

BCG is forecasting MEA wealth will rise to $12tn by 2021, growing at an annual average of 8 per cent.

Drivers of wealth generation in the region will be split evenly between new wealth creation and growth of performance of existing assets, according to BCG.

Another general trend in the region is clients’ looking for a comprehensive approach to investing, according to Mr AbuShaban.

“Institutional investors or some of the families are seeing a slowdown in the available capital they have to invest and in that sense they are looking at optimizing the way they manage their portfolios and making sure they are not investing haphazardly and different parts of their investment are working together,” said Mr AbuShaban.

Some clients also have a higher appetite for risk, given the low interest-rate environment that does not provide enough yield for some institutional investors. These clients are keen to invest in illiquid assets, such as private equity and infrastructure.

“What we have seen is a desire for higher returns in what has been a low-return environment specifically in various fixed income or bonds,” he said.

“In this environment, we have seen a de facto increase in the risk that clients are taking in things like illiquid investments, private equity investments, infrastructure and private debt, those kind of investments were higher illiquidity results in incrementally higher returns.”

The Abu Dhabi Investment Authority, one of the largest sovereign wealth funds, said in its 2016 report that has gradually increased its exposure in direct private equity and private credit transactions, mainly in Asian markets and especially in China and India. The authority’s private equity department focused on structured equities owing to “their defensive characteristics.”

WHAT IS A BLACK HOLE?

1. Black holes are objects whose gravity is so strong not even light can escape their pull

2. They can be created when massive stars collapse under their own weight

3. Large black holes can also be formed when smaller ones collide and merge

4. The biggest black holes lurk at the centre of many galaxies, including our own

5. Astronomers believe that when the universe was very young, black holes affected how galaxies formed

At Eternity’s Gate

Director: Julian Schnabel

Starring: Willem Dafoe, Oscar Isaacs, Mads Mikkelsen

Three stars

Employment lawyer Meriel Schindler of Withers Worldwide shares her tips on achieving equal pay
 
Do your homework
Make sure that you are being offered a fair salary. There is lots of industry data available, and you can always talk to people who have come out of the organisation. Where I see people coming a cropper is where they haven’t done their homework.
 
Don’t be afraid to negotiate

It’s quite standard to negotiate if you think an offer is on the low side. The job is unlikely to be withdrawn if you ask for money, and if that did happen I’d question whether you want to work for an employer who is so hypersensitive.
 
Know your worth
Women tend to be a bit more reticent to talk about their achievements. In my experience they need to have more confidence in their own abilities – men will big up what they’ve done to get a pay rise, and to compete women need to turn up the volume.
 
Work together
If you suspect men in your organisation are being paid more, look your boss in the eye and say, “I want you to assure me that I’m paid equivalent to my peers”. If you’re not getting a straight answer, talk to your peer group and consider taking direct action to fix inequality.

Timeline

2012-2015

The company offers payments/bribes to win key contracts in the Middle East

May 2017

The UK SFO officially opens investigation into Petrofac’s use of agents, corruption, and potential bribery to secure contracts

September 2021

Petrofac pleads guilty to seven counts of failing to prevent bribery under the UK Bribery Act

October 2021

Court fines Petrofac £77 million for bribery. Former executive receives a two-year suspended sentence 

December 2024

Petrofac enters into comprehensive restructuring to strengthen the financial position of the group

May 2025

The High Court of England and Wales approves the company’s restructuring plan

July 2025

The Court of Appeal issues a judgment challenging parts of the restructuring plan

August 2025

Petrofac issues a business update to execute the restructuring and confirms it will appeal the Court of Appeal decision

October 2025

Petrofac loses a major TenneT offshore wind contract worth €13 billion. Holding company files for administration in the UK. Petrofac delisted from the London Stock Exchange

November 2025

180 Petrofac employees laid off in the UAE

'Skin'

Dir: Guy Nattiv

Starring: Jamie Bell, Danielle McDonald, Bill Camp, Vera Farmiga

Rating: 3.5/5 stars

Scotland v Ireland:

Scotland (15-1): Stuart Hogg; Tommy Seymour, Huw Jones, Sam Johnson, Sean Maitland; Finn Russell, Greig Laidlaw (capt); Josh Strauss, James Ritchie, Ryan Wilson; Jonny Gray, Grant Gilchrist; Simon Berghan, Stuart McInally, Allan Dell

Replacements: Fraser Brown, Jamie Bhatti, D'arcy Rae, Ben Toolis, Rob Harley, Ali Price, Pete Horne, Blair Kinghorn

Coach: Gregor Townsend (SCO)

Ireland (15-1): Rob Kearney; Keith Earls, Chris Farrell, Bundee Aki, Jacob Stockdale; Jonathan Sexton, Conor Murray; Jack Conan, Sean O'Brien, Peter O'Mahony; James Ryan, Quinn Roux; Tadhg Furlong, Rory Best (capt), Cian Healy

Replacements: Sean Cronin, Dave Kilcoyne, Andrew Porter, Ultan Dillane, Josh van der Flier, John Cooney, Joey Carbery, Jordan Larmour

Coach: Joe Schmidt (NZL)

What is blockchain?

Blockchain is a form of distributed ledger technology, a digital system in which data is recorded across multiple places at the same time. Unlike traditional databases, DLTs have no central administrator or centralised data storage. They are transparent because the data is visible and, because they are automatically replicated and impossible to be tampered with, they are secure.

The main difference between blockchain and other forms of DLT is the way data is stored as ‘blocks’ – new transactions are added to the existing ‘chain’ of past transactions, hence the name ‘blockchain’. It is impossible to delete or modify information on the chain due to the replication of blocks across various locations.

Blockchain is mostly associated with cryptocurrency Bitcoin. Due to the inability to tamper with transactions, advocates say this makes the currency more secure and safer than traditional systems. It is maintained by a network of people referred to as ‘miners’, who receive rewards for solving complex mathematical equations that enable transactions to go through.

However, one of the major problems that has come to light has been the presence of illicit material buried in the Bitcoin blockchain, linking it to the dark web.

Other blockchain platforms can offer things like smart contracts, which are automatically implemented when specific conditions from all interested parties are reached, cutting the time involved and the risk of mistakes. Another use could be storing medical records, as patients can be confident their information cannot be changed. The technology can also be used in supply chains, voting and has the potential to used for storing property records.

The Buckingham Murders

Starring: Kareena Kapoor Khan, Ash Tandon, Prabhleen Sandhu

Director: Hansal Mehta

Rating: 4 / 5

Updated: October 24, 2024, 3:40 PM