More galleries from The National:
Man uses scrap and spare parts to build electric scooters in Gaza - in pictures
See Jordanian artist Alaa Bliha's impression of Queen Elizabeth II
Rescued bears released in Iraq's mountains - in pictures
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In numbers: China in Dubai
The number of Chinese people living in Dubai: An estimated 200,000
Number of Chinese people in International City: Almost 50,000
Daily visitors to Dragon Mart in 2018/19: 120,000
Daily visitors to Dragon Mart in 2010: 20,000
Percentage increase in visitors in eight years: 500 per cent
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.
Ziina users can donate to relief efforts in Beirut
Ziina users will be able to use the app to help relief efforts in Beirut, which has been left reeling after an August blast caused an estimated $15 billion in damage and left thousands homeless. Ziina has partnered with the United Nations High Commissioner for Refugees to raise money for the Lebanese capital, co-founder Faisal Toukan says. “As of October 1, the UNHCR has the first certified badge on Ziina and is automatically part of user's top friends' list during this campaign. Users can now donate any amount to the Beirut relief with two clicks. The money raised will go towards rebuilding houses for the families that were impacted by the explosion.”
Skewed figures
In the village of Mevagissey in southwest England the housing stock has doubled in the last century while the number of residents is half the historic high. The village's Neighbourhood Development Plan states that 26% of homes are holiday retreats. Prices are high, averaging around £300,000, £50,000 more than the Cornish average of £250,000. The local average wage is £15,458.
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Jetour T1 specs
Engine: 2-litre turbocharged
Power: 254hp
Torque: 390Nm
Price: From Dh126,000
Available: Now
Avatar: Fire and Ash
Director: James Cameron
Starring: Sam Worthington, Sigourney Weaver, Zoe Saldana
Rating: 4.5/5
While you're here
Gavin Esler: Britain seems to be moving ever closer to the brink
Hussein Ibish: George Floyd tragedy a turning point for the US
Shelina Janmohamed: Teach the history of the British Empire
Sanju
Produced: Vidhu Vinod Chopra, Rajkumar Hirani
Director: Rajkumar Hirani
Cast: Ranbir Kapoor, Vicky Kaushal, Paresh Rawal, Anushka Sharma, Manish’s Koirala, Dia Mirza, Sonam Kapoor, Jim Sarbh, Boman Irani
Rating: 3.5 stars
The specs
Price, base / as tested Dh100,000 (estimate)
Engine 2.4L four-cylinder
Gearbox Nine-speed automatic
Power 184bhp at 6,400rpm
Torque 237Nm at 3,900rpm
Fuel economy, combined 9.4L/100km
