Rafael Nadal confirmed for Mubadala World Tennis Championship in Abu Dhabi

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.

About 57.5 million people
51.1 million received a jab
6.4 million have not

England 11%
Scotland 9%
Wales 10%
Northern Ireland 14% 

SUNDERLAND 2002-03

No one has ended a Premier League season quite like Sunderland. They lost each of their final 15 games, taking no points after January. They ended up with 19 in total, sacking managers Peter Reid and Howard Wilkinson and losing 3-1 to Charlton when they scored three own goals in eight minutes.

SUNDERLAND 2005-06

Until Derby came along, Sunderland’s total of 15 points was the Premier League’s record low. They made it until May and their final home game before winning at the Stadium of Light while they lost a joint record 29 of their 38 league games.

HUDDERSFIELD 2018-19

Joined Derby as the only team to be relegated in March. No striker scored until January, while only two players got more assists than goalkeeper Jonas Lossl. The mid-season appointment Jan Siewert was to end his time as Huddersfield manager with a 5.3 per cent win rate.

ASTON VILLA 2015-16

Perhaps the most inexplicably bad season, considering they signed Idrissa Gueye and Adama Traore and still only got 17 points. Villa won their first league game, but none of the next 19. They ended an abominable campaign by taking one point from the last 39 available.

FULHAM 2018-19

Terrible in different ways. Fulham’s total of 26 points is not among the lowest ever but they contrived to get relegated after spending over £100 million (Dh457m) in the transfer market. Much of it went on defenders but they only kept two clean sheets in their first 33 games.

LA LIGA: Sporting Gijon, 13 points in 1997-98.

BUNDESLIGA: Tasmania Berlin, 10 points in 1965-66

Soraya Ebrahimi: Who is the BBC journalist Martin Bashir?

Chris Blackhurst: How Diana might still have been alive

Brodie Owen: Bashir used deceit to land interview

Director: Basel Adra, Yuval Abraham, Rachel Szor, Hamdan Ballal

Stars: Basel Adra, Yuval Abraham

Rating: 3.5/5

- set out well ahead of time

- make sure you have at least Dh15 on you Nol card, as there could be big queues for top-up machines

- enter the right cabin. The train may be too busy to move between carriages once you're on

- don't carry too much luggage and tuck it under a seat to make room for fellow passengers

Dr Nawal Al-Hosany: Why more women should be on the frontlines of climate action

Shelina Janmohamed: Why shouldn't a spouse be compensated fairly for housework?

Samar Elmnhrawy: How companies in the Middle East can catch up on gender equality

The National Editorial: Is there much to celebrate on International Women's Day 2021?

Dr Nawal Al-Hosany: Why more women should be on the frontlines of climate action

Shelina Janmohamed: Why shouldn't a spouse be compensated fairly for housework?

Samar Elmnhrawy: How companies in the Middle East can catch up on gender equality

Justin Thomas: Challenge the notion that 'men are from Mars, women are from Venus'

Company name: Entrupy 

Co-founders: Vidyuth Srinivasan, co-founder/chief executive, Ashlesh Sharma, co-founder/chief technology officer, Lakshmi Subramanian, co-founder/chief scientist

Based: New York, New York

Sector/About: Entrupy is a hardware-enabled SaaS company whose mission is to protect businesses, borders and consumers from transactions involving counterfeit goods.  

Initial investment/Investors: Entrupy secured a $2.6m Series A funding round in 2017. The round was led by Tokyo-based Digital Garage and Daiwa Securities Group's jointly established venture arm, DG Lab Fund I Investment Limited Partnership, along with Zach Coelius. 

Total customers: Entrupy’s customers include hundreds of secondary resellers, marketplaces and other retail organisations around the world. They are also testing with shipping companies as well as customs agencies to stop fake items from reaching the market in the first place. 

Bryant Harris: What Joe Biden did during his first week as US President

Kareem Shaheen: Omar Alghabra outshines the racists who malign him

Kareem Shaheen: Canada is failing those who bear its greatest Covid-19 burdens

UAE coins

Dh5 note

Dh10 note

Dh20 note

Engine: Four electric motors, one at each wheel

Power: 579hp

Torque: 859Nm

Transmission: Single-speed automatic

Price: From Dh825,900

On sale: Now

Produced by: Clean Slate Films (Anushka Sharma, Karnesh Sharma) & KriArj Entertainment

Director: Prosit Roy

Starring: Anushka Sharma, Parambrata Chattopadhyay, Ritabhari Chakraborty, Rajat Kapoor, Mansi Multani

Three stars

CDU: "Now is the time to control the German borders and enforce strict border rejections" 

SPD: "Border closures and blanket rejections at internal borders contradict the spirit of a common area of freedom" 

2000: Israel withdraws from Lebanon after nearly 30 years without an officially demarcated border. The UN establishes the Blue Line to act as the frontier. 

2007: Lebanon and Cyprus define their respective exclusive economic zones to facilitate oil and gas exploration. Israel uses this to define its EEZ with Cyprus

2011: Lebanon disputes Israeli-proposed line and submits documents to UN showing different EEZ. Cyprus offers to mediate without much progress.

2018: Lebanon signs first offshore oil and gas licencing deal with consortium of France’s Total, Italy’s Eni and Russia’s Novatek.

2018-2019: US seeks to mediate between Israel and Lebanon to prevent clashes over oil and gas resources.

National Editorial: Why is a Muslim Brotherhood-linked app still on Apple and Google Play?

Damien McElroy: Europe's response to Islamist extremism is encouraging but not enough

Con Coughlin: How extremists are using Zoom and other tools to exploit this pandemic

1) Organ donors can register on the Hayat app, run by the Ministry of Health and Prevention

2) There are about 11,000 patients in the country in need of organ transplants

3) People must be over 21. Emiratis and residents can register. 

4) The campaign uses the hashtag  #donate_hope

• 2018: Formal work begins
• November 2021: First 17 volumes launched 
• November 2022: Additional 19 volumes released
• October 2023: Another 31 volumes released
• November 2024: All 127 volumes completed