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.
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Western Region Asia Cup Qualifier, Al Amerat, Oman
The two finalists advance to the next stage of qualifying, in Malaysia in August
Results
UAE beat Iran by 10 wickets
Kuwait beat Saudi Arabia by eight wickets
Oman beat Bahrain by nine wickets
Qatar beat Maldives by 106 runs
Monday fixtures
UAE v Kuwait, Iran v Saudi Arabia, Oman v Qatar, Maldives v Bahrain
Brief scoreline:
Al Wahda 2
Al Menhali 27', Tagliabue 79'
Al Nassr 3
Hamdallah 41', Giuliano 45 1', 62'
Meydan card
6.30pm: Al Maktoum Challenge Round-1 (PA) Group 1 US$65,000 (Dirt) 1,600m
7.05pm: Conditions (TB) $100,000 (Turf) 1,400m
7.40pm: UAE 2000 Guineas Trial (TB) $100,000 (D) 1,600m
8.15pm: Handicap (TB) $175,000 (T) 1,200m
8.50pm: Al Maktoum Challenge Round-1 (TB) Group 2 $350,000 (D) 1,600m
9.25pm: Handicap (TB) $175,000 (D) 1,900m
10pm: Handicap (TB) $135,000 (T) 1,600m
How to help
Send “thenational” to the following numbers or call the hotline on: 0502955999
2289 – Dh10
2252 – Dh 50
6025 – Dh20
6027 – Dh 100
6026 – Dh 200
