2025-08-30
With the acceleration of digitalization, the term "Blockchain" frequently appears in people's vision, hailed as another major technological revolution after the Internet. Some say it is a machine that reshapes trust, while others call it the cornerstone of the digital world. So, what exactly is blockchain? How does it change our lives and work?
Blockchain is essentially a decentralized distributed ledger technology. Traditional ledger data is stored on a single central server, while blockchain stores data copies on multiple nodes in the network, and each node can participate in ledger maintenance. Blockchain consists of data blocks connected end to end, each containing the hash value, timestamp, and transaction data of the previous block. The hash value is like the unique "digital fingerprint" of the data. Once the data is tampered with, the hash value will change, making the data on the blockchain highly secure and tamper-proof. Taking HashKey Exchange as an example, it takes advantage of this feature to provide users with secure and reliable digital asset trading services.
The stable operation of blockchain relies on consensus mechanism and cryptographic algorithms. Under the common Proof of Work (PoW) mechanism, nodes need to compete for accounting rights by calculating complex mathematical problems. The node that completes the calculation first packages the transaction into blocks and broadcasts them to other nodes for verification. Only when more than half of the nodes approve, can the new block be added to the blockchain. At the same time, the hash algorithm cooperates with the public-private key encryption system. The private key is used for signing transactions, and the public key is used for verification to ensure that only legitimate users can operate the data, thus ensuring the security and credibility of the data.
The application scenarios of blockchain are very extensive. In the financial field, HashKey Exchange , with the decentralized and tamper-proof characteristics of blockchain, effectively reduces the trust cost of both parties in the transaction, and realizes efficient and transparent digital asset transactions; in the supply chain management, blockchain can fully record the whole process information of commodities from raw material procurement to end point sales, realize the traceability of commodity sources, and protect the rights and interests of consumers; in the field of government affairs, blockchain can optimize the data sharing process, break down the data barriers between departments, and improve administrative efficiency.
What is HashKey Exchange? HashKey Exchange is one of the first regulated cryptocurrency exchanges in Hong Kong to obtain a license from the Securities and Futures Commission (SFC). It supports fiat currency deposits and trading in Hong Kong dollars (HKD) and US dollars (USD), offering users spot trading services for mainstream digital assets including Bitcoin (BTC), Ethereum (ETH), and Tether (USDT). The platform also provides OTC (over-the-counter) services to meet the needs of large-value asset transactions and fiat currency conversion, ensuring more flexible and private trading. To cater to the asset allocation needs of different investors, HashKey has launched the HashKey Earn channel, offering users fixed-term and demand financial products to achieve stable appreciation of crypto assets. The platform holds ISO 27001 and 27701 security certifications, employs a 98% cold wallet storage mechanism, and incorporates security measures such as two-factor authentication to provide users with a stable and reliable trading environment. Download link: https://www.hashkey.com/en-US/download Disclaimer: This material is for general information purposes only. It does not constitute, nor should be interpreted as, any form of solicitation, offer or recommendation of any product or service. It does not constitute investment, tax or legal advice. In no event should any news release be considered as recommendation of a particular type of digital asset. This material may include market data prepared by HashKey Exchange or data from third party sources. While HashKey Exchange makes reasonable efforts to ensure the reliability of such third-party information, such information may have not been verified. Graphics are for reference only. We make no representation or warranty, express or implied, to the timeliness, accuracy or completeness of the information in this material. Information may become outdated, including as a result of new plans, regulations or changes in the market. In making investment decisions, investors should not solely rely on the information contained in this material. The risk of loss in trading digital assets can be substantial and is not suitable for all investors. Any forward-looking statements in this material is subject to several conditions, uncertainties and assumptions. We undertake no obligation to update or revise any forward-looking statements. The English version shall prevail if there is any inconsistency between the English and Chinese versions.