The main applications of blockchain include: digital currency, financial asset transaction settlement, digital government, and data storage and anti-counterfeiting services. Blockchain is a database technology that links data blocks in an orderly manner, with each block responsible for recording a file of data and encrypting it to ensure that the data cannot be modified or forged.
Blockchain is essentially a distributed database system, also known as a distributed shared ledger, that utilizes cryptographic technology, involves multiple parties in its joint maintenance, and is continuously updated. Each page of the shared ledger is a block, and each block is filled with transaction records. The anonymity, decentralization, transparency, and immutability of blockchain technology have made it highly favored by enterprises and have led to its wider application.
Scope of Blockchain Applications
1. Financial sector
Blockchain can provide a trust mechanism and has the potential to change the financial infrastructure. Various financial assets such as equity, bonds, bills, warehouse receipts, and fund shares can be integrated into the blockchain technology system, becoming on-chain digital assets, and stored, transferred, and traded on the blockchain.
The decentralized nature of blockchain technology can reduce transaction costs, making financial transactions more convenient, intuitive, and secure. The integration of blockchain technology with the financial industry will inevitably create more and more business models, service scenarios, business processes, and financial products, thus having a greater impact on the development of financial markets, financial institutions, financial services, and the financial industry as a whole. With the improvement of blockchain technology and its integration with other fintech solutions, blockchain technology will gradually adapt to large-scale financial application scenarios.
2. Public service sector
Traditional public services rely on limited data dimensions, resulting in incomplete and outdated information. Blockchain's immutable nature makes on-chain digital proofs highly credible, enabling the establishment of entirely new authentication mechanisms in areas such as property rights, notarization, and public welfare, thereby improving the management level of public services.
Information related to the charitable process, such as donation projects, fundraising details, fund flows, and beneficiary feedback, can be stored on the blockchain. Under the premise of meeting the privacy protection requirements of project participants and other relevant laws and regulations, it can be conditionally disclosed to facilitate public and social supervision.
3. Information security field
By leveraging the traceability and immutability of blockchain, the authenticity of data sources can be ensured, while also guaranteeing the unforgeability of data. Blockchain technology will fundamentally change the security issues of information dissemination paths.
After evolving through physical forms such as commodities, precious metals, and paper money, digital currency has become the development direction of the digital economy era. Compared to physical currency, digital currency has advantages such as portability and storage, low circulation costs, ease of use, ease of anti-counterfeiting and management, breaking geographical restrictions, and better integration. Bitcoin technically achieves an electronic cash system that allows direct transfers between transacting parties without the need for third-party intermediaries or arbitration. In June 2019, internet giant Facebook also released the white paper for its cryptocurrency Libra. Both Bitcoin and Libra rely on blockchain technology as their underlying technology.
my country began developing its central bank digital currency (CBDC) as early as 2014. my country's CBDC/EP adopts a two-tier operating system: the central bank does not directly issue digital currency to the public; instead, it distributes the digital currency to various commercial banks or other legally operating institutions, which then exchange it for public use. In early August 2019, the central bank held a teleconference on its work for the second half of the year, requiring accelerated progress in the research and development of the national legal digital currency. Blockchain technology for financial asset transaction settlement inherently possesses financial attributes and is bringing about disruptive changes to the financial industry. In terms of payment and settlement, under the blockchain distributed ledger system, multiple market participants jointly maintain and synchronize a "general ledger" in real time. Payment, clearing, and settlement tasks that currently take two or three days can be completed in just a few minutes, reducing the complexity and cost of interbank and cross-border transactions. Simultaneously, the underlying encryption technology of blockchain ensures that participants cannot tamper with the ledger, ensuring transparent and secure transaction records. Regulatory authorities can easily track on-chain transactions and quickly locate high-risk fund flows.
In securities issuance and trading, traditional stock issuance processes are lengthy, costly, and complex. Blockchain technology can weaken the role of underwriters, helping all parties establish a fast and accurate information exchange and sharing channel. Issuers can handle issuance themselves through smart contracts, regulatory authorities can conduct unified review and verification, and investors can bypass intermediaries to operate directly. In digital bills and supply chain finance, blockchain technology can effectively solve the financing difficulties of SMEs. Currently, supply chain finance rarely benefits SMEs in the upstream of the industrial chain because they often do not have direct trade relations with core enterprises, making it difficult for financial institutions to assess their creditworthiness. Based on blockchain technology, we can establish a consortium blockchain network covering core enterprises, upstream and downstream suppliers, and financial institutions. Core enterprises issue accounts receivable vouchers to their suppliers; after the vouchers are digitized and recorded on the blockchain, they can circulate among suppliers. Each level of supplier can use the digital vouchers to prove their corresponding financing amount. Blockchain was initially used as a mechanism to support Bitcoin. To solve the interoperability problem of digital currencies, Satoshi Nakamoto designed an immutable ledger and used encryption technology to connect the data across the blockchain.
This idea was quickly validated in BTC and other cryptocurrencies; however, the applications of blockchain extend far beyond this. In this article, we have provided a brief list of 15 use cases for blockchain technology.
1. Funds transfer
The original concept behind blockchain technology is a powerful application. Using blockchain technology for fund transfers can be cheaper and faster than existing remittance services, especially in cross-border transactions. In the traditional financial system, these transactions are often slow and expensive. Even in the modern US financial system, fund transfers between accounts can take days, while blockchain transactions can be completed in minutes.
2. Financial Exchanges
Over the past few years, numerous companies offering decentralized cryptocurrency exchanges have emerged. In the previous use case, we pointed out that using blockchain for exchange enables faster and cheaper transactions. Furthermore, decentralized exchanges do not require investors to deposit their assets with a central authority, meaning users retain greater control over their assets and transactions are more secure. While blockchain-based exchanges currently primarily operate in the cryptocurrency space, this concept is equally applicable to more traditional investments.
3. Loans
Lenders can use blockchain to execute mortgage loans via smart contracts. Smart contracts built on the blockchain allow for the automatic triggering of transactions such as service payments, margin calls, full loan repayments, and collateral releases under certain conditions. As a result, loan processing is faster and cheaper, and lenders can obtain higher interest rates.
4. Insurance
Using smart contracts on the blockchain can provide insurers with greater transparency. Recording all claims on the blockchain will prevent customers from making duplicate claims for the same thing. In addition, using smart contracts can speed up the claims process.
5. Real Estate
Real estate transactions require extensive documentation to verify financial information and ownership before transferring the deed and title to the new owner. Using blockchain technology to record real estate transactions can provide a more secure and convenient way to verify and transfer ownership. This can speed up transactions, reduce paperwork, and save money.
In the past two years, blockchain has undoubtedly been one of the hottest topics. Many people's immediate reaction to blockchain is, "Wow, such advanced technology!" followed by a more common sentiment: "But it doesn't seem to have any direct relevance to my life." This kind of thinking is very common and normal for people who are not involved in related industries. This is because the essence of blockchain is the collection and management of data, which is a term from the field of information technology.
However, we need to be aware that once data collection and management are involved, it directly impacts our lives.
Blockchain is a distributed, shared ledger database with several key characteristics: decentralization, transparency, immutability, and anonymity. Therefore, blockchain applications should be developed based on these characteristics.
1. Digital tokens
The application of blockchain in digital tokens is not limited to Bitcoin, but it is inextricably linked to Bitcoin. Although many people are now wary of cryptocurrencies, it is undeniable that Bitcoin is currently the most successful application of blockchain technology.
2. Identity verification
Identity and access management services play a crucial role in various application areas, but they also face issues such as privacy breaches, identity fraud, and fragmentation, posing significant challenges to users, devices, and systems.
Many people are aware of the recent news about Tencent and Lao Gan Ma chili sauce, which illustrates the problem of "identity fraud." Blockchain technology inherently possesses the ability to solve the problem of counterfeit seals: its immutability, traceability, and perpetual integrity are essential for various contracts. If a large-scale contract system were established, storing all electronic seals and signatures of companies and individuals on the blockchain and disseminating this information within the system, then all counterfeit seals would have nowhere to hide.
3. Cross-border payments
Cross-border payments involve a wide variety of currencies, each with its own exchange rate. Traditional cross-border payments rely heavily on third-party institutions, resulting in cumbersome processes and long settlement cycles. The need for fund clearing and reconciliation leads to relatively slow processing speeds and high fees. Blockchain, through public-private key technology, maintains data consistency across nodes and, through encryption, utilizes immutability and consensus mechanisms to establish a secure and reliable transaction channel.
Currently, companies like Ripple, Circle, and China Merchants Bank have entered the blockchain + cross-border payment market. Application scenarios include digital wallets, trade finance, housing rentals, public welfare and poverty alleviation, cross-border payments, and digital bills. The introduction of blockchain solves the problem of information asymmetry in cross-border payments and establishes a certain level of trust. Furthermore, blockchain's transparent transactions, open information, and permanent record storage ensure traceability and meet regulatory requirements. The resulting cross-border transaction experience is characterized by high efficiency and reduced costs.
