การใช้งาน Blockchain เข้าสู่ยุคดิจิทัล: ทำได้อะไรบ้าง?
What is Blockchain?
Blockchain is a digital ledger that is decentralized and allows participants to record transactions, released in 2009 via Satoshi Nakamoto. It contains blocks of data that are linked together to form a blockchain. These blocks store information, and once a block is filled, it is linked in a chain with other blocks that have already been filled. Every block in the blockchain has its unique cryptographic hash.
How does Blockchain work?
The blocks in the blockchain record transactions. Once a block is filled with data, it is added to the blockchain. The process of adding the block to the blockchain is done by miners. Miners solve complex mathematical problems that validate transactions on the blockchain network. Once the block is validated, it is added to the blockchain.
Benefits of blockchain technology
The blockchain ledger is public, and everyone can see the transactions that are recorded on it. This makes it almost impossible to change a transaction without it being noticed. This ensures transparency in a peer-to-peer transaction.
The security of the blockchain is one of its primary benefits. The cryptographic hash used in blockchain ensures that the data is immutable and cannot be tampered with.
The decentralized nature of blockchain prevents any central point of control. Instead, power is spread across multiple nodes in the network, making it impossible to corrupt the blockchain.
Usage of blockchain in the digital age
The use of blockchain technology is synonymous with cryptocurrency. Bitcoin, the first cryptocurrency that was created, uses blockchain technology. The blockchain ensures that transactions made with Bitcoin are secure and transparent.
Supply chain management
The use of blockchain technology helps with transparency in the supply chain. Products can be tracked from the moment they are manufactured until they get to the end consumer. The transparency ensures that the consumers are getting fresh and genuine products.
Blockchain technology can be used in voting systems, especially in the digital age. The transparency and security of the blockchain ensure that the results of an election are accurate, secure and transparent.
Blockchain technology can be used to store identity information. Instead of storing identity information in a central database, individual identities can be stored on the blockchain. This ensures that identities cannot be stolen, and it ensures privacy.
Blockchain technology has come a long way since its inception in 2009. It has evolved to become one of the most secure digital technologies. It has found a home in cryptocurrency and has also found use in supply chain management, voting systems and identity management. Its decentralized nature ensures that no central point of control can be leveraged, ensuring transparency, security, and privacy. With this, Blockchain has become a household phenomenon that will shape the future of our digital world.
Q. What is Blockchain exactly?
Blockchain is a digital ledger that is decentralized, and it allows all participants to record transactions.
Q. What is the difference between Blockchain and cryptocurrency?
Blockchain is the platform that enables cryptocurrencies like Bitcoin, Ethereum, and others to be used.
Q. In what industries and sectors can blockchain technology be used?
Blockchain technology can be used in several industries including financial services, supply chain management, healthcare, identity and access management and more.
Q. What are the security features of the blockchain?
The security features of the blockchain include the use of cryptographic hashes, decentralization, and transparency.
Q. How can blockchain technology be used in supply chain management?
Blockchain technology can be used in supply chain management by creating a transparent system that allows businesses to trace goods from the manufacturer to the end consumer.
Q. How can blockchain technology be used in Healthcare?
Blockchain technology can be used in healthcare to create a secure, immutable database that stores patient medical records, prescriptions, and other sensitive data.
Q. How can blockchain technology be used in voting systems?
Blockchain technology can be used in voting systems to create a transparent system that ensures the results of an election are accurate, secure and transparent.
 Alan Schulman, (2020). What is Blockchain? IBM.
 Levy, M., & Rahman, M. (2020). Blockchain technology and its applications. The Journal of Innovation and Knowledge, 5(3), 161-165.
 Sridhar, K. S., Srinivasan, R., & Gautam, L. S. (2020). Blockchain in healthcare: A systematic literature review, synthesizing framework and future research agenda. International Journal of Information Management, 102142.