2017-专业会计师：何为区块链技术（英文版）_42页_1mb

Summary of "Divided we fall, distributed we stand" – The Professional Accountant's Guide to Distributed Ledgers and Blockchain

Core Content

This report by ACCA (the Association of Chartered Certified Accountants) provides an overview of distributed ledger technology (DLT) and blockchain, focusing on their implications for the accounting profession. It outlines the fundamental concepts, commercial applications, and the future role of professional accountants in a blockchain-enabled world.

Main Points

1. Introduction to the Concept of Distributed Ledgers

• A distributed ledger is a digital database of records shared among participants in a network.
• It ensures that all participants see the same view of the records in real-time, eliminating the need for reconciliation between separate databases.
• Unlike traditional systems where transactions are recorded in one database and then manually re-entered, distributed ledgers combine the transaction and its record into a single, synchronized view.
• This approach allows for external consistency across organizations, leading to a so-called triple-entry system, where records are shared and co-owned.

2. Types of Distributed Ledger Networks

• Public networks are open and permissionless, allowing anyone to join. They are ideal for situations requiring trust between strangers, such as digital currencies like Bitcoin.
• Private networks are closed and permissioned, with pre-selected participants. These are suitable for environments where speed and regulatory compliance are more important than establishing trust between unfamiliar parties.
• Consensus mechanisms are used in both types of networks to validate transactions. In public networks, this is achieved through majority consensus, while in private networks, it may involve a central authority or pre-agreed validation roles.

3. Key Characteristics of Distributed Ledgers

• Immutability: Once a transaction is validated and added to the ledger, it cannot be altered or removed. This provides a reliable audit trail but may raise concerns about data storage and the ability to correct errors.
• Encryption: Ensures the security and authenticity of transactions. In the Bitcoin blockchain, public key cryptography is used to verify that transactions are between the correct parties and that only authorized users can access or spend funds.
• Transparency and Trust: Distributed ledgers enable trust through shared and synchronized records, reducing the need for intermediaries.

Commercial Applications

• DLT has the potential to transform inefficient business processes such as trade finance, financial services (KYC), and supply chain management.
• It can reduce reconciliation costs, increase efficiency, and improve transparency across industries.
• Bitcoin blockchain is a well-known example of a public network, demonstrating how DLT can be used to securely track and transfer value.

Impact on Professional Accountants

• The rise of DLT will likely change the revenue model of accounting firms, shifting from time-based billing to expertise-based rate cards.
• Accountants may need to move away from low-margin activities like transaction checking and focus on interpretation and analysis of data from distributed ledgers.
• There will be a growing need for adaptability, technical knowledge, and an understanding of value transfer and accounting for assets in a digital, decentralized environment.

Key Trends and Future Outlook

• DLT is expected to become a mainstream technology over the next five years.
• The adoption of DLT will depend on its ability to scale and meet the needs of various industries.
• Professional accountants should proactively engage with DLT to prepare for its impact on their roles and services.

Conclusion

• The report emphasizes the importance of awareness and understanding of DLT for professional accountants.
• As the technology evolves, it will bring new challenges and opportunities, requiring accountants to develop new skills and adapt to a changing business landscape.

Key Takeaways

• Distributed ledgers enable real-time, synchronized, and transparent record-keeping.
• Blockchain is a form of DLT that uses chains of blocks and consensus algorithms to secure transactions.
• The future of accounting may involve a shift towards value-based services and automated, standardized processes.
• Immutability and encryption are core features that ensure security and trust in blockchain systems.
• Regulatory considerations will play a crucial role in shaping the future of DLT and its integration into accounting practices.