Overview of the Digital Economy, Emerging Digital Technologies, and the Integration of Blockchain with Privacy Computing

Introduction The rapid proliferation of big data, blockchain, and privacy computing is driving the development of the digital economy, which is becoming a pivotal economic form of the future.

Digital Economy Overview The digital economy uses digitized knowledge as a key production factor, with digital technology as the core driver and modern information networks as the carrier, deeply integrating with the real economy to enhance digitalization, networking, and intelligence. It focuses on AI, blockchain, cloud computing, big data, and IoT, promoting industrial digital transformation.

Four dimensions—data value realization, digital industrialization, industrial digitization, and digital governance—define the digital economy. Policies emphasize coordinated domestic and international development, data security, and the deep fusion of digital technology with the real economy.

Digital Technology Trends Emerging technologies include AI, XR (VR/AR), quantum computing, star‑ground collaboration, and privacy computing. AI is expanding into scientific research, bio‑computing, and space exploration. XR reshapes the internet and drives the metaverse. Quantum computing is advancing hybrid quantum‑classical systems and building a full industry chain. Privacy computing protects data while enabling cross‑domain analytics.

Blockchain and Privacy Computing Combining blockchain with privacy computing creates a trusted collaborative framework that secures data during processing, transmission, and computation. This integration supports federated learning, homomorphic encryption, and trusted execution environments, enabling secure cross‑platform data modeling and exchange while preventing data leakage.

The framework consists of an infrastructure layer (storage, computing, networking), a data middle‑platform (credit models, evaluation, services), a federated learning module (resource scheduling, operators, algorithms), a blockchain core layer, and an application/user layer.

Regulatory context includes the 2020 Opinions on market‑oriented data allocation, the Cybersecurity Law, Data Security Law, and Personal Information Protection Law, which together guide secure data development and governance.

Overall, the integration of blockchain and privacy computing is essential for building a secure, trustworthy digital economy that leverages data as a strategic national resource.