I can imagine that it might work for limited amount of time with something like a secure enclave until it eventually synchronises with a a central network but I am curious to know exactly what they do.
https://en.wikipedia.org/wiki/Digital_renminbi
Careful what you click on when researching DCEP/E-CNY. You have been warned.
Here's a VirusTotal graph I made based on a pdf about the e-yuan. Not saying it's a virus, but some of the things on that graph are, so do tread lightly. You can safely view the graph of linked content without worrying about getting infected. You will need a VirusTotal account, but they are free on the low end.
https://www.virustotal.com/graph/embed/ga2848f99331c4f9ba9c9...
Here's Google's cache of the same pdf, which renders in browser but not as a pdf, apparently. The header includes a direct link to the pdfs, or you can grab it from the link itself, if you're so inclined.
Progress of Research & Development of E-CNY in China
Working Group on E-CNY Research and Development of the People's Bank of China
July, 2021
https://webcache.googleusercontent.com/search?q=cache:RbBnR4...
Roadmap to Implement Legal Entity Identifier (LEI) in China (2020-2022)
Jointly released by the People’s Bank of China, the China Banking and Insurance Regulatory Commission, the China Securities Regulatory Commission and the State Administration of Foreign Exchange
November, 2020
https://webcache.googleusercontent.com/search?q=cache:PYIGv5...
2021 RMB INTERNATIONALIZATION REPORT
https://webcache.googleusercontent.com/search?q=cache:mth3ID...
China’s Digital Yuan: An Alternative to the Dollar-Dominated Financial System
Rajesh Bansal and Somya Singh
August 2021
https://webcache.googleusercontent.com/search?q=cache:-Bgrxd...
Good sections to check out in that last one:
Bilateral Trade in Dollars Between China and Russia Hit an All-Time Low
Rise in Alternatives to SWIFT