What is the difference between work registration and digital copyright certificate?

Our works require copyright registration. Only after copyright registration can they be protected by national laws. So what is the difference between work registration and digital copyright certificates? What is the difference between work registration and digital copyright certificate? The issuance subject and validity of the "Digital Work Copyright Registration Certificate" and the traditional paper "Work Registration Certificate" are the same. The China Copyright Protection Center is a comprehensive copyright social management and social service institution established by the state. DCI (Digital Copyright Unique Identifier) ??is a new digital copyright public service model proposed by the China Copyright Protection Center. DCI takes the online copyright registration of digital works as its core and basic service. Through registration and issuance of digital copyright registration certificates, DCI codes, and DCI labels, digital works are given a lifelong unique copyright identity. Maike.com, which provides visual copyright services, is a strategic partner of the China Copyright Protection Center. Photographers can apply for copyright registration of digital works online, and a digital works copyright registration certificate will be issued within 7 days. Its effectiveness is the same as that of traditional paper versions. The "Work Registration Certificate" is the same.