The Relocated Center

Decentralized identity architectures promise to eliminate central authorities. Users hold their own credentials in digital wallets, present them directly to verifiers, and no single institution controls the system.

Konstantinidis, Mavridis, and Markakis (arXiv:2603.16403) argue this promise is structurally impossible. Decentralization does not remove the center — it relocates it. The digital wallet becomes the new single point of failure: a compromised wallet exposes all credentials, a wallet provider’s policy decisions constrain all users, and wallet interoperability standards become the governance layer that replaces the old authority.

The analysis uses Critical Systems Thinking to frame digital identity as a “wicked problem” — one that spans technical, legal, social, and ethical dimensions simultaneously. In this framing, every architectural choice that distributes authority along one dimension concentrates it along another. Removing the database centralizes trust in the credential format. Removing the credential issuer centralizes trust in the verification protocol. The center is not a role that can be eliminated; it is a structural property that migrates under redesign.

This is not a critique of specific implementations but of the category. Any system that enables trust between strangers must concentrate that trust somewhere — in a protocol, a format, a device, a key management scheme. The concentration is not an engineering failure to be fixed; it is the mechanism by which trust operates. Distributed trust still requires a shared substrate, and whoever controls that substrate occupies the center.

The practical implication: the question is never “how do we eliminate centralization?” but “where do we want the center to be, and who gets to see it?” The most dangerous centers are the ones that have been moved to a location where they’re invisible to the people who depend on them.