LinkedIn has become the default Web2 professional identity layer of the internet. It shapes how we present ourselves, how we get discovered, and how companies hire. Yet its architecture and incentives are still built on a centralized, closed, platform‑first model. At the same time, Web3 professional identity, onchain reputation, and verifiable credentials are emerging as powerful alternatives. This article explains why LinkedIn does not need a full blockchain migration, but it does need a Web...