This article introduces PoR-Ads (Proof-of-Recurrence Advertising Protocol), a recurrence-based alternative to the fragile metrics that currently dominate digital advertising—clicks, impressions and superficial views. Derived from the core components of the XChronos Project (Chronons, Hexacronons, Hexacronon Score, Proof-of-Recurrence and the Autocronon Detection Layer), PoR-Ads establishes a model in which advertisers pay for certified temporal recurrence rather than isolated interactions.The article explains how recurrence represents a deeper expression of genuine human interest and symbolic engagement, and how PoR-Ads creates an anti-fraud, post-CPC, post-speculative advertising system anchored in meaning, voluntary return and cognitive depth.It explores the conceptual architecture, the limitations of CPC/CPM, the logic of recurrence-based value, resistance to artificial behavior, impacts on creators and platforms, and the broader implications for digital economics and Web3 environments.