3 papers
cs.CR2026
How Agentic Is Agentic Commerce? A Population-Scale Measurement of x402 Adoption and Authenticity
Shengchen Ling, Yajin Zhou, Lei Wu +1
AI agents are said to be forming an economy in which they pay, on their own, for the data, APIs, and compute they consume. x402, which settles a stablecoin payment on-chain for eac…
cs.CR2026
Free-Riding the Agentic Web: A Systematic Security Analysis of x402 Payments
Shengchen Ling, Yihang Huang, Yuefeng Du +4
The x402 protocol has crossed from prototype to infrastructure for the agentic web, driving 130 million all-time transactions and embedded in Google Cloud, Cloudflare, and Stripe.…
cs.CR2025
SoK: Stablecoin Designs, Risks, and the Stablecoin LEGO
Shengchen Ling, Yuefeng Du, Yajin Zhou +4
Stablecoins have become significant assets in modern finance, with a market capitalization exceeding USD 246 billion (May 2025). Yet, despite their systemic importance, a comprehen…