Alipay announced a full stack agentic commerce platform and the AHA cross agent protocol system at its AI Ecosystem Partner Conference in Hangzhou on 17 August 2026, with more than 20 device makers, automakers and model companies joining an interconnection plan. Alipay's own documentation reports 300 million agent payments and 100 million users across 12 commercial scenarios, and describes several distinct authorization modes. Moona Intelligence reads the launch as an authorization propagation problem: when one instruction crosses several agents before producing a real payment, connectivity between those agents is not the same thing as inherited authority. Updated 23 August 2026 with newly surfaced evidence from Uber Engineering, published 21 May 2026, describing a production actor chain architecture that carries a human user's identity and every intermediate agent's identity through a chain of short lived tokens, verified against a strict Authority Provenance ledger. Updated again 24 August 2026 with the AI AGENT Act, introduced in the Senate as S.5051 on 21 July 2026 and now referred to the Committee on Commerce, Science, and Transportation, and with Aashis Luitel's 13 August 2026 analysis in The Conversation of a cross system evidence gap: an agent provider, a merchant and a payment provider can each hold an individually accurate record of one transaction while none of them, alone, can show the user authorized that specific action as part of that specific task. Updated again 26 August 2026 with this desk's own independent verification of S.5051: the bill's own official short description at Congress.gov, the precise scope of the redelegation restriction, the duties a permitted downstream delegate keeps, the FTC's registration process and its authority to set specialized terms for particular commercial settings, what a large online platform may do on its own side of a revocation, and the exact capabilities the bill directs NIST to identify or build standards for, with introduction date, sponsor and committee status confirmed unchanged as of 26 August 2026. Updated again 29 August 2026 with the Payment & Clearing Association of China's Self-Regulatory Convention on Agent Payment Applications, issued 24 August 2026 under People's Bank of China guidance: an industry self-regulatory instrument, not a statute or a PBOC regulation, that asks member institutions to sort out an authorization boundary between a user and an agent payment application, sign clear authorization agreements, verify transaction intent, protect a user's right to revoke, cap standing authority through transaction limits, and explore both a Know Your Agent mechanism built on top of KYC and a trusted evidence mechanism spanning user authorization, model decision, payment instruction and risk control, read against the same distinctions between authentication, agent identity, authorization and intent this record has kept separate throughout, and against PBOC Vice Governor Lu Lei's 27 August 2026 public call for market participants to actively implement it.