Trust Receipts: Verifiable Proof for Agentic Commerce

A decade ago, online buying was easy to describe. A person found a product, added it to a cart, and paid. That flow is changing. More purchases now begin with an AI agent that searches, compares, applies rules, and acts on behalf of a person or a business. That creates a new question for merchants: how do you prove who authorized a purchase when the action came from an agent?

A Trust Receipt is a cryptographic receipt for an agent-led transaction. It is not a traditional ticket or a private log entry. It is signed evidence that records who acted, what was authorized, how much was paid, and whether the record can be altered without breaking the signature. The goal is simple: make the proof portable, verifiable, and independent of any single platform.

Human purchases leave behind familiar signals: an account, a card, an email, a session, a history. Agent-led purchases can involve delegated permissions, spending limits, approval rules, multiple platforms, and a payment provider that sits between the buyer and the merchant. If a dispute appears later, those signals are often too fragmented to answer the basic questions with confidence.

A Trust Receipt brings identity, authorization, and payment into one signed record. That means a merchant does not need to reconstruct the story from scattered logs, internal messages, or screenshots. The transaction can be checked against the receipt itself.

Each receipt points to the previous one with a cryptographic identifier. That creates a tamper-resistant trail. If a record changes after issuance, the signature no longer validates. The important part is not just that the receipt exists — it is that a third party can verify it without entering the merchant's internal systems.

This is not about adding a technical layer for decoration. It is about being able to demonstrate what happened. Once agent volume grows, reputation alone is not enough to support disputes, reviews, or compliance checks.

A good receipt should not trap the evidence inside one vendor. Trust Receipts are designed to travel with the buyer, the agent, or the merchant. That portability matters because the proof may need to be checked by an auditor, a bank, a buyer, or a different commerce platform later on. When the receipt is portable, verification becomes a property of the evidence instead of a property of the database that issued it.