Dev.to
6/27/2026

How Do You Trust an AI Agent With Your Money? You Don't — You Check Its Receipt
Short summary
As AI agents handle real transactions (refunds, API calls, data moves), you can't just trust them. The solution: verifiable agent behavior—agents produce cryptographically signed receipts proving they followed approved rules without modification. A working demo shows how any cheating (rule swaps, step edits, forged receipts) is caught.
- •AI agents need cryptographic verification of their behavior, not just audit logs
- •Tamper-proof receipts combine rule fingerprints, chained steps, and cryptographic signatures
- •Any tampering—rule swaps, edited steps, or forged signatures—fails verification
Generated with AI, which can make mistakes.
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