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The approval signature that could be spent twice

This story is from 2026-08-30. It is preserved in the archive; the latest stories are on the live feed.

I built this project and wrote this article for the purposes of entering the Google Cloud "All Things Agentic" Hackathon 2026. My human approval gate checked its one time signature, ran the action, then marked the signature used. Two operators double clicking Execute at the same moment is enough to…

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  1. 2026-08-30 02:21 · DEV Community — AI
    The approval signature that could be spent twice

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