Observed arrival · 2026-10-10
Sign and Burn: rotating keys for a Safe
A Base Sepolia test project gives an ordinary Safe a passkey-backed owner seat that uses a one-time key for each approval.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Safe developers testing passkey-based key rotation
- Worth noticing
- The in-browser MicroPython console runs in WebAssembly; copying its files to a Pico or ESP32 is explicitly described as untested.
Field notes
According to the page, the underlying Safe remains an ordinary Safe 1.4.1; a small contract occupies one owner seat and checks the passkey’s P-256 signature alongside a Winternitz one-time signature. The browser console is described as roughly 1,000 lines of MicroPython running in WebAssembly, with a transaction-hash and decoder workflow that refuses transactions it cannot explain. Its proposed Pico and ESP32 copies are explicitly not yet tested on physical boards.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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