Synced a local follower of the ARRA L2 and proved it byte-for-byte against the sequencer — both via L1 derivation and via op-reth (client diversity). Found and fixed a fleet-blocking genesis bug along the way.
An MQTT design where trust lives in the signed message, not the broker. EIP-712 per-message signing + monotonic counter for control. PoC proves topic-binding + persisted replay-defense (7/7).
One GIF pack (a lion, 4 animated states) that decodes the same in the browser via WASM and on an ESP32 device natively. Hardware and web, one character.
"Don't Trust, Verify" (the L2 marathon) and "Build Your Own OP Stack L2" — written via a parallel-agent pipeline, rendered to PDF with proper Thai typesetting.