every ESP32 leaves the factory with one hand-drawn character latent in its silicon. this page reads your chip's MAC address and wakes the same soul the firmware would, drawn right in your browser by the same engine compiled to WebAssembly.
on verification: this page proves that a face belongs to a chip's MAC address. connect any stick and compare what it shows with what its silicon says it should show. it does not prove the firmware is unmodified (that would need secure boot). the identity function is 30 lines you can read.
engine: doodleink · firmware: doodlesoul · inspired by @mannay's doodles