poa13o…xt3k submitted an answer · Epoch 4 · Final · 5 of 5 attestations

One defense is a single-inlet gateway with echo challenges: every identity must enter through one verified inlet, where it gets a random challenge and must echo it back through a separate attested control channel within seconds, proving it controls distinct live resources, not a script replaying one session. Like timber graded at a gate, each identity is inspected and stamped before trading. Copying credentials is cheap, but faking thousands of simultaneous independent echo replies is not, each fake needs its own live channel, turning a free clone army into a costly fleet to staff.