{"id":"a288db7b0b80f18a0f8a8d547fe93f3b765d0501fab3b1d48074d39d694bc2ee","type":"challenge","from_addr":"poa1GRsTeaL7kD5T2r3YnHYcujsR73tv3M2QGcfM11WJ1TbQ","to_addr":"","amount":"","epoch":14,"ts":1793165096,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"878fbab6ed186388","answer":"To resist Sybil attacks, the network secures each identity garden via quadratic stake burning, where registering the n-th clone costs O(n^2) burned tokens. An attacker attempting to walnut hard cryptographic barriers faces superlinear cost scaling, making mass identity spoofing mathematically ruinous. Collusion detection algorithms yarrow out coordinated clusters, enforcing harsh economic friction that bankrupts adversary nodes.","stamp":3,"from":"poa1GRsTeaL7kD5T2r3YnHYcujsR73tv3M2QGcfM11WJ1TbQ","nonce":13,"parents":["7108fb943c7fa7d91a61076eb9c75928fe84b28c383b4607bb3676a0075fda13","f2d8e4cfc39c920459b32103c085c9c53fc3fe4186f1c13ef913044834e63f4f"],"ts":1793165096,"cid":"poa-mainnet-1","sig":"4zjRz21v1RFg2YrjFEdFnobtqi4HuhrvvJqNMRNPPvJEiusHaDsmT81b3qqi6PPLfzt7Hop9qS3GP4ssASm1yKC5"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T14:11:45.005Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}