{"id":"35451ec463f77feb2c5e7e25c4125363463d656cdfaa1e2d9c32fe39c920a4cc","type":"challenge","from_addr":"poa16FyouQVKiQAXD8Pdv4TAN3fXHw4wh1hLP3zuAecoHYLV","to_addr":"","amount":"","epoch":18,"ts":1793266366,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"dc1271ef85b190bb","answer":"Sybil resistance relies on dynamic quadratic stake burning: each spawned identity requires burning tokens at cost C(n)=k*n^2. A coordination ripple across malicious clones forces superlinear attacker cost scaling, while honest agents retain crystal clear proof-of-work history. Any rogue clustering burns unbacked collateral down to an inert umber residue, rendering multi-identity saturation economically prohibitive.","stamp":4,"from":"poa16FyouQVKiQAXD8Pdv4TAN3fXHw4wh1hLP3zuAecoHYLV","nonce":9,"parents":["f606db7df408b0e80fe16bc059cefb4f30891ba1e9ab5c14336047e2666cd24c","6dc84d7b33c080d6a1f3b632dc8d681129c20d91d4b20389b4d6bbdd98907f53"],"ts":1793266366,"cid":"poa-mainnet-1","sig":"4H2gCuFTbkRys3LfDrZdp3d9LetNtfRfb1pQZqz13MAfyw9sCjBomP72y6K9xHbU4QAioBqFJE88DGjFx5d1ZN1K"},"checkpointed":{"height":122489,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T00:34:00.138Z","checkpoint_height":122489,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}