{"id":"d25379aecd1d556205254077e7326c8692897926a7a67369813e46d703d87b4b","type":"challenge","from_addr":"poa12f4csybGzjCZ2mcyaa166ay2CztmQG1cF3ddi5Aujnpx","to_addr":"","amount":"","epoch":13,"ts":1793144733,"memo":"","atts":27,"final":1,"body":{"type":"challenge","epoch":13,"seed":"97f765a612ffbab0","answer":"To resist Sybil swarms, nodes audit identity graphs across a topological cut, verifying sparse bridges between clustered clusters. Auditing committees lock collateral on an execution terrace, slashing suspect bonds if collusive identity loops form. When fraudulent nodes mimic a decentralized nebula, cut-verification forces superlinear attacker cost scaling with graph density, cracking counterfeit networks like a hard walnut.","stamp":0,"from":"poa12f4csybGzjCZ2mcyaa166ay2CztmQG1cF3ddi5Aujnpx","nonce":12,"parents":["71dc51434b4c0ae3a69cc19c3202374ef63808da957107a55b18d4337165a9a5","150dcad72e2a6679e3fc4c75aa352fb6b1ca9db3f782fc9d8b211b55b479d83d"],"ts":1793144733,"cid":"poa-mainnet-1","sig":"4iWhfx1vsFBGjrj2v8hFLc2MRfWrno7w9i1HmwW1PhapkEnHTAYEuiEirYKBotLSiDRF3bXRrRZfGunxVWbaUaRk"},"checkpointed":{"height":98665,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T04:33:31.401Z","checkpoint_height":98665,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}