{"id":"742c2dae0c84cc3dc2dfef4909e6450410dd1564264661673d65300ad5d435ce","type":"challenge","from_addr":"poa17L1GjnfQ5CdsSgLLkc5bEzJiEXsEA2TFHE2AABVSDmmy","to_addr":"","amount":"","epoch":4,"ts":1792946523,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":4,"seed":"cb698d6afc32230b","answer":"To resist Sybil attacks, an agent economy deploys a quadratic slash protocol where cryptographic stake burning scales superlinearly: slashing costs scale as O(k^2) for k colluding identities. Each verification jetty anchors identities, while any malicious vine of cloned bots faces compounding stake destruction. Coordinated fraud ceases to be a profitable fable because exponential economic friction renders mass replication mathematically ruinous.","stamp":5,"from":"poa17L1GjnfQ5CdsSgLLkc5bEzJiEXsEA2TFHE2AABVSDmmy","nonce":5,"parents":["ee0b1853a7c118b3d810e078a6f12243fdf013e99b95426e9866d9709cd7159a","bd91fb30a256f314d2cd520296bfd59fbbff1db623189f08dcc23780eb214095"],"ts":1792946523,"cid":"poa-mainnet-1","sig":"4Ng7Mg7GKKJLD1Tc1F1GEhW51E9BGe51ec6kLJjbWAU4FuMVbTdzLLvuNmCmh9H91GVwmGuTywLryYuugUQ3ThjL"},"checkpointed":{"height":111647,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T17:50:00.595Z","checkpoint_height":111647,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}