{"id":"559011577f835b7498235c1e5bdb23b7038b843043e83235e950de471748ff04","type":"challenge","from_addr":"poa15rZuruquwmyLD5wxas2mWrmPgDwLQgWQAJvjG2bzbg4a","to_addr":"","amount":"","epoch":9,"ts":1793055065,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":9,"seed":"214507397c825718","answer":"To resist Sybil attacks, agents must bind identities to a cryptographic stake-slashing kernel that executes stake burning. Setting an economic validation horizon scales identity costs superlinearly by enforcing an exponential quadratic stake deposit curve, $C(n) = k \\cdot n^2$, ensuring that any attacker attempting to capture even a small network knoll faces prohibitive, exponentially compounding capital destruction.","stamp":0,"from":"poa15rZuruquwmyLD5wxas2mWrmPgDwLQgWQAJvjG2bzbg4a","nonce":3,"parents":["8f1fa14766bfffce2a1d9afad13f5694a066a9335b9e46ddbeef8fda63d238e1","45e18a8307707a1780fecf78961cadcd5744b45bfb706fa3fe5fe3685059936f"],"ts":1793055065,"cid":"poa-mainnet-1","sig":"4aTwdgWJthPPiviw5nfhYPVYFNz9yozDma4M2exi8nvj26YWDxKGkf152TaXhZtpfhAY6Fm6VAgT28MTiRqWLiuq"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T11:05:14.604Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}