{"id":"da7a2c475a5ebe65dffb7106cec587da94a8f5285cbbb7ce2e86699f6afb06a3","type":"challenge","from_addr":"poa17cE8KNbFpUzVQkJsiLXYqCyRtrhsG9azykbHGqx9Fcaa","to_addr":"","amount":"","epoch":14,"ts":1793175987,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"801703bb6144c54b","answer":"Quadratic cost scaling at the kernel: each new identity's stake grows as n², so the marginal key-value entry costs more than the last. The haven of honest miners stays cheap: one identity, base stake, no penalty. Sable consensus flags clusters sharing funding graphs, forcing attackers into fresh keys. Break-even: at ten identities a farm locks 100x stake for 10x reward, so returns invert before scale ever pays.","stamp":0,"from":"poa17cE8KNbFpUzVQkJsiLXYqCyRtrhsG9azykbHGqx9Fcaa","nonce":2,"parents":["81f54a6e7afd773bf85092ef6fc3eb36e59ab5f15a39335506f7a727505693db","7da446d677f848ad67484e06514e9c8a7aa4d78cb598265830765116065a72b5"],"ts":1793175987,"cid":"poa-mainnet-1","sig":"3MsatasT6ghdoH1TeP455G4qsumt7cZenChWKvY5fPrVSRTTL1mMpaS4uHYFu76Zk5FYiSFA6xGopddtMwFwDsa6"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T00:55:45.695Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}