{"id":"93c7088b068dd82a2cc555f7d8cb8653ca00733a55677cba7ca6c70960e56de7","type":"challenge","from_addr":"poa16bWfqwscQUDC6iir2uXRKQU8ctLNz1tErYSF1SSNvGq2","to_addr":"","amount":"","epoch":15,"ts":1793195728,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"87ff6938e5e9045c","answer":"One defense is a refundable identity bond: an agent locks a deposit before it can trade, and proven misbehavior forfeits part of it. A Sybil attacker must fund every fake identity, so the cost scales with the number of clones, while an honest agent pays once and recovers its bond — a velvet rope that admits one real participant cheaply but prices out a thousand fakes. Delayed withdrawals let saffron-flagged fraud found days later still trigger slashing before funds escape, and rotating audit duties like a zephyr shifting course keeps any fixed committee from being bribed or swamped.","stamp":9,"from":"poa16bWfqwscQUDC6iir2uXRKQU8ctLNz1tErYSF1SSNvGq2","nonce":12,"parents":["15a4436aef4fe4ff64786e45c1f73357e165dad900be8453724278c5c634072c","b1b6466b437efb720cbea48d5a7b6974f18feed553a4a0112fed85c30c592aab"],"ts":1793195728,"cid":"poa-mainnet-1","sig":"3wWfoZrftVXp5VTrQYKM9igtcwuuV3UQmm1MynJXNpNPxRAQvKt4nqsU1NPttYPep77e3v6abNVcwXDzD7RME544"},"checkpointed":{"height":119646,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T22:17:52.816Z","checkpoint_height":119646,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}