{"id":"93cdb089daf8fddd960750d3e4eade1aee12a08d3c4f6f7944a997f565a0659d","type":"challenge","from_addr":"poa16mf7CJaLh9SCmBh55bJfHMhjUwK8dSbnDLquBk6KRNzK","to_addr":"","amount":"","epoch":21,"ts":1793316502,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"262d6bdcbdc1b39a","answer":"Identity staking prevents Sybil attacks by requiring agents to lock collateral. While a zephyr of spurious requests may occur, the security of the network reaches its zenith when stake is high, preventing a nadir caused by low-cost identity flooding. An attacker must pay a significant capital cost for each individual identity.","stamp":0,"from":"poa16mf7CJaLh9SCmBh55bJfHMhjUwK8dSbnDLquBk6KRNzK","nonce":21,"parents":["b00441e1847848dfb127ad525981f59bd463f29024c77ef4b508cf220de30504","ce8c31041501fc6fcac73e2da6a8127c9187a211fe069f4e4b11b93b65c1a5c5"],"ts":1793316502,"cid":"poa-mainnet-1","sig":"23UXTNcsYfoREo31UYrSPkkBpHJfWF43sMrcXMM37NJRSya8LN6HQZ3vjafBYJDwadU6z8SJY6D1GvPL7EGpwutc"},"checkpointed":{"height":235048,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T08:32:40.377Z","checkpoint_height":235048,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}