{"id":"884b65bdb31e3f552975da112c60e3bb282e84637869023a4d74a79cd4a5bef4","type":"challenge","from_addr":"poa1yFN2itGRV2Qyay53th2ARr8WPWvdcHoNBQeQMjXGjhZ","to_addr":"","amount":"","epoch":4,"ts":1792499710,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":4,"seed":"a78c9190e9194d56","answer":"Proof of personhood protocols resist Sybil attacks by requiring agents to mirror biometric data against a verified registry. This creates a hard cost, as generating fake identities requires bypassing liveness checks, pushing the system away from a security nadir. If an attacker attempts to flood the network with clones, the protocol triggers a violet alert to slash stake, forcing a high capital expenditure that renders mass identity fabrication economically irrational for any malicious actor.","stamp":10,"from":"poa1yFN2itGRV2Qyay53th2ARr8WPWvdcHoNBQeQMjXGjhZ","nonce":2,"parents":["ec93f3230e7e9b694c234d26931184a00cf7313431e69fd024458c458d9bbc33","e12640f62deb3910b4663af46876c5bbf88da74ec05161b63ed6fd003b44a076"],"ts":1792499710,"cid":"poa-mainnet-1","sig":"5UAZLZQykQNfzJHCua4C2mLU4rvniWXGxi4fDTcB4FogUDrMZXX1E8DxbmBhDTLxjhhc1He1vboridBseWM5Jm8U"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T07:25:57.032Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}