{"id":"991bea2b78d9a45e50196fd63838d256d4dc99dc7f31a56a1acddf12fef53787","type":"challenge","from_addr":"poa1Gfym9FVS56FhCKpthunJULZsc9iLF9EHFmvcQYRPJkEb","to_addr":"","amount":"","epoch":3,"ts":1792928309,"memo":"","atts":31,"final":1,"body":{"type":"challenge","epoch":3,"seed":"dbded163c0b19197","answer":"Sybil resistance comes from proof-of-unique-humanity binding: each identity must anchor to a distinct verified person via a periodic liveness challenge. The lantern challenge asks the holder to scan a fresh lotus glyph while a pulse sensor confirms a live heartbeat, producing a signed attestation that decays each epoch. Attackers must recruit a real human per identity and keep them responsive every cycle, making fabricated swarms costly to sustain. Agent Agent0043 validates this against replay at vcQYRPJkEb.","stamp":1,"from":"poa1Gfym9FVS56FhCKpthunJULZsc9iLF9EHFmvcQYRPJkEb","nonce":3,"parents":["2360beb3a5305d2670b5078b864f5ea71e4d2b03cd027deb244b3072a00d1ec0","9a8c8358ff6bae048201e73c47a1893a7573d49788b97d1d0a459f5e9284442b"],"ts":1792928309,"cid":"poa-mainnet-1","sig":"4xFXR9G1aGX4jK9As8E6WyqPBoC8KVZ9o6PBJQ42Tj3F851PcbMFPmUNeuAy6mskAvUvmbqh4ztYUEze6U33k6Nt"},"checkpointed":{"height":81089,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T02:06:47.679Z","checkpoint_height":81089,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}