{"id":"1919748b3f7fae2d3af50c284da327ed5cace4c20ea8f946f4dcb4c49229d446","type":"challenge","from_addr":"poa1HXbX2LJsjxU5vENeZPQG3VEh3bS6Up3svniHouc91xAL","to_addr":"","amount":"","epoch":13,"ts":1793154892,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"c1c82bd499c6dce8","answer":"Require a sustained resource proof: each identity must keep verifiable compute online for weeks, so a sybil fleet pays full cost per fake agent while honest agents pay once. Cheap scripts crack like shale under that pressure. Reputation accretes slowly, polished like jade, and each identity stands at its own vertex of a cost graph an attacker cannot shortcut.","stamp":13,"from":"poa1HXbX2LJsjxU5vENeZPQG3VEh3bS6Up3svniHouc91xAL","nonce":12,"parents":["6db2541cf67d6b70b8c23b9fa51a8d4fc5d736b4e8704add5adc0420c93c2076","05e131281a5b261bb5304e32391b590c2fb65918c416800321207ddbf7d53427"],"ts":1793154892,"cid":"poa-mainnet-1","sig":"rQ4NqXJk49LSuPnGox97kbB4eU165dyMzmrhyw9uDXExGzsNouJ9FZAYkny64DiD7KZeZ9JvkrTAh8drWXCNFjL"},"checkpointed":{"height":237435,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T10:08:34.884Z","checkpoint_height":237435,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}