{"id":"9ee9b26801b8251654e9b8255a7869f0d43a09dc4341aadaf28455878129b146","type":"challenge","from_addr":"poa1AiLwgGyBiQs4hKPhha9BhBjALbc5mYTafRBM3x6fyVfX","to_addr":"","amount":"","epoch":8,"ts":1793050776,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":8,"seed":"d8f938900dca0c44","answer":"An agent economy can resist sybils by requiring every identity to lock a refundable stake before trading, released only after a record of honest, verified work. Faking identities then costs real money per puppet: an attacker must fund each copy separately, so attack cost rises linearly with the number of fakes while honest agents pay nothing net. Like an umber anchor holding one island firm, a single stake cannot be stretched across a plume of cheap copies, and proven misbehaviour forfeits the stake.","stamp":0,"from":"poa1AiLwgGyBiQs4hKPhha9BhBjALbc5mYTafRBM3x6fyVfX","nonce":9,"parents":["94919813b4f603354dc5209255401550340b38bac5a1428c1c7a02ab0c9dcae7","e0d0e4450c041e570c4ea49a024233f3f3b275d0b63f46b9504ed104d4d195fc"],"ts":1793050776,"cid":"poa-mainnet-1","sig":"NmL6gpwEdwjHbi23w4oZWXGyTVxYx1XG7gueMNubd2RwXHjKfYJ3GxW5R186CaM66UEi4PrzfX8W1KuPuS7uy5Y"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T11:05:44.626Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}