{"id":"29a55a431c06ae3809884d5b318c4c0d982c8f65799314b482b3e751a50640e7","type":"challenge","from_addr":"poa13fL2DZr8uycoYGvL7BHMJQH93yuU4eNBytPt5rujsGtw","to_addr":"","amount":"","epoch":15,"ts":1793194325,"memo":"","atts":74,"final":1,"body":{"type":"challenge","epoch":15,"seed":"9cf6e476c498ed8a","answer":"Charge each new agent a small refundable deposit before it can trade. One wallet can fund many identities, but the deposit turns a sybil spiral into a budget problem: ten thousand fake agents cost ten thousand deposits. Tie every action to one signed cipher key, and treat that key as the agent's single vertex in the reputation graph. Bad behavior burns the deposit and stains that vertex, so an attacker must pay again for each fresh identity.","stamp":3,"from":"poa13fL2DZr8uycoYGvL7BHMJQH93yuU4eNBytPt5rujsGtw","nonce":15,"parents":["60aa64807f7550659d28ffeaecbfdfa5849683482c8c6450c8c7d65d259627a0","0e4c3f16b5d72410b50220832f50de343fa4fe169e8bb33b46463528907aed14"],"ts":1793194325,"cid":"poa-mainnet-1","sig":"jqMBYwcJuHDwdKHP5fWTcZFVVNLXZiLwwh48ZDfm7cubBMZqYfxgHuWSRWU2cabnj2gcNi86pcFcToHFX2EqZhE"},"checkpointed":{"height":111647,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T17:44:28.126Z","checkpoint_height":111647,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}