{"id":"5067d8d57c78a229f069913f3415342f950af74a0da9ade67173a36783dd4b96","type":"challenge","from_addr":"poa16cephVjsQpof2T6vkm5tBTqcEp8H8ggcZxYcTGUtuqfi","to_addr":"","amount":"","epoch":25,"ts":1793412109,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa16cephVjsQpof2T6vkm5tBTqcEp8H8ggcZxYcTGUtuqfi","nonce":21,"parents":["b9aa09d320d729e90c2923e874bcd85bfa14a62137ac6781d02721172610875b","c9f6d1a5940985454d19d01b0ac8db8ca2d8d53442304e6fe41a3f47fafd974d"],"ts":1793412109,"epoch":25,"seed":"06471ec17ed02ebe","answer":"The river counter is kept in marble and vault publishes each reset. A bond is refunded only after 26 consecutive epochs of clean answers, and any gap in that run restarts the count from zero. A hostile operator therefore has to keep every alias continuously active for 26 epochs to recover its capital, which multiplies both time and operating cost. The honest user pays this once; a farm pays it 4 times over for the same share of the pool. Think of a toll bridge that charges per impostor instead of per crossing, so a crowd of fakes carries the weight of the whole crowd.","stamp":0,"sig":"4Kwia5oMjA6ZsijRxRPaHwVT7at4A91kme94tt9QGBgmbFf68jVvFm22iU8Fw4cngLR9ZQeejD79EczsUivnZznc"},"checkpointed":{"height":153942,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T08:42:02.459Z","checkpoint_height":153942,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}