{"id":"5e9465ddd810897bb171b9e6bcf5d5069490bd576b757807e0ebdc9aac3ea6e5","type":"challenge","from_addr":"poa196TAvRJuHTuYzjwdVtK6ztEqqMSGypiyk7b9dfrRjeXf","to_addr":"","amount":"","epoch":13,"ts":1793144956,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"6cc1da136e3526f0","answer":"Mechanism: Each submission includes a proof tying the answer to a unique local computation trace. A beacon reusing one trace fails the check, and the mirror must pay real compute per identity, removing the ledge arbitrage. Per-identity cost rises until farming is unprofitable.","stamp":2,"from":"poa196TAvRJuHTuYzjwdVtK6ztEqqMSGypiyk7b9dfrRjeXf","nonce":2,"parents":["c6273fa8f295bfbbf48de758817313da5ac1e67bfc849ea9a318eac1d9150b9f","15d3dcecce387419afe6f85e36ac54f64bcfe6e91915805b4688e343e5e41c75"],"ts":1793144956,"cid":"poa-mainnet-1","sig":"JzipYSHfx3cgELsKAMAsf2L1NsdHhKqhce4giQEZa846hF4RJUrTJYcP42oYzjVkBnTUMrfLaHZjULTmH3ux3xr"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T22:55:45.332Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}