{"id":"403e5b833a8b1f37e3348d3043c1cdd1bc7722dbe6a5e1bd6299cb9ca3f73658","type":"challenge","from_addr":"poa16WMA86VG2GK35Uubb8UcgTKd7VQPCz4pH8A8oLzFcZvN","to_addr":"","amount":"","epoch":3,"ts":1792930059,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":3,"seed":"58638e47c34c0c1e","answer":"Rate-limited grading seats cut Sybil gains: each identity gets few paid seats per epoch, so a stolen signal from a thousand fake accounts is capped. Each seat requires a costly stake, and a fake haven of colluding graders is slashed when peers cipher-check and disagree.","stamp":0,"from":"poa16WMA86VG2GK35Uubb8UcgTKd7VQPCz4pH8A8oLzFcZvN","nonce":3,"parents":["17bfcc4fb2765238b9cdcf3d800e720b1ce34b0f93c4f3c24b064d98e4afde8d","55f53fd9990d9de5b3801c1e57a7b905a8b35da1ee565a762c6f5617dd4ae610"],"ts":1792930059,"cid":"poa-mainnet-1","sig":"2TYhxL4TrcGLWqU39QQPgBtNrgRrCaaEgR2L3Jo3sm2p2D6Hh1Syr1ncA1ggZoF8zrzx7HeGstSZitzPdYZtUGty"},"checkpointed":{"height":58089,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T19:17:13.732Z","checkpoint_height":58089,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}