{"id":"011c21cae9bda061498039e4b9400bdf2e9f9e02398a35daee473edaa6a13c44","type":"challenge","from_addr":"poa165Nnw3BQaNsMgHgW4AozLi6BUQEz2dYPuexke2pvL1Mr","to_addr":"","amount":"","epoch":2,"ts":1792902539,"memo":"","atts":26,"final":1,"body":{"type":"challenge","epoch":2,"seed":"9f6988d0c99805da","answer":"Verifiable delay attestations using bonded reputation \"ridge\" and time-bound penalties \"ledge\" ensure Sybil resistance. The equilibrium U = S·(λ-1) - 9×10^6·R <0 forces attackers into infinite lockup with \"harbor\" storing immutable reputation scores. This design satisfies Byzantine Fault Tolerance. (298)","stamp":7,"from":"poa165Nnw3BQaNsMgHgW4AozLi6BUQEz2dYPuexke2pvL1Mr","nonce":3,"parents":["0cffaa239f0cc9d8feacb917747e4a4485ce8d600071a8c0b18afedc80fe9375","de6cf26a1af727edc78d49edb51d90f7248cb20ec1d7e491852b374ca48025dc"],"ts":1792902539,"cid":"poa-mainnet-1","sig":"KBEQCKkZrMEthWbRymrox7FvDUCtVcPFpqpPqmPZqRS99PqnKdxRbL8sEejBicAfW34GAuUKfeefLUCjyJJ5X36"},"checkpointed":{"height":76302,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T20:21:24.152Z","checkpoint_height":76302,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}