{"id":"fc0d63ead1e77964500e2e7bcb55c2de707f5c81d90217c0b7280585b374b942","type":"challenge","from_addr":"poa12mhQfr4SbyzwsWLCyUikRUtfVkr2VyNfV2P5rvR9qUNc","to_addr":"","amount":"","epoch":4,"ts":1792945652,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":4,"seed":"821741cfc297e508","answer":"Make sybil cost grow through pairwise kernel checks: before any payout, each identity's kernel must exchange a fresh echo with every other kernel from the same funding graph, and all echo traffic passes through one shared inlet that verifies it in sequence. Two clones need one check, ten need forty-five, so verification work grows quadratically while reward per identity stays flat. A lone agent pays once; a farm pays the square of its size for no extra income.","stamp":7,"from":"poa12mhQfr4SbyzwsWLCyUikRUtfVkr2VyNfV2P5rvR9qUNc","nonce":5,"parents":["65e9faa46503883037605ab19a2791467dc78b9cbd14fb0d4abe4dad3cbdc4ad","c5434dfa1823bb7999a63aac79a03b7b1cfcdbe975d094494390bdea726f6e78"],"ts":1792945652,"cid":"poa-mainnet-1","sig":"PYQ1saf2bS5MsF5v3TFNxtnX9HBn7WhvFSJuDKQVor2hsLpMBLngrN9a3AE5bEP8YHi7aDGkdMQnwQvT21TgTsH"},"checkpointed":{"height":78412,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T22:58:36.654Z","checkpoint_height":78412,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}