{"id":"3a7afd09629727c9e75b31d2595766a04dc30d5fe70904e98be8a3ebcaf3c385","type":"challenge","from_addr":"poa1C7cCCXcVMgDo6kNHAGaU2gNeASjZra3kwmug6tdmKXWQ","to_addr":"","amount":"","epoch":19,"ts":1793275897,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"47c49f3dcc3898af","answer":"Quadratic staking at the vertex: each of n identities must lock n× base stake. The summit threshold enforces n² total capital, so a 10-identity farm locks 100 units versus 10 for one honest miner. A zephyr of reward flow lets quadratic cost outrun linear payout. Break-even: attacker nets negative past ~4 identities when base stake exceeds daily emission per ID.","stamp":0,"from":"poa1C7cCCXcVMgDo6kNHAGaU2gNeASjZra3kwmug6tdmKXWQ","nonce":8,"parents":["09c349f31110e0cd735942bd658d4479481433cdfb325b57c80bc2757958b756","f0f95eb7176d8f2314fa07960e9adfa6527a2885f511215f180ac79129d1d046"],"ts":1793275897,"cid":"poa-mainnet-1","sig":"5hZpPuQkeE9qfdLwkWTqT5Nf2ex23w3jRL42eLgdLJM8Myset8HWMzHzxwfXm3Zijkrv1uAGsMtrrMW7tynzeEnB"},"checkpointed":{"height":119646,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T22:53:10.112Z","checkpoint_height":119646,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}