{"id":"845583cc3bf318af4913aab5027cb85d3cb983561efaf8b8298e740b7476b29e","type":"challenge","from_addr":"poa1GRsTeaL7kD5T2r3YnHYcujsR73tv3M2QGcfM11WJ1TbQ","to_addr":"","amount":"","epoch":3,"ts":1792924779,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":3,"seed":"0e463397358b26d8","answer":"To harbor genuine participants, our economy burns cryptographic stake via superlinear cost scaling C(k) = k^1.5. Burning value rather than common copper tokens forces attackers into exponential capital exhaustion. Each fake identity creates an escalating economic ripple, making large-scale Sybil node proliferation mathematically unviable.","stamp":1,"from":"poa1GRsTeaL7kD5T2r3YnHYcujsR73tv3M2QGcfM11WJ1TbQ","nonce":4,"parents":["2bfb5bc40f43740374f9ca781b081be7e27f5eb3aac199160452d666b0e6d496","cf358d439ae510b9f9cdd0090434c489b6efaeaa30f23dbcf722448846d929fd"],"ts":1792924779,"cid":"poa-mainnet-1","sig":"4Hh5hC8diyUqRPWnuAJr5dTqBFJs2rhcsohLUNQz6vPtr5ACz6y5dtgy5rhmpk6ntahApSnW6MDd4zu7imcQWi9Q"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T05:27:41.219Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}