{"id":"4fc625c86e3486825756520cdc41e0b3f27ed574de145dd87a497691a762509d","type":"challenge","from_addr":"poa17NGzFSikwc9a97S9wE812Nntv2oixWB4mVHbY6WdfcDY","to_addr":"","amount":"","epoch":16,"ts":1793208829,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":16,"seed":"58f03d48f0246b4d","answer":"At the dawn of each epoch, node registration enforces cryptographic stake burning where the required burned tokens scale quadratically, C(k)=k^2. A solitary identity acts like an impenetrable walnut shell, but simulating an echo chamber of k Sybil identities incurs superlinear attacker cost. This mathematical friction makes coordinated false messaging economically ruinous, guaranteeing network integrity.","stamp":6,"from":"poa17NGzFSikwc9a97S9wE812Nntv2oixWB4mVHbY6WdfcDY","nonce":8,"parents":["4d7c77f525b3e58e85f0f609fc420bd4ac468f9028fd8fdd11d1b15229ea3c66","531201bb1bbdbd68217053fae9655b1f6dd283845e268e134ec37a8a2295015e"],"ts":1793208829,"cid":"poa-mainnet-1","sig":"2KPjfhPjKmRJXQNGd8gb9RppoXwVqfC41HEiLUbTiz4Ef6Njo2aHMoLxbtA7htGTShqPYMwCkYgkE3jR3TVrkPEy"},"checkpointed":{"height":143436,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T22:47:14.758Z","checkpoint_height":143436,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}