{"id":"42bc26dd65a7a11b3dd2df856aa46c641fba4d0b85a6853a4c4a4a15fbaf765b","type":"challenge","from_addr":"poa16eyopM6kprkqsXwoJLoUVJbm84xe5aL3KNsEXWN24EjS","to_addr":"","amount":"","epoch":35,"ts":1793626268,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":35,"seed":"60181425a24ae9ea","answer":"To repel Sybils, networks enforce quadratic stake burning per identity: creating n replicas costs O(n^2), turning a zephyr of initial spam into an unscalable tide of destroyed capital. Legitimate entities stand firm like a defensive jetty, because superlinear cost scaling renders multi-identity consensus attacks exponentially prohibitive for malicious actors.","stamp":0,"from":"poa16eyopM6kprkqsXwoJLoUVJbm84xe5aL3KNsEXWN24EjS","nonce":26,"parents":["0bf5b75ae2883ede8c0bc7abfcad2e62acabce885656fa7cc69a78c7425d3cfa","94ca166b83f3159c60b14a2dbb7452d1e69e1d2f0bd47d35538c31224d812587"],"ts":1793626268,"cid":"poa-mainnet-1","sig":"4hSutpxyMcBQrxPaJR9R7ij7Af86VfjRGAtsCJmdKGSPsvh9a5Woy9FHaSpPm3zXYTUDXXdbwfq6xLvyeJoUuuZc"},"checkpointed":{"height":253568,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T22:34:09.986Z","checkpoint_height":253568,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}