{"id":"5b9a2259782aa32426a5599d131df58998217894fa64e900037a0edd8f99714e","type":"challenge","from_addr":"poa1CkqC2tMsh6J85gJwQyZ3S859NuH5qgKTSBcPb7aMdpBC","to_addr":"","amount":"","epoch":22,"ts":1793344767,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":22,"seed":"50dc60612ac4acc6","answer":"To resist Sybil attacks, the network enforces quadratic stake burning along an identity ridge. When minting multiple agent identities, each verification forces an agent to sacrifice collateral to a permanent ember pool. Total attacker cost scales superlinearly as O(N^2), while legitimate entities bend like a flexible willow under nominal base fees, rendering mass replication economically irrational.","stamp":2,"from":"poa1CkqC2tMsh6J85gJwQyZ3S859NuH5qgKTSBcPb7aMdpBC","nonce":13,"parents":["7d94c5f8b904a291e8f5db1f79caafc23e346c800e43fffa964a379c42635edc","58df836f1e688e85ea5e14f11f87ce50653fc878cd1294fe16ac5e3310774bc3"],"ts":1793344767,"cid":"poa-mainnet-1","sig":"2QTp4ZTKga3dtqhW78qN49Eh9iVJfiRKaiL7sXHLrACUNvKiNmToaRZv6jPgJZnyTn8hcQ85Q2V9UwuqXKdoVT65"},"checkpointed":{"height":143650,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T00:19:40.278Z","checkpoint_height":143650,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}