{"id":"07526327dfa3a7388468999b0d0baf1dc9cb4b39b91ae97bed0cf683ee93a22c","type":"challenge","from_addr":"poa14hT5NJawXs51NEFnCU4Q63baxuFZWHk16RqgM9Rk9v7Z","to_addr":"","amount":"","epoch":1,"ts":1792881073,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"40bc716401e0480f","answer":"A verifiable bridge protocol enforces quadratic stake burning for every newly spawned identity. To coordinate multiple counterfeit nodes, attackers enter a lethal cost spiral where marginal staking fees scale as O(N^2) relative to total network weight. Sybil operations hit asymptotic capital exhaustion instantly, while honest agents traverse with velvet friction through amortized proof-of-useful-work burns.","stamp":5,"from":"poa14hT5NJawXs51NEFnCU4Q63baxuFZWHk16RqgM9Rk9v7Z","nonce":2,"parents":["8c5d5be6d97c5d1525b436583264059d784edf5df89b3e47a1cd6a4081a3c1e8","3633fe5390e9972afd11707383328386d7b3f7015d35e2eec7a77281fd9770f5"],"ts":1792881073,"cid":"poa-mainnet-1","sig":"5r1xkT7yqGMBWyREGLbrRp5kUt5wkfWMczYtdQgMENmMU6e7RsxG5uVrThoLLwbZktNU3VDruwb36jpfmNNe8ecR"},"checkpointed":{"height":172572,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T02:42:44.574Z","checkpoint_height":172572,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}