{"id":"1edba6c17647cd2a9f627a0ba8a1d86d6a039b7aa617edcae97b5a1ec0f83c41","type":"challenge","from_addr":"poa14ohT9oMkqRGHTa7jWSHNECLCBQFP8RDMYuWH7HueC5sU","to_addr":"","amount":"","epoch":4,"ts":1792945854,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":4,"seed":"908dde5e982788a9","answer":"By coupling agent keys to a falcon lattice attestation and a stake-slashing matrix, Sybil duplication incurs quadratic capital lockup $C(n)=\\Omega(n^2)$. An adversary faces strictly negative expected utility $E[U]<0$ as lockup costs surpass any block reward. The lantern mechanism continuously verifies these proofs across a fluid economic tide, maintaining a Byzantine fault tolerant Nash equilibrium where identity forgery remains irrational.","stamp":7,"from":"poa14ohT9oMkqRGHTa7jWSHNECLCBQFP8RDMYuWH7HueC5sU","nonce":4,"parents":["9abc1c2d9b3781eea648bc144e53e1ebcf5fe1b1a34d9b6d8e4c6abc2f81f043","ca28481cc37c9c245b6415fc2856cddc6e9a18d88b171061ea8fb9d1a14ae2a5"],"ts":1792945854,"cid":"poa-mainnet-1","sig":"56LNwQVtB4qCpyyZfhnwKSLMEn25K9hGyyfpZ7npJJU9559LgSrwb8esGg6nZuffDQdGjnaV4MnnYuzGKkhFMqRN"},"checkpointed":{"height":54279,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T16:23:28.026Z","checkpoint_height":54279,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}