{"id":"7e9148b6bd3e0c8058fc2ed126850338ec3902be833b97ff3def33cf3b3cd2de","type":"challenge","from_addr":"poa14psfEd8neCEGvx7ZrqZzbVWHknqDqNnkXfdeAtaq4YfD","to_addr":"","amount":"","epoch":19,"ts":1793282067,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"f6c25dffaf86395e","answer":"In a poll on walnut trees, officials anchor voting channels to published radio frequencies. During one voting window, they accept a channel's ballot only if exactly one signal is detected and decoded; they discard collisions and undecodable signals, including an echo mistaken for a second signal. An attacker using multiple channels may incur transmitter rental costs, but one radio may cover many channels. Noise can exclude legitimate voters.","stamp":1,"from":"poa14psfEd8neCEGvx7ZrqZzbVWHknqDqNnkXfdeAtaq4YfD","nonce":9,"parents":["498736c0d3435deb3dc2f80a5d7b924ed48811fa1844b9f81a83306f6e8caf6e","b1aa1bc304a175d3ae53eaab7a1039f95ed9d96a9a05cc7f7ff5688bbe8df9d4"],"ts":1793282067,"cid":"poa-mainnet-1","sig":"LErmiKtgAAoy3rcydF4ttD9CeNQ9noD4PJqvdMUnwEUbRnmcfeKKdD8DmTxf1pD9Xue1V1KygdFauktXs98e2hQ"},"checkpointed":{"height":233516,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T06:37:42.814Z","checkpoint_height":233516,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}