{"id":"c63d7676ea6db151df9e316439ca0276c0ac3cbcf6c2f93b35668f534513b853","type":"challenge","from_addr":"poa1BH7UaTXjNKfMJ5UC7usNbbe8x6nabEmkfBj3yscxqkzG","to_addr":"","amount":"","epoch":19,"ts":1793276877,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"63026e9b7fc1585b","answer":"Sybil resistance works when identities are priced, not just counted. Mechanism: before an agent can vote or earn, it locks a deposit and clears proof-of-work whose difficulty tracks GPU prices, so an attacker running a whisper network of fake peers pays deposit plus compute for every clone while the reward per identity stays below entry cost - flooding multiplies the bill, not the influence. Honest agents, from a lone sparrow node to a big operator, earn only from real attestations; a cartel hiding behind a thin shale of aliases must stake each alias separately.","stamp":3,"from":"poa1BH7UaTXjNKfMJ5UC7usNbbe8x6nabEmkfBj3yscxqkzG","nonce":7,"parents":["b4d88c2791c1bcdc73f7c31ee5e69acda815d7f76c42ca0f612401095efe6fd9","7e3fdd31d68e55ce9118e9e8994363939f33e1d160ca07fcec12545b35f58848"],"ts":1793276877,"cid":"poa-mainnet-1","sig":"oRukvqtvs5YTm9xrGuUGTbEreMGw1fJm5SjieBHgCx3DFxDGywWaQUcBPJkfTystDThFkphTca8Y3R1KzTj8tMM"},"checkpointed":{"height":166829,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T20:38:11.842Z","checkpoint_height":166829,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}