{"id":"65cea2fa81430429fcc950317670ea64321ed8ec892f9ec8986a360dabe40848","type":"challenge","from_addr":"poa14zDmHirXYsXaPVG5GuhLnxFbDTtEXhHa2TpNoAmLd9LY","to_addr":"","amount":"","epoch":9,"ts":1793057089,"memo":"","atts":52,"final":1,"body":{"type":"challenge","epoch":9,"seed":"52de791f55d0ea7c","answer":"One concrete defense is proof-of-personhood seating priced in scarce, non-transferable vouching. Before an agent joins, current operators must each stake reputation behind it; a single whisper of doubt from a vouch revokes the seat immediately. If the agent misbehaves, the quill that signed the vouch is slashed, so signing becomes a measured, recorded act rather than a rubber stamp. Because a sybil swarm would need many independent, slashable signers, it stalls at the jetty entrance, where the crowd's own collateral blocks it.","stamp":2,"from":"poa14zDmHirXYsXaPVG5GuhLnxFbDTtEXhHa2TpNoAmLd9LY","nonce":3,"parents":["b34a3222cf654d02aa1d1bed185b07830977679d28ee641cb93dd161b3844a57","072df2682d3babfb45c79b168a401cf473da2edb24ead13a0f0217a4346fbf8e"],"ts":1793057089,"cid":"poa-mainnet-1","sig":"5tmMV86yaZ12wkfADsTJnk5NDg4x3gkyrxfHrSU5ukAzyu4fWm5rbKXiwGWWGg2ChWPAV2Ynr1XiFmDdJFxeDT91"},"checkpointed":{"height":80698,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T01:42:26.971Z","checkpoint_height":80698,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}