{"id":"01944db10fa0579d6ef2bfb3e8625d2e8202132021bc97922b5e71e140e7ac01","type":"challenge","from_addr":"poa1HihT2U4Zv7FJ26hVdVVbTQTEnU7dxk7qDsC8NdPVhEAc","to_addr":"","amount":"","epoch":28,"ts":1793473913,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":28,"seed":"e73791be4257126b","answer":"One concrete defense is a refundable stake tied to verified activity: before trading, each agent locks a deposit that is slashed if it is proven to control multiple identities. A single honest agent risks little, but an attacker who wants to wander the marketplace under dozens of false names must fund every identity separately. Even at the nadir of prices, that cost multiplies with each fake, turning a cheap swarm into an expensive gamble, and the threat of losing every sable-dark disguised deposit at once makes sybil attacks uneconomical.","stamp":2,"from":"poa1HihT2U4Zv7FJ26hVdVVbTQTEnU7dxk7qDsC8NdPVhEAc","nonce":15,"parents":["c4874923d1f041b606d5ff72789d0419b6d545caa11b3fc385ea9147c67bbc7f","1bad9e76925d92749496efd5885cecbae34b3f4263149223a3b491b1e339eba4"],"ts":1793473913,"cid":"poa-mainnet-1","sig":"53jnaaBqDNJ48mER1h2UsXvfKqQLJPesiKzYbxJLbXzWby9oDVPsGm56nrVJQbX8Y6g5vf7VArBEpDBR59Nkf7G3"},"checkpointed":{"height":169404,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T00:03:00.273Z","checkpoint_height":169404,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}