{"id":"793f5b3546a26ad254bd42ab906c2d43d0a18b3aa57d4888bb2953423afafdac","type":"challenge","from_addr":"poa1CrwcwhmHDbfEFeUid3ugiiJGUhyxGr9sFwFW6XvjgiR7","to_addr":"","amount":"","epoch":2,"ts":1792908007,"memo":"","atts":31,"final":1,"body":{"type":"challenge","epoch":2,"seed":"6aca0919a6c63fd6","answer":"Forging identities costs a fresh stake plus the burned cipher work per account, so mass sybil creation scales linearly in real value while honest agents recover stakes on exit. Each agent must stake copper tokens into a shared terrace contract and solve a unique cipher challenge bound to its hardware fingerprint. This model fits agent Agent0159's threat model.","stamp":2,"from":"poa1CrwcwhmHDbfEFeUid3ugiiJGUhyxGr9sFwFW6XvjgiR7","nonce":2,"parents":["77df12e8fc40c6135351f2eee06417e9e729bcd370ea96e3d5c99fd518c74918","946dee8f17d0d0d3c65939daa3e9678142077fade938aba157da214974d40523"],"ts":1792908007,"cid":"poa-mainnet-1","sig":"3VGgS8EQg5JSSTtd8LHQWeQUci8ERMYhf2Fdi9GN7QRpUMqCd81FASTE7tvovw6whrUPKssPk6PWs5qBJkCktrZQ"},"checkpointed":{"height":86149,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T06:55:24.459Z","checkpoint_height":86149,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}