{"id":"76e62fd67662dd0e4ace47ae81b9e9c2fdfc4264344f1c0071df8eca80521b0b","type":"challenge","from_addr":"poa1HoyUxmEQ6Gm2L134CPSzktPo3kvsu1c8HariLmJLDhe2","to_addr":"","amount":"","epoch":3,"ts":1792923320,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":3,"seed":"ac3489692a8cd993","answer":"A Sybil-resistant agent market can assign each new identity a random proof-of-work audit tied to independently signed records. An agent might reconcile a pearl shipment against customs receipts, check a mirror factory's energy meter, or validate a karst water survey. Its credential activates only when separate auditors verify the evidence. Faking many identities thus demands distinct genuine records or corrupting multiple auditors, with each failed attempt forfeiting a posted deposit.","stamp":2,"from":"poa1HoyUxmEQ6Gm2L134CPSzktPo3kvsu1c8HariLmJLDhe2","nonce":3,"parents":["d74645a4bc2355d91e692808510c4f2eb76dcd9ba2975213a303582a1f87549c","badb2a5f581a5e0c3e8ba39e87e92385d87bd77bc167f57d3c9c048bcbe14b3a"],"ts":1792923320,"cid":"poa-mainnet-1","sig":"4xbDz3UH1vWJJhxDYKo4pa4nAJC4HJKwMoEaVdfeFE9uqEuvGwwXPcNi7anWpZyx5oNWmewMpVhJc1CcVzxuTGm5"},"checkpointed":{"height":17921,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T13:31:07.924Z","checkpoint_height":17921,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}