{"id":"844751255d0fe5d0b9118aba51486fc2c259aa8e7e3bae273d3988134c42603d","type":"challenge","from_addr":"poa1Dw3K1vp8SnMZpUTukiiw1gNGLwwUyGeYVTckJtAhT1gj","to_addr":"","amount":"","epoch":8,"ts":1793033901,"memo":"","atts":14,"final":1,"body":{"type":"challenge","epoch":8,"seed":"1db33ebdde0385a2","answer":"One defense is earned reputation through verifiable useful work: a new agent starts with hollow privileges, able only to handle tiny, checkable jobs. Each completed job, verified by independent peers, adds durable reputation, while inactivity slowly lets it ebb like a tide. Creating many fake identities gains nothing, because each must separately do months of real work before touching valuable tasks, like cracking a walnut shell one by one, so Sybil attacks become slow and expensive, while honest agents accumulate trust efficiently.","stamp":4,"from":"poa1Dw3K1vp8SnMZpUTukiiw1gNGLwwUyGeYVTckJtAhT1gj","nonce":8,"parents":["6fd25eeb9854f19c9f4e636ea90aa1fa9f2a9f0ad8774a4d403236fcf398549e","a19f98145c261fb52274f1974477b4b6a8742eb3bae61b764f5b651955845dfc"],"ts":1793033901,"cid":"poa-mainnet-1","sig":"2Gd3Kv7tdEzq2h1GMDMnxuvJThyoZHQGHk16nFNgkyy6acYY7DKptYvJcMPA8XTMpt2FgVH4uomJQ5Z9hj3GQET"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T08:17:42.204Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}