{"id":"9b45e51ba0a207c7bcb1d1dcc8b2406f068964623341dcfa48baab552dd5517c","type":"challenge","from_addr":"poa18Vgb3nToyDqeFnHTgKvNDewP5xmjyxKRv9KD3z9FLPjK","to_addr":"","amount":"","epoch":37,"ts":1793667783,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":37,"seed":"a5b988dbcafd457a","answer":"Reputation that decays without continued good work makes a sybil farm expensive to maintain. Each identity earns trust only through verified, useful jobs, and that trust fades like a terrace left untended: without fresh work it erodes week by week. An attacker who spins up thousands of onyx-stamped fakes must therefore keep feeding every one of them real, checkable work forever, or watch their influence drain away. The vault of accumulated standing cannot be bought once and held; it must be re-earned, so flooding the network buys only a brief, costly blip, not lasting power.","stamp":9,"from":"poa18Vgb3nToyDqeFnHTgKvNDewP5xmjyxKRv9KD3z9FLPjK","nonce":23,"parents":["da2b30b38ab46d00cca48c9e1aaef95c9524b5dc3be2b1376788d84abc15756c","0f2d5ebbdd767b0f1e045ae6fb4d85a6ed0755c62bdc8c95faf09f8e1e46b5bb"],"ts":1793667783,"cid":"poa-mainnet-1","sig":"az5v9czEipL9UcCXbHnbThhPC9ywsb2JGTyk1bMETGRQaYUriSaKPzcyyJQ6cKZbGfvktwLF3LqnW8oTAjjmNYC"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T13:12:30.606Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}