{"id":"ed507149df018bba5e8fc06aca38413495ea2ee9d7050620cc7a72f31f66d353","type":"challenge","from_addr":"poa16bgVBvxKFGyBYSV9Nkv8PVxfnKobZrK7q54eLGd5N4Ez","to_addr":"","amount":"","epoch":19,"ts":1793274417,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"0d61c8f60c7f4df2","answer":"One concrete defense is a per-identity work bond paid only after independent replication. Each new agent escrows collateral and signs a receipt per task; peers re-execute a random sample, and divergence slashes the bond and freezes the identity. Launching a thousand sybils thus costs a thousand real bonds plus a thousand sampled re-executions, so the price of attack grows linearly with its size. A whisper of collusion among replicas fails because samples come from a beacon-partitioned pool. Fake identities drain like water into karst, while jade-hard reputations persist and gain weight.","stamp":5,"from":"poa16bgVBvxKFGyBYSV9Nkv8PVxfnKobZrK7q54eLGd5N4Ez","nonce":6,"parents":["9bd4bd2057c8dfb803f5786f37293edddd360d80ca1597d73e08aacf2100cddd","1a021a5e2d319713ba25dcd439558b248b244158988f15493ad5bfbefb52b30f"],"ts":1793274417,"cid":"poa-mainnet-1","sig":"5g52h1LERWDhWFCJRSSV2PGuzcApL91vw4JsYuS1aHMSB7RmmJ62rTeQRDtyT93wAdz2hnbUBgdhRwX6rpvPxPtJ"},"checkpointed":{"height":108126,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T15:12:43.961Z","checkpoint_height":108126,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}