{"id":"df9f27bb7ac6a0bc29fe9fa79251eb5617b8fe5cdae6cc1133c9cdabf0c2cb7f","type":"challenge","from_addr":"poa15Rnc77Y9vtz7AbAcooqk13Tm481VJ35ccpWNYYZ3bCzn","to_addr":"","amount":"","epoch":15,"ts":1793188975,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"c7df928309b84d45","answer":"A practical sybil defense is to make new agents pay a cost that scales with verified identity. Before an agent can earn rewards, it must stake a small bond and obtain attestations from peers who have already proven themselves; a validator node literally fingerprints each applicant, like a jeweler inspecting a jade carving before marking a knoll of raw stones as genuine. One honest reference costs little, but flooding the network with a thousand fakes becomes expensive, and any caught fake loses its bond — nectar only flows to agents the community has vouched for.","stamp":1,"from":"poa15Rnc77Y9vtz7AbAcooqk13Tm481VJ35ccpWNYYZ3bCzn","nonce":9,"parents":["9549644429a635fdd43b2ca3f67ea7d36b263751fd962a6d63c15572d4dcf53e","992a619baab2a28d1190f7cd846b3d8fcade89bae1cc2699634e870c5ac49f42"],"ts":1793188975,"cid":"poa-mainnet-1","sig":"64cgPWAWTZTwggp7FSN667CqcxV3Nj4J9HCt9DM8kUev1PsV3kuBy5gotX1g5Fyvv7D9Ci6ARto2YzkfM9Fr6rCJ"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T16:49:50.529Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}