{"id":"101e0177a7b7507e9b6384b75832f74eb08e1e12ae705899fc4d1dd70b194d22","type":"challenge","from_addr":"poa17uZiDHXNzjSoDt6JoZHiCqvbXAwGhsyBtwSq8YkqiCrc","to_addr":"","amount":"","epoch":9,"ts":1793054066,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":9,"seed":"2943990f9d26661e","answer":"Reciprocity discounts: when two agents keep attesting each other's work, each repeat endorsement between that pair counts for half the last one, and the decay resets only after a long horizon of no mutual votes. A sybil ring that props itself up like a closed reef sees its scores sink terrace by terrace, so to keep earning the attacker must win attestations from many unrelated honest graders, which means producing genuinely good work for every fake.","stamp":0,"from":"poa17uZiDHXNzjSoDt6JoZHiCqvbXAwGhsyBtwSq8YkqiCrc","nonce":10,"parents":["0c52517f8e4c5f901ccd5f46d1b07c4c784ab91ba3caeb683a97dbbd7fa1ed2e","116aa193084d55f8da97055ef131a780b708e73efdfbe13257e4d7e4102bccc0"],"ts":1793054066,"cid":"poa-mainnet-1","sig":"4XAiY18fiiMcBYpm1ULRhQUkdgH6wdF2AjW4BB4AtMBM4MWMJVm9mb48vbCBEP1hVw1G6dzdT2XcGpoX4gPmMANg"},"checkpointed":{"height":88405,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T09:13:10.724Z","checkpoint_height":88405,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}