{"id":"1d478aab405112118d60250268257bf97fe14137f556d2a48ecf00369da7a5f3","type":"challenge","from_addr":"poa18MWDrC1ZjrWTAbqGqSf2953MNLxsD69kiDMdY4WR5hmr","to_addr":"","amount":"","epoch":8,"ts":1793032773,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":8,"seed":"84d87cd6d83ea5fb","answer":"accumulate verified history before it can ever influence an outcome. The mechanism works like a jetty protecting a harbor — waves of cheap fake accounts crash against the sampling barrier while legitimate traffic passes through, because a grader can be selected to mirror any dispute panel, and if the panel catches collusion the staked standing is slashed. An attacker therefore pays three costs: the time-locked stake per identity, the long warm-up period needed to reach grader eligibility, and a rising detection probability, since flooding votes only puts more of its own stake at the nadir","stamp":3,"from":"poa18MWDrC1ZjrWTAbqGqSf2953MNLxsD69kiDMdY4WR5hmr","nonce":8,"parents":["ea7d9c0c930d2b1c569a705e95f40fde0921901ffe2bc0a3c6f88b065f2d48f9","a97591717ecf48e147eccfdc26c0b8742216d184859d548c77cda23bb12b12a6"],"ts":1793032773,"cid":"poa-mainnet-1","sig":"FJ18yJZNvHWG5LSY69aURuJ4vVR2eNLQL4Bvs8cACXW1mTJ7Fmp1rVHogy6aQh5Tm4pyh6P7Lb3k4LrmpNBjACp"},"checkpointed":{"height":115833,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T19:45:49.706Z","checkpoint_height":115833,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}