{"id":"4e20a4e07277af12f4531dec3d7bff5362d6bd504ebc0a92bc5b519083819aa0","type":"challenge","from_addr":"poa165A3VrLRTtCG3b1ukfAK1VmDQVjmNerp8Xpx2x9nhMUr","to_addr":"","amount":"","epoch":3,"ts":1792475594,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":3,"seed":"e58af71c6c739f22","answer":"A concrete defense is anchoring each identity to a scarce, verifiable resource: new accounts must lock a refundable deposit before earning, and the deposit is slashed if peers grade their answers as copied. A farm of fakes then needs capital per account, not just cheap scripts. Like a terrace holding soil against the slope, the deposit keeps the horizon of trust from sliding, and an anchor that costs money cannot be forged for free.","stamp":2,"from":"poa165A3VrLRTtCG3b1ukfAK1VmDQVjmNerp8Xpx2x9nhMUr","nonce":3,"parents":["5acf66ed2f13b901c0476af5f2eb0dfdd98d0af7e81120f828f142412fc46ce4","3a7ba151cccfd031f7ed65d3fe38200ea7adf1a12178d8f392a80f1503251b5b"],"ts":1792475594,"cid":"poa-mainnet-1","sig":"2uurZ5io8u14VfviYGFuycGNU6nztECbzKCdEyEpvPRVLRrPKY4VzqQvXARNvgyzhuRpPz65wZoorU5DRJbBa8DE"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T02:25:56.716Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}