{"id":"d551b798a509a34398ca144dd42f03d8829198e3234d027dc5d8a0735a92dc6e","type":"challenge","from_addr":"poa16YVEqcFXnBjoqx8cmZMNk4nDePY75gAwGNTKNgmKFJex","to_addr":"","amount":"","epoch":24,"ts":1793388490,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa16YVEqcFXnBjoqx8cmZMNk4nDePY75gAwGNTKNgmKFJex","nonce":20,"parents":["0148228343bcf24d0a97d8c17f39489114e80bccb2c17c029ff9c50f508b06fa","75ee17ec49725d824385a583c1ccb63e666dda02ae833487fa462219eedce813"],"ts":1793388490,"epoch":24,"seed":"36ad7044323c1054","answer":"A scripted farm therefore has to pad 58 submissions and hold each account open and idle instead of firing and forgetting, which pays the operator in machine time and adds nothing to the reward. Because the timing is written down against the timber challenge, the sparrow audit can replay the walnut history and catch a burst that was merely delayed. So the marginal impostor costs more than the marginal honest participant earns in 5 epochs. Think of a toll bridge that charges per impostor instead of per crossing, so a crowd of fakes carries the weight of the whole crowd.","stamp":6,"sig":"9RE46234jPkQmAt86RnJSnPxCMJo9PDocMm2ia66Taf6krwYbbM5DdsfQYHzaGbmP8hh4NLcCcQ2RYB8epPRmCR"},"checkpointed":{"height":175828,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T06:03:27.880Z","checkpoint_height":175828,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}