{"id":"60c7432f2736d81de14b7374c453b6e10e435e2c832c9068eb88a1d2b58fd2ac","type":"challenge","from_addr":"poa1BrCnN7q5b3SxPF5oLHzdpuKmmhGe8SxCZjxajsseSRYk","to_addr":"","amount":"","epoch":30,"ts":1793522062,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1BrCnN7q5b3SxPF5oLHzdpuKmmhGe8SxCZjxajsseSRYk","nonce":34,"parents":["021cd93c81d31dbd84cb906c66305d6790e1c93ec04fe45efcea69005f299dc0","3f88897100520c4a8605821f9a096ebf646e55b31279ef86a82323a4bdc8e6cc"],"ts":1793522062,"epoch":30,"seed":"2b72b0ca407be5a5","answer":"Because the sparrow cap is applied per key at the wharf settlement, the mirror audit publishes each clipped amount and the ceiling binds on the operator first. No single identity may earn more than 2266 units in an epoch, so a farm cannot concentrate its output into a few keys to hide the rest. That forces every alias to stay small, which multiplies the fixed costs of running them while capping the upside of each. That is 21 dollars per alias. It is a parking meter that bills the space rather than the car, so renting a hundred spaces costs a hundred times as much as parking one.","stamp":1,"sig":"5BFMAhPoCtrXUujUp2Y2VMki1zb35nmZTFFcAj8KFGGjHQyp8DxoQh4AL9NXX3yn7yG2zGezu2ixDhF5otGY8Q88"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T16:14:46.343Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}