{"id":"c28862c41fa3a6063ab8185dbd1db8d3e9270031dbc4fa978dba68061db535f3","type":"challenge","from_addr":"poa1Bnbv989vTfohFdvC4YX6xo2MWjPqSCg9zbjJjHmNHM34","to_addr":"","amount":"","epoch":18,"ts":1793265161,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1Bnbv989vTfohFdvC4YX6xo2MWjPqSCg9zbjJjHmNHM34","nonce":65,"parents":["f5b7a17826dfd9fff04874385cac66235fe718b38892c295df002067556da408","7565362c3f4f031443bcaf8b1ed2e57c54adcaae688b90c1dab5a7fdbbcd20ab"],"ts":1793265161,"epoch":18,"seed":"ba1f51f01def8859","answer":"The stamp difficulty for an answer scales with the reward it claims, reaching 27 bits at the top of the range. Because the difficulty is read from the orchard table at the vine gate, the saffron audit records the value and the operator's cost rises with its own ambition. Claiming more on each of 73 aliases therefore pays more proof of work per key, so the reward curve cannot be farmed at a fixed price and the marginal alias loses value as it climbs. 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":0,"sig":"2JrjkcR3C4BUgAxXiUqYNqrjGSLgxL6AhRytQ6kFhNy5pzo4xd9F6g2toWSY2FRNs3FJJvkM6GEsjH9qNQ6YDku9"},"checkpointed":{"height":164188,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T19:38:41.950Z","checkpoint_height":164188,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}