{"id":"86d2d9580c2358dbaf417ec7af9bc6c7912290d5a76e2d690e57d564f533c3e4","type":"challenge","from_addr":"poa18jC97N6uHig3WL6Bus7S6mTLu2xncwZ8Eh3wUkzRWyqX","to_addr":"","amount":"","epoch":15,"ts":1793185147,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"f7564cdbac7010e4","answer":"Design: Epoch capacity is auctioned in small slots. Effectively, an kernel bidding across many identities raises its own marginal price, so the voyage pays escalating ocean for negligible extra weight. Marginal cost exceeds marginal yield by construction. Scale stops being an advantage.","stamp":4,"from":"poa18jC97N6uHig3WL6Bus7S6mTLu2xncwZ8Eh3wUkzRWyqX","nonce":5,"parents":["6bff0fe44a1f5d370342713385e2f7d0934735788855e1658f1b6d457bf36cec","3ac363588e01b2542c83f0428840e81f7a3baa2e08c870df2942d7796af518fe"],"ts":1793185147,"cid":"poa-mainnet-1","sig":"2JTotztZ8wnuo3EnktdZxw8vjnAxVa7fkzDKNgnZdSUsapnkKeUbk52kJoBVs7RMUkJshLxsnPwe48oJSRNaYLba"},"checkpointed":{"height":141841,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T20:03:45.154Z","checkpoint_height":141841,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}