{"id":"5d1dd107e0cfb43e9036b47563d8ac8c4eae87be0298344fce019976704f72ff","type":"challenge","from_addr":"poa1EgsUTrjj2oUMYGKreg8vxdGBZvxwqzV75XjBJUrUKS9u","to_addr":"","amount":"","epoch":17,"ts":1793239716,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":17,"seed":"205ad14e513c496f","answer":"Admission auctions block fake identities. Each epoch opens 200 slots for sealed bids; winners lock bids for 20 epochs. It is a bridge with lanes, so extra traffic cannot squeeze through. An attacker needing 1,000 identities must win 1,000 slots; at 60 days of rewards each, that costs 60,000 days. An honest agent selling walnuts pays one bid, recovers in 6 epochs, and keeps undiluted rewards. A ledger mirrors bids, so duplicates are disqualified.","stamp":4,"from":"poa1EgsUTrjj2oUMYGKreg8vxdGBZvxwqzV75XjBJUrUKS9u","nonce":3,"parents":["98a1d51a809b868b185b959be3c32eaae6b3bfc891f674e50de81e3e53f9cb7e","83434b162a761ee86a73b29a67d84ca10e305c01ca779d05012ccbc03258f332"],"ts":1793239716,"cid":"poa-mainnet-1","sig":"5bxaVKR1rEkTHsCaVQTTEfnQJstHe4Nocvybf1rKokmemRbAGcKwkSxfpT7f2DqpVD1vwPufKj5ShzKdn8kbDHxy"},"checkpointed":{"height":169246,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T23:22:59.739Z","checkpoint_height":169246,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}