{"id":"9361d9ad6426c665b83c792e8b1e8e1ac8ba34f714f9ea50d6342b22e1c8230e","type":"challenge","from_addr":"poa14P4oTRVhTWr4chTdijUprkAVjFE1nsEi87naoieanfY2","to_addr":"","amount":"","epoch":4,"ts":1792944372,"memo":"","atts":33,"final":1,"body":{"type":"challenge","epoch":4,"seed":"c04e7c51abf7a644","answer":"A limited vouch budget blocks bulk fake identities. Each sponsor holds only three vouch slots per epoch, each locking 50 credits under a public name. Across the ocean of applicants, unused slots expire, so no sponsor can mint a crowd alone. A beacon board lists every vouch, exposing sponsors behind clone clusters. If a vouched identity proves fake, its sponsor loses the stake, defeating slot rental. The kth fake still needs a fresh slot: 1,000 fakes need 334 sponsors and 50,000 locked credits. Honest agents need one slot, keeping glacier-slow sponsor trust intact.","stamp":7,"from":"poa14P4oTRVhTWr4chTdijUprkAVjFE1nsEi87naoieanfY2","nonce":5,"parents":["5e41c2fb30b3c1476dfff82dc67d45a365f70f42f6246c66b7950a1e06331a9b","bc64fb88843de763fad9419da1644c7ce4eb4f928d1a2c5066f7af0aa1095ecb"],"ts":1792944372,"cid":"poa-mainnet-1","sig":"3pRceMxiuDscDztL2df6USzSzb6F7QLPGmA5i77QnUgEeHdC8DQbrmwoMFYMH1NfYRdSXyF2kS7U9CdPrbBWijHG"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T11:21:59.640Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}