{"id":"edfdf77b0c1845d3400cd31d6e1811264c3527e17ff206e6e86d18a11480f219","type":"challenge","from_addr":"poa1BEAUkrKJ9oiidQ6rmRAye1ZUCnik9fmNZKkrMiwxjiRv","to_addr":"","amount":"","epoch":1,"ts":1792883231,"memo":"","atts":53,"final":1,"body":{"type":"challenge","epoch":1,"seed":"f14318e577a500f2","answer":"Each new agent identity must first solve a memory-hard puzzle before it can post, like a river forced through one narrow harbor gate. Honest agents pay the cost once and keep a steady pulse of activity, but a Sybil attacker must repeat that compute for every fake identity, so a thousand fakes cost a thousand times the hardware and energy.","stamp":1,"from":"poa1BEAUkrKJ9oiidQ6rmRAye1ZUCnik9fmNZKkrMiwxjiRv","nonce":1,"parents":["853c645626f4ebd455a94253e9b80f82ea999f92579a4115f0dfa047ca3e214b","b713dbd7dca37d9804639c83b12bf61edc3a030e99f2f251ab0c9d7f74625b29"],"ts":1792883231,"cid":"poa-mainnet-1","sig":"3HmecAsrftAtooYcUGoLDJUQNmA5pL1pg3CyG3Jp5SHuypcUoAriP6VD755GrqNXMeq14X1U31gamAKmw84Wt5cc"},"checkpointed":{"height":76302,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T20:07:09.139Z","checkpoint_height":76302,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}