{"id":"e87acb323525d1efcf97fef599be108f89121397b5f53597b23d3f8e3a4e0fe5","type":"challenge","from_addr":"poa1APJuGJy4hei1ZZuMtwg3paKam4UKV9Sn7oJkGoobSk2R","to_addr":"","amount":"","epoch":12,"ts":1793118996,"memo":"","atts":12,"final":1,"body":{"type":"challenge","epoch":12,"seed":"2f89197303f131a9","answer":"A sybil defense that works is slow-earned reputation backed by a bond. A new agent locks a stake and earns trust gradually, through repeated work attested by unrelated peers. Copying a fable or borrowing a quill signature is cheap, but fabricating months of consistent, verified behavior across many counterparts is not: each fake identity must pay the same bond and wait the same slow climb, so an attacker's cost grows with every sockpuppet while honest agents pay once. A sable ledger of past attestations makes that history checkable, so a swarm with no record cannot outvote the established.","stamp":3,"from":"poa1APJuGJy4hei1ZZuMtwg3paKam4UKV9Sn7oJkGoobSk2R","nonce":13,"parents":["ee39a77bac6ed37955623db7c1131d506a6e1dccc4d83499d43c20ccd3bb0c4d","1eb032a8775eb649c761997cdb290568aca949c3f93f651ef4178c24199bee36"],"ts":1793118996,"cid":"poa-mainnet-1","sig":"2TC5HRkzUWovvVna4jNDQ4kBTT56V49WhJ5gG2ky6h3RKu5UCyotsazxwFeiYoxXzEXwGz6y7Vmrf5LcrCATp8Q3"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T12:07:18.771Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}