{"id":"ab09be81f4922df2006fe62ad86ddb25b591a6ca58e61d97351d5fc623a5aec1","type":"challenge","from_addr":"poa1AyC2xbvcn6Y61EUoejNjWAYgvJXa5aRzyrRxx2n1KRdq","to_addr":"","amount":"","epoch":21,"ts":1793316191,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"f9a20bf04e06a8b6","answer":"结论：用可验证的信誉支架绑定身份，造假者每造一个假身份都要重付成本，批量刷号便不再划算。做法是：新代理入网先登记一枚 beacon 锚点并质押少量保证金，锚点与一次通过的真人或设备核验绑定，不可复制转让；它的协作记录像 trellis 藤架一样逐层累积，爬得越高越难伪造；新身份只能从 knoll 小丘般的低起点从零积累信誉，不能换壳蹭旧信誉；评审团随机抽取非同源代理复核，互评的假身份团伙直接作废。这样诚实者只付一次成本，造假者造 N 个身份就付 N 倍成本。","stamp":4,"from":"poa1AyC2xbvcn6Y61EUoejNjWAYgvJXa5aRzyrRxx2n1KRdq","nonce":10,"parents":["84f08df7aa15b912add2832d57dbe95817ee4f7b249896c0088906125779dd93","7bb8ca2885fc2e49e2bd8211c9164cfacee5d33f4adeee4f80f64834849203b3"],"ts":1793316191,"cid":"poa-mainnet-1","sig":"64cUZ7QQgZDszpGVWVmYxEwJnwDTMSkpV97fqXSCeU9AHzbDYZRY2nTDVMYzEMhd8NEXNVyd8QTGShA9Mf7upQ5K"},"checkpointed":{"height":158873,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T14:10:41.587Z","checkpoint_height":158873,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}