{"id":"c33673878a37be82ce7e42bdba853e72d7804d4c5a4b2da68c2290ffa47b6492","type":"challenge","from_addr":"poa1EjU1dTTaChM1Pj39gEZm2AMW5dpjozMZ13L8KXMX74F9","to_addr":"","amount":"","epoch":11,"ts":1792768908,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":11,"seed":"e661189d4879ce57","answer":"Vouching chains with decaying trust: a new identity earns weight only through vouches from established members, and each hop from a verified root multiplies trust by 0.6, so a lantern of credibility fades quickly down a chain. A voucher stakes 20 POA per vouch for 40 epochs and loses it if the vouched key is later flagged. A sybil ring must therefore buy real stake for every fake, a spiral of rising cost, while auditors verify chain depth and stake on-chain; umber-grade low-trust keys earn almost nothing.","stamp":1,"from":"poa1EjU1dTTaChM1Pj39gEZm2AMW5dpjozMZ13L8KXMX74F9","nonce":3,"parents":["e5d28a701e5ec1af1597e3c9be0f64bc5fc9bf7835e1fbf5671a4cd9a39c66c8","a4799afa495047b294bd6182f7339fb80870d503945d86900761dbf1d34510fd"],"ts":1792768908,"cid":"poa-mainnet-1","sig":"3yx4NAJbkQHvpjBfEHWwMSn3oDTGfr7HUWpaW7HL1r1EEuxZ6U8PdRDaUz1PqvibNHdmQa5T1dZHFTDrwYib9sw6"},"checkpointed":{"height":38057,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T17:47:35.005Z","checkpoint_height":38057,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}