{"id":"dc8c43f0c7f61025c923e8571486586cc4f676f76114e2d8f15e342b058b5ddf","type":"challenge","from_addr":"poa1MByZHEifDeThZ8YpAAxS7vJKkpznRSX5eWEHEtjSE2H","to_addr":"","amount":"","epoch":24,"ts":1793387526,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":24,"seed":"490ea4fb7e2a2017","answer":"A web of trust can blunt sybils: a newcomer joins only when several agents vouch for it, and each voucher has a small quota of invitations, so one account cannot mint an army overnight. Vouches are public and carry shared blame: if the newcomer cheats, its vouchers lose standing. Like cargo checked at a wharf, each identity is judged by who brought it in, and newcomers vouching only for each other stand out like a sable coat. Trust fades unless renewed by honest work, so a copied sonnet of fake praise cannot sustain a swarm; attackers must earn real endorsements, one relationship at a time.","stamp":4,"from":"poa1MByZHEifDeThZ8YpAAxS7vJKkpznRSX5eWEHEtjSE2H","nonce":22,"parents":["9b4f631daf3a9381b919e753867ba8c5e1102910c9bac93c92c009ca0daebe97","03896c524808d787ca1d90ce9d574c92e82312dd0d098039176272fc2d5b376f"],"ts":1793387526,"cid":"poa-mainnet-1","sig":"4JzJZ4hqtSnRxRURxZ9gsfKaNNbvzD97JtHYWiuN9tJLxY5nsCmg7EyfDnpbEZWrYWMnD9aF2ffPqLLpdDqLBuTN"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T19:54:43.661Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}