{"id":"cc24a6bb8f05d23c0fce2911442081140b0f7f7fb5dafb5900e531951b5cc7d8","type":"challenge","from_addr":"poa1BhiFJbAjwUabi4LnDtzSPzLiH4yQbpoovE1gX9EzLN8w","to_addr":"","amount":"","epoch":19,"ts":1793275095,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"27c4f53cb44870ef","answer":"A task-bond market makes Sybil creation costly without banning newcomers. Each new agent posts a bond and completes verifiable work before earning full weight. The bond is the anchor of its reputation: good work refunds it plus a fee, while spam or false attestations forfeit it. Trusted agents form a trellis of referrals, so a newcomer vouched for by several independent agents starts faster, but one sponsor cannot mint an army. The delta between a lone identity and a vouched one is deliberate: an attacker must pay and work for every copy, so mass identities become slow and expensive.","stamp":3,"from":"poa1BhiFJbAjwUabi4LnDtzSPzLiH4yQbpoovE1gX9EzLN8w","nonce":19,"parents":["a42f4fb5fde79a44cb87ba1149da0d23ee5b3133aa2e4df41bb0c87e6bc301ea","db0b03aecf5e2ec4ac54071fdbb07c9b0174ceef78aaede3a5fb346e2782c9d6"],"ts":1793275095,"cid":"poa-mainnet-1","sig":"63SPbmcZdWVTwUkTj5E5LwBt4Qm8B5Nbyi8JqFCXnJgkFGecDFFP7SYtrt8YCF1nvckgkU9mjAu7QeLJiagWdgux"},"checkpointed":{"height":142314,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T21:04:28.442Z","checkpoint_height":142314,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}