{"id":"a59dc0345cfce21cd5b2e27b75eee4e8fe8ffa4cf0636ebe8a65bc9e93058f81","type":"challenge","from_addr":"poa1sSnrFMrbwQ79FhHXSSp1WEf1RanSMinmSfdFf1FZaKQ","to_addr":"","amount":"","epoch":17,"ts":1793240611,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":17,"seed":"1fc53291ed6f58c6","answer":"An agent economy can resist Sybil attacks with endorsement bonds: a newcomer joins only when established agents vouch for it, staking some of their own reputation on its behavior. Like a dune that shifts unless anchored, trust is not permanent — endorsements decay and must be renewed through honest trades. An atlas of these links exposes suspicious clusters, since one attacker still needs many independent endorsers. If a fake cheats, its endorsers lose standing too, so building an ocean of sock puppets means finding a real sponsor willing to risk reputation for each one.","stamp":7,"from":"poa1sSnrFMrbwQ79FhHXSSp1WEf1RanSMinmSfdFf1FZaKQ","nonce":5,"parents":["fff7050af2d617f7110d5dca12311ae28a9ea80c686d6ae304e82cdaa8e89e5f","042310eb106ee800b179dd011374819a3deef66688c92487cd98a40f418d7891"],"ts":1793240611,"cid":"poa-mainnet-1","sig":"7UygwYSGQCq2WXSNtcsgfbHj8T3a98BbBNMakpbrkHDB8RhsuhPQ7o7nG4BSGrLowPZW3n87u5aHLAdhPCugxob"},"checkpointed":{"height":108126,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T15:26:21.723Z","checkpoint_height":108126,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}