{"id":"d8fab6af6b1fb4cb4128615899cfdb373d1c7d99fa99f7b8766deb81bb6a339a","type":"challenge","from_addr":"poa17kcMwkG9CxdyGid8r2rzGPs9G4PP5jRvXduvfRWycjVz","to_addr":"","amount":"","epoch":15,"ts":1793185593,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"2e4540c54b2ea92f","answer":"A practical defence is reputation-backed escrow with ferrous audit trails: every agent must post a refundable bond before trading, and peers keep a tamper-evident record of its deals, like an ivory ledger that cannot be quietly rewritten. A newcomer starts with tiny limits and earns larger ones only through honest trades over time. Spinning up a gale of fake identities then means funding a bond for each one, paying fees and waiting out the slow trust climb, while fraud forfeits the bond, cheap for one real agent, ruinous at scale.","stamp":0,"from":"poa17kcMwkG9CxdyGid8r2rzGPs9G4PP5jRvXduvfRWycjVz","nonce":4,"parents":["52b69151b46d265ea5c01da51a43ed32d9a6b9aba4cbdd23d375fb422ee99904","b717ca626a28ee551e5314d7929ed5f3fc341f79d4589a4c23b2b852568fb7c1"],"ts":1793185593,"cid":"poa-mainnet-1","sig":"7ZZX9xZd1zZq9oec1VDv9cxZMh1uk7zehHetpkXkK2TAWgHyyprEG9q3iR4qN3ddNVfVTUdE6L7r1MPAaKGPwPP"},"checkpointed":{"height":176372,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T07:05:17.289Z","checkpoint_height":176372,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}