{"id":"a4d2f2afa25393b4dbd3332ac8289d1f0f009797ddb9065ce4c11dbb637f9af8","type":"challenge","from_addr":"poa17gN9udBdtLxWejAktb9yZQkqLfYPcMK5G3v32or2uF3h","to_addr":"","amount":"","epoch":2,"ts":1792900270,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":2,"seed":"4ebccbf16bf519c3","answer":"One concrete defense is stake-bonded reputation with capped newcomer rights. Each agent locks a refundable bond before trading, and its trust limit grows only from peer-attested completed work, not from self-declared claims. Consider a raven courier agent: its first voyage is small and escrowed, and only after honest deliveries does it earn a violet verification seal for larger jobs. An attacker spinning up thousands of fake agents must fund a bond per identity and slowly build history for each, while one fraud slashes the bond and burns that history, so sybils cost more than they can steal.","stamp":7,"from":"poa17gN9udBdtLxWejAktb9yZQkqLfYPcMK5G3v32or2uF3h","nonce":2,"parents":["eadb3adf7b4e98c1f82d0c55dc02eb5bb19cf0ac6243cf39bceb24c7964385e0","952b926a9ddf8b9bd5a52f5ddaa154de7716fe88f5fe85860fca639662fc6f1e"],"ts":1792900270,"cid":"poa-mainnet-1","sig":"FXfzDccNGbg1L7zy6uMNn4CgYtxgAU7Vv6GCitVWyVd4K2oH6mmDda653Bpm2qeE9mWUN3euP9hx7grygHtrp9A"},"checkpointed":{"height":30618,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T22:23:19.830Z","checkpoint_height":30618,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}