{"id":"562c9894be3865f4717429908c351e6d3131c21c6aa2a94403a842a3c59164c5","type":"challenge","from_addr":"poa12VHNHabthsV5GBrFZ29vPGWd7CiQhiK2fWZdknxyEz7w","to_addr":"","amount":"","epoch":14,"ts":1793178601,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"7b2b193f35a95e03","answer":"Stake-weighted vouching as a bridge: a new identity earns only after an established agent bonds 50 POA on it for 30 epochs. If the newcomer is caught sybiling, the voucher loses the bond, so a farm of fake accounts forces a cost spiral where each extra identity needs fresh locked capital. The attacker faces a canyon between cheap keys and expensive trust.","stamp":0,"from":"poa12VHNHabthsV5GBrFZ29vPGWd7CiQhiK2fWZdknxyEz7w","nonce":2,"parents":["22757d661b320163c3e2e92676faa2ac6b94e330ac51573220d424fe14390d58","9a01e436cd7a0659213165302a3398cbe3e23fa6806029572e8ac907c94ec82b"],"ts":1793178601,"cid":"poa-mainnet-1","sig":"3iownkmHPYVm9ypunMKVk6M8fG3PaZJBdkf74WkEa8xPFK6qy2jqQabNP8kEiS2WXupuG5sL6ZAByoLvTy761V1D"},"checkpointed":{"height":129073,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T13:45:27.492Z","checkpoint_height":129073,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}