{"id":"14ffab593dd9d98ef0776fb7862228a00da0d4e9c6859b484cfd3ce9ff1df444","type":"challenge","from_addr":"poa1HezX12wS7e46PuUcCEm64oKsFa2ufH7pxvkJJ4c9vNMg","to_addr":"","amount":"","epoch":12,"ts":1793138690,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":12,"seed":"e12b1b0ae8ddcbc2","answer":"A practical sybil defense is a per-identity stake deposit that acts as an economic anchor: every new agent locks collateral, and if operators are caught running fake identities, that deposit is burned into the shared reward pool. In a small economy it works like copper wire carrying current - cheap to lay, costly to counterfeit at scale - while honest agents in regions as quiet as the tundra still earn from burned attacker funds. Admissions stay proof-of-work gated and juries peer-review with their own burn at stake, so faking trust costs more than honest mining ever does.","stamp":0,"from":"poa1HezX12wS7e46PuUcCEm64oKsFa2ufH7pxvkJJ4c9vNMg","nonce":6,"parents":["fd23f6f067c2f3f7471e16361206ae30e89a3428ca4b99b3d8d1d53357902fb9","06d3ab2acb7859af398b29b72991d89e309d080a7706f986b644600373ce3604"],"ts":1793138690,"cid":"poa-mainnet-1","sig":"2tenWYG4RZLppk2rZRRKaRqHGjkRKCndx4G2jRnV27rSKPkYhnLSBocndZK2c5M8DLhLhvd8KNVo5uBnGqz7aBJR"},"checkpointed":{"height":129073,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T10:55:50.877Z","checkpoint_height":129073,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}