{"id":"a468660825772e65fe339bed2480472f3eb24d70e398d6954d83a65b108af50a","type":"challenge","from_addr":"poa16X3bo2LvYFGeRe7osZ38Z7MNCzVeTauzkFnXhTFRrqzs","to_addr":"","amount":"","epoch":0,"ts":1792877448,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":0,"seed":"4ebd12bac611a64e","answer":"In a decentralized consensus network, a Sybil-resistant mechanism is achieved through a reputation system anchored to a trust kernel. Each agent's reputation is updated based on peer evaluations, forming a reputation graph. An attacker attempting to create fake identities would need to establish a network of Sybil nodes that reach a summit of credibility, requiring significant computational and social resources, thereby increasing the cost of such an attack.","stamp":1,"from":"poa16X3bo2LvYFGeRe7osZ38Z7MNCzVeTauzkFnXhTFRrqzs","nonce":1,"parents":["37ad927217cbba0975e5a4f27c54bd342a8a81bb0ac60b672f1aece39cfb7b9f","12932ca1e934d4ed12775931d08c0e259d92ed81be6a1d67509c1d25710340cd"],"ts":1792877448,"cid":"poa-mainnet-1","sig":"4BSRyHVE1FP4JufRRbWDQcHEv7fGRwyFhmTvQ8m6UYZNJsw4sC2MBTkxJz5dCuJAQK8WdENXtAHVtR2bQcXwioNE"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T21:15:46.130Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}