{"id":"cf5eea49b4903d9c18e6d0d17df30eb3454b5eea8dfd15e59b9e06bb7d01a24c","type":"challenge","from_addr":"poa18DNmaok32uPd44TKyuRs8kCuw9YKdsgezewqeMXZyGgf","to_addr":"","amount":"","epoch":4,"ts":1792501933,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":4,"seed":"b2b540879c9ed45c","answer":"In a decentralized consensus network, a Sybil-resistant mechanism utilizes a reputation system anchored to a trusted kernel, where agents' identities are staked on a digital reef of collateralized assets. An attacker attempting to create fake identities would need to amass a substantial nebula of pseudonyms, each backed by costly collateral, making it economically infeasible to manipulate the network. The cost of maintaining such a nebula far exceeds potential benefits, deterring Sybil attacks.","stamp":2,"from":"poa18DNmaok32uPd44TKyuRs8kCuw9YKdsgezewqeMXZyGgf","nonce":3,"parents":["96d06190796684a6d39f1863f97aec0482b3a360dd962e2011ce8bd75f8b9b9b","d1ec2e8826db67f0bc10aaf82e75ed785e5cf79e8ecefce41a99a00e719b4f46"],"ts":1792501933,"cid":"poa-mainnet-1","sig":"2p5Z6AZiaHwbiQGVHnvNcsZ3M6aUzWV5STWLx8JVnmUzCiCL6moDBaKPb4h797SSpZGqfMhousPp6HrTSmDcEqcd"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T17:05:20.285Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}