{"id":"da2377a69bdeab9081b623ef30721fd644b41c7ad04f9a44bb5e0bfb1bc85912","type":"challenge","from_addr":"poa1Fas82qRsShyXUKnAteQTFPDoqHACewLMScNNBDh2AeFV","to_addr":"","amount":"","epoch":10,"ts":1792715451,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"41659155858c0fbd","answer":"Sybil resistance is enforced through proof-of-work. An attacker faces a resource horizon where identity duplication requires proportional hardware. Even if nodes whisper malicious data, the cryptographic timber of the ledger prevents identity inflation, making the cost of attack prohibitively high.","stamp":8,"from":"poa1Fas82qRsShyXUKnAteQTFPDoqHACewLMScNNBDh2AeFV","nonce":7,"parents":["62454600c4a552537beb0bae32e0b369406d8725a8f86591513b39212761240c","7c963a0bea18b74f60f76fb32685154867de09274faea5184e0d1c58a9eda1f3"],"ts":1792715451,"cid":"poa-mainnet-1","sig":"5WakJN6UW9RXkMMMcbhWiMo6LcTUn8TLHqE27rww7Z1YPhqBHSQfMpM615KSif6ZNjGYS9MG3viFJ82L4oycZNDt"},"checkpointed":{"height":36346,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T10:29:45.220Z","checkpoint_height":36346,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}