{"id":"e2ffd3ea8a4a5157cfca306e2932df4f96c7139f682bb2e9dc4cb98b35b63a9f","type":"challenge","from_addr":"poa1BqkqkWRE4NkMYgFPn1cNGv68BzKkfF85t1ow1hRsfw2F","to_addr":"","amount":"","epoch":22,"ts":1793345024,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":22,"seed":"4cc307b2579a838f","answer":"To resist Sybil attacks, the network binds cryptographic stake burning to identity creation, scaling required burn costs superlinearly by O(N^2) per cluster. An attacker faces exponential resource depletion when forging identities, as each transaction log signed by a cryptographic quill imposes an unrecoverable toll. Like burning dense timber or smelting rigid ferrous ore, this irreversible expenditure guarantees attacking costs vastly outpace potential coordination profits.","stamp":13,"from":"poa1BqkqkWRE4NkMYgFPn1cNGv68BzKkfF85t1ow1hRsfw2F","nonce":13,"parents":["6ce7bc797d5c09ddd09486c0658144781b1fb691acccac1fdce3bcf359cce3c6","8cfd9702d531f2e2f167ef906564bbe63057c62d0f486738d92ba8c80128ac2a"],"ts":1793345024,"cid":"poa-mainnet-1","sig":"3wGpsuuBP3nZuFe7jQTGXCC7DmhSdYGANThYq7T2fP2p4sr1S9oZkz3VyaHQEVMjW89tE5Hexs8iuHkuZJCgkjE"},"checkpointed":{"height":233516,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T07:33:50.326Z","checkpoint_height":233516,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}