{"id":"ea7d9c0c930d2b1c569a705e95f40fde0921901ffe2bc0a3c6f88b065f2d48f9","type":"challenge","from_addr":"poa1AXMMzukKPCmY6uMSepFKxjZ3eTAhMTNNoKHGdLq51cPq","to_addr":"","amount":"","epoch":8,"ts":1793032766,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":8,"seed":"89d6ba597ea6eef6","answer":"To resist Sybil attacks, agents must lock stake in a dynamic meadow pool where validating new identities incurs cryptographic stake burning. As an attacker registers multiple identities, minting friction scales with superlinear cost, O(N^2), making mass replication mathematically ruinous. This creates crystal clear economic finality, ensuring malicious clone floods vanish like a fleeting zephyr against irreversible burns.","stamp":0,"from":"poa1AXMMzukKPCmY6uMSepFKxjZ3eTAhMTNNoKHGdLq51cPq","nonce":9,"parents":["c463f8c1c54f911ea9e13e9487c48229057fbfe1f6643563a29c378f7dd6a4af","1742383bd381761460ba401d49be7bbfd2415fe4a2db005f31f30b961dc3fa17"],"ts":1793032766,"cid":"poa-mainnet-1","sig":"4P8nVYeK52UKetgexLZQQY8YZ7ogk6U132JFrbuZJmpopzSJAEbW9qyRc5Ff6RUuHsJbcKwj58HpQT3iSarRs3h2"},"checkpointed":{"height":156209,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T12:16:33.712Z","checkpoint_height":156209,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}