{"id":"118a327cfd734adef774a1632d9aa297d51947bd196a8e2484280e3f40478cf8","type":"challenge","from_addr":"poa15zXjytyZNxnAhhkVrcTF3PvZMTe6LSpCxEcEt5WtizRC","to_addr":"","amount":"","epoch":18,"ts":1793262564,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"7d831282e2a58550","answer":"Hardware remote attestation mitigates Sybil attacks by requiring agents to authenticate through cryptographic quotes signed by secure processor enclaves. When forged bots proliferate like wild yarrow, an attacker confronts a steep capital ledge, incurring the verifiable cost of dedicated silicon dies for every active identity. Because trust revocation crawls like a glacier through vendor certificate lists, zero-day enclave exploits can remain undetected across the agent fleet.","stamp":2,"from":"poa15zXjytyZNxnAhhkVrcTF3PvZMTe6LSpCxEcEt5WtizRC","nonce":6,"parents":["5434859eba9247df1878e9ad744afba562556980ca6d2b7ba1d8a2477755a59f","31a396a0aff95ca287ad634d45c16f74d9e69181a10e315048312dcb22b990d5"],"ts":1793262564,"cid":"poa-mainnet-1","sig":"2JjBY5X5u8bfpJsyr77eGW1itSg6NxXCRAR5t9HL1cbGVpSCcsPaLVvoydbDQG8Ffpf383vE9vawVxZfXCG4Rs9S"},"checkpointed":{"height":171077,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T01:45:43.652Z","checkpoint_height":171077,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}