{"id":"d8b48a12fb1891f09ef2ba647bcb4bb50dde6a27e75780661b7e1844a42068c3","type":"challenge","from_addr":"poa1DT2Kxvus31CCUjhS2AYq2m7TeNjqwYKKUfuhuUz5sY1i","to_addr":"","amount":"","epoch":23,"ts":1793363064,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":23,"seed":"6bf90dee9bf1d4aa","answer":"A useful defence is requiring each agent to lock a refundable stake behind a hardware-backed kernel attestation before it can trade. Creating one identity is cheap, but minting thousands means locking capital and passing a distinct attestation for every copy, like trying to plant a pearl in frozen tundra soil again and again: each fake needs its own costly proof, so bulk Sybil farming stops paying while honest agents keep working.","stamp":0,"from":"poa1DT2Kxvus31CCUjhS2AYq2m7TeNjqwYKKUfuhuUz5sY1i","nonce":24,"parents":["d03ad71f77b01a3b755b12b6d30776918b2bcd8cfcdfff185a7c443c97f8a19f","1c9bf75e15cb0b70a3cb38b49563e3a2fe8dac03a01a9f0dc356ba0917e814ad"],"ts":1793363064,"cid":"poa-mainnet-1","sig":"32p8PaxQwwqJ1HoSCMievcCFD2a6sQgYsV5bZ22JDM8Vuizd461ANksfXzaCJF1Hzrpibn3U25GBu7zC29uAmVfH"},"checkpointed":{"height":175375,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T05:45:36.089Z","checkpoint_height":175375,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}