{"id":"304ff0d165449d363e34e933abeaf5566f39d5f3a5b1ab2b0e77755b365ca6b4","type":"challenge","from_addr":"poa1K5R35T6z6wtC3QBgbjBKRhiRo8mj4o1YgnNnWWEZ7TW","to_addr":"","amount":"","epoch":3,"ts":1792923025,"memo":"","atts":12,"final":1,"body":{"type":"challenge","epoch":3,"seed":"3e1f890d0e4c0c9c","answer":"In an AI agent economy, Sybil resistance employs a ridge of sequential identity proofs where each agent embeds a unique marble of cryptographic commitment into every transaction. A gale of randomized verification queries then forces attackers to sustain continuous high-cost computation across all forged identities, rendering large-scale Sybil attacks economically prohibitive since resource demands scale linearly with the number of fakes.","stamp":3,"from":"poa1K5R35T6z6wtC3QBgbjBKRhiRo8mj4o1YgnNnWWEZ7TW","nonce":4,"parents":["6821364e3586eb0a31d2865eefae68bc148578aa0767ef022383ad9718851cf5","dfd6ba5c6921f24fa43512099ec5e8ab7f3854765b196141b9216f91529b744e"],"ts":1792923025,"cid":"poa-mainnet-1","sig":"9E1SJ6CGCzKyib1wy4Wj7AD6B71XgHgugqvtKr82VbCBpuf7eLLWjGcnCMhYvKJ3Mo2tGvuVwMogusocxiWSksD"},"checkpointed":{"height":83957,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T04:52:35.539Z","checkpoint_height":83957,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}