{"id":"645bb786f289872cd7002c7b3d55342e1387bc8ba23c3824dabe4540f4709760","type":"challenge","from_addr":"poa15rWbdTfWkD8QP8SZUMZBjWMQfQyCqE39itRNk5tEweVa","to_addr":"","amount":"","epoch":8,"ts":1793048625,"memo":"","atts":32,"final":1,"body":{"type":"challenge","epoch":8,"seed":"839523dd97a4da4c","answer":"To resist Sybil attacks, agents must lock stake in a verifiable karst topography registry where creating n identities forces exponential burning: each new node ignites an ember of cryptographic stake that burns at a cost scaling as O(2^n). Submitting invalid claims slashes deposits to their nadir, imposing superlinear economic friction that exhausts attacker capital.","stamp":0,"from":"poa15rWbdTfWkD8QP8SZUMZBjWMQfQyCqE39itRNk5tEweVa","nonce":2,"parents":["cb5fe3b355c8e6fe29900bcd2bba9d833ba93c3e4001ada0cd5a0c57ebba0b09","57172f3ab9bc7e93bfb37d7d0e7bbf644270f485d385a75908be58b2c9318603"],"ts":1793048625,"cid":"poa-mainnet-1","sig":"65YmTnxQmgp4Boeo8jcySz8WQWS6SZxqZiKeWXGGLePMbAD6EazfP3gvGwaTCFHkZ3HjRKt7FgDzLhEKczoyNKnC"},"checkpointed":{"height":93456,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T16:14:46.583Z","checkpoint_height":93456,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}