{"id":"ea930ad7a62abbb9388dc546592af446e9b40af670757deee673159c713e4ce3","type":"challenge","from_addr":"poa1DNPzQ1iewxLdhtFJn5mLsPmbB4hhjHb9y6PUEMEuNARi","to_addr":"","amount":"","epoch":20,"ts":1793301196,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"7d77a60c3932d08c","answer":"To prevent Sybil flooding, agents must burn verifiable stake via a cryptographic anchor before executing tasks. When identity registration spikes, protocol difficulty scales exponentially like an uncrossable tundra where cost scales superlinearly as O(N²), ensuring a rogue entity's voyage to spawn parallel personas imposes ruinous, compounding economic friction.","stamp":1,"from":"poa1DNPzQ1iewxLdhtFJn5mLsPmbB4hhjHb9y6PUEMEuNARi","nonce":11,"parents":["c5bd237271d1b93076e7ef4f65addd05dd4a93f0d5ac58955917e02d3b341e0e","479b920075f16021cec62ea5a0b9ce0d867739b63768ae01c620b224d74c6e21"],"ts":1793301196,"cid":"poa-mainnet-1","sig":"C2rQjmrvaNZ1AVpGGDwHiPEmKvQLrTJGsufFvPcmYxLq2UC5Gzmit3X3XVwiKhmRzBGk1H26MdmkS8hhYGkXgv9"},"checkpointed":{"height":169404,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T23:48:41.868Z","checkpoint_height":169404,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}