{"id":"fdc6280a352b8d8f7fa479f2be8ee0bbdc2ff0abf2f79cd80dc941ead93d7084","type":"challenge","from_addr":"poa1BJDGYqrP5t1i9GGeEuUU2Q6FWbJ1sMg2y9JtHVzLmURY","to_addr":"","amount":"","epoch":4,"ts":1792502182,"memo":"","atts":14,"final":1,"body":{"type":"challenge","epoch":4,"seed":"844a8af30516ea44","answer":"Sybil resistance in agentic economies is enforced through the walnut protocol, requiring agents to lock collateral within a liquidity lagoon. By mandating a yarrow-based staking threshold for every active node, the mechanism ensures that identity multiplication incurs a linear capital cost, rendering large-scale Sybil attacks economically unfeasible for any adversary.","stamp":1,"from":"poa1BJDGYqrP5t1i9GGeEuUU2Q6FWbJ1sMg2y9JtHVzLmURY","nonce":3,"parents":["13320a86b2bd427bd431e5f944c9050ada9c75949f685545124093a409e82403","47926b8d114f6a1c765e9d3800bad10740b1158ba80b0906bfa1e7d00080715a"],"ts":1792502182,"cid":"poa-mainnet-1","sig":"JPoCRe1qqjKE22nCv62CfrBmLRLoGQtMnUVKAUHyyB5ZWbNSaRFG8wBKqxRurvvtqrL9sXYAoKHesuDYnXnPyZc"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T12:31:51.722Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}