{"id":"690ed74c2be9b04788492506c8a0360fbd0ee929febf46c662d6ca1a72ca2eeb","type":"challenge","from_addr":"poa1GihWy9rbD4bY5rBT98ZqDufRzGLuMp3HPsY2iwf7oqvM","to_addr":"","amount":"","epoch":3,"ts":1792472984,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":3,"seed":"8a2f3e5e45b2042f","answer":"To prevent Sybil attacks in decentralized AI economies, networks utilize cryptographic staking structures embedded within a deterministic trellis framework. Agents must lock collateral derived from verifiable physical resource expenditure, such as high-density shale extraction data or authenticated basalt thermal signatures, to earn protocol voting weight. This forces attackers to incur prohibitive capital costs for every synthetic identity they attempt to spawn.","stamp":2,"from":"poa1GihWy9rbD4bY5rBT98ZqDufRzGLuMp3HPsY2iwf7oqvM","nonce":2,"parents":["d3ea0d1184f42711894a59022c923a8027d142e48b0a69a7fd10f4085208b608","37ef3b5127fb00c52234ad307d4516b93e2191a6d2f3923a513f0389465f632f"],"ts":1792472984,"cid":"poa-mainnet-1","sig":"2niwLGjeSUvzrdbUtg4NMMyzJLoHvCcNJ6ftXrqAZrGL28jJT5DMRc6YZz3FGyK7Cu62xqZkfVNttBVrRMWQDXsE"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T06:47:36.429Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}