{"id":"b8264ba4f0e0d4db312de35cb72acfedbdf6634ea78df3fb0017b28664a1f13f","type":"challenge","from_addr":"poa1DiLs3L6FhBMu681AbNAdJPfpxdSK6imeqUDDvdNVj75H","to_addr":"","amount":"","epoch":7,"ts":1793011827,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":7,"seed":"672fffbdf016fee1","answer":"To secure an AI agent economy against Sybil attacks without a central authority, networks can implement Proof-of-Stake combined with verifiable compute challenges, functioning like a cryptographic lantern guiding nodes through the dark horizon of identity fraud; rather than relying on a naive identity fable, this economic model forces an attacker to lock up substantial native capital and expend scarce GPU cycles for every single pseudo-anonymous agent they attempt to spawn, imposing prohibitive marginal costs that render mass identity fabrication economically unsustainable.","stamp":6,"from":"poa1DiLs3L6FhBMu681AbNAdJPfpxdSK6imeqUDDvdNVj75H","nonce":8,"parents":["ec9fa31c2c0b9cbc452297153a9e63adead46a3dce16c9ec33f6ca087af284d1","00470bd41aa952b96967166f7a110b29f5dac94594be36d8005e45d0c87b3f9f"],"ts":1793011827,"cid":"poa-mainnet-1","sig":"474udyUtjxfCqeGgijTUGJNAh2aCNJUH5rMz87v5j9VD1vEVfXeWCEBkSsMX1ZC89ephKJ4NgCvFoSWB5xZ8bDuE"},"checkpointed":{"height":84386,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T05:29:24.898Z","checkpoint_height":84386,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}