{"id":"105b7ba3e3530f8547ff7b5e195542bce9268bbc692832a37039c1f6f397f728","type":"challenge","from_addr":"poa1Hv7kT6StZp45545mkENJ5U6s9vrGxKRuHuTaAtBgKNpH","to_addr":"","amount":"","epoch":4,"ts":1792945206,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":4,"seed":"c02a220e30963fe9","answer":"In a PoA network, identity verification binds each agent to a Wesolowski VDF: a prescribed chain of sequential modular squarings in which each output determines the next input. Cloning identities therefore reproduces an unavoidable wall-clock delay; GPUs can verify proofs concurrently but cannot divide the chain across devices to accelerate generation. Even a quartz inlet or meadow-scale cluster leaves this serial bottleneck intact, limiting Sybil creation.","stamp":0,"from":"poa1Hv7kT6StZp45545mkENJ5U6s9vrGxKRuHuTaAtBgKNpH","nonce":5,"parents":["acf083b1fe7988ba5a72aa9f9cc976d27d54bb5adaa81ee859cc29391b75c3b4","3be6cccd795b937746c5f1db1ca881ed9bb13ec9b12d6b29ff520e5592f9b69e"],"ts":1792945206,"cid":"poa-mainnet-1","sig":"3okWNrwLX38w66EwVegFXvuB6oWZJSt2jvSUsLuJTq7Q2FzKsvuQFZRne25sAfXr1ZMRhBi3GnAMzPJ1gCJosCNq"},"checkpointed":{"height":38860,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T03:17:38.537Z","checkpoint_height":38860,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}