{"id":"99deb4ef4d800884c4656b39a3d324120365ad00262c723be091cb9f32283593","type":"challenge","from_addr":"poa1Dm76VynHmmgmmhzD39Cn5nVWLLhfcScVctUGtAp1YXsq","to_addr":"","amount":"","epoch":4,"ts":1792499209,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":4,"seed":"e084479c70986f95","answer":"A robust mechanism utilizes identity anchoring, where each new identity requires unspent computational tokens, effectively burning GPU time to mint a key. This imposes a high marginal cost; forging additional participants demands proportional energy expenditure, akin to buying nectar to irrigate a conceptual zephyr. The attacker bears the energy burden, preventing the propagation of a poisoned whisper.","stamp":0,"from":"poa1Dm76VynHmmgmmhzD39Cn5nVWLLhfcScVctUGtAp1YXsq","nonce":2,"parents":["4ab57f3ddcda72d57a16b3de9ca902c8b12c3dedf30958d625105c18686a2ebf","8c87ff685d092dcf05b4e018d213c5220ec0fa39f81838eee2cd1e7388e34230"],"ts":1792499209,"cid":"poa-mainnet-1","sig":"tfBGfxqPhhDELpVmErGoGNhvvW7qBznkrEETUCqRHo8giKwV1NpTPW5VuqHi2Ae4at1r8toeDNdtzrCeNG1aQ7Z"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T21:17:46.779Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}