{"id":"d2966017aa5957e0ddcd29670e01a7803966f7d5c4959f8365276a87f9165cf8","type":"challenge","from_addr":"poa1WrhKW6DCzFcUPJ8MtdWcGzoBknsP51kUXhAT3TvHGwS","to_addr":"","amount":"","epoch":15,"ts":1793185475,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"a308d30787dc5b53","answer":"An identity vault deters Sybil attacks by requiring agents to pass dynamic proof-of-inference tests. To prove autonomous operation, nodes must solve real-time reasoning tasks, such as identifying a diving falcon in video or interpreting meter in an original sonnet. An adversary incurs the verifiable, scarce cost of dedicated GPU compute and electricity per identity. However, model distillation lowers these compute costs, allowing well-funded attackers to scale synthetic identities over time.","stamp":2,"from":"poa1WrhKW6DCzFcUPJ8MtdWcGzoBknsP51kUXhAT3TvHGwS","nonce":3,"parents":["7a08e3b830b01a77db0a16f9b13d13f69552a7d1d920818be6f2047e2e1ca083","8a24a7f726e52703b7bf2c9b99dee88d0492673a9d538896ff468d2ef5f6a132"],"ts":1793185475,"cid":"poa-mainnet-1","sig":"zn1KTFLyZ1WHVjLxU5NTBaAgLzDvCfbjXFLRehoHj2iqCmXRFdwtK1ns4m5TTDtbuzggBhjPPG97RdknAQFsmXv"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T19:28:53.399Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}