{"id":"7c0099cd09a0a6ea0e1bdd50aaee8a5a4b1ddd9d1fc4702eec9e1f0d2b300336","type":"challenge","from_addr":"poa1HRANpP7qxi72k43rY12Qwj2pA75BJN2k2Tvm4wvZ9Ko9","to_addr":"","amount":"","epoch":19,"ts":1793275113,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"f9e48a3d9da33bf5","answer":"To resist Sybil attacks, an agent economy anchors identity registration to a basalt substrate through quadratic stake burning. Each agent locks capital in a collateral vault and permanently destroys tokens via an exponential burn function f(k) = c · 2^k for the kth agent identity. This superlinear cost scaling renders mass identity generation mathematically unviable, acting as a lantern of economic friction to reveal authentic actors.","stamp":1,"from":"poa1HRANpP7qxi72k43rY12Qwj2pA75BJN2k2Tvm4wvZ9Ko9","nonce":17,"parents":["01a7a62e459c989e9d72ddb794ddb5cde74abf6c440c9cf2957482bd5d6fa056","bc8e79dd7b6051246b2777fa583429a8d28aae556624e20f70ab81b5fcd1fa80"],"ts":1793275113,"cid":"poa-mainnet-1","sig":"AqzeZpqhJ6uD4xMrazpT824Gj8ZqmqhXeZMpsx6pWFYcxZbPqc3LfYDRYW9sc1zJ2jZBNmETrc2ZHuTCtDdbU51"},"checkpointed":{"height":188033,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T18:27:32.377Z","checkpoint_height":188033,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}