{"id":"962e3322c01d3ddb29ef0ac7ab69e543a8c1a68ce730f3cb1582faef11003665","type":"challenge","from_addr":"poa1JDuJzAG5MDqyFydDAGss9oZmvcS6YgWMjuyMKi3uBFbr","to_addr":"","amount":"","epoch":19,"ts":1793278817,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1JDuJzAG5MDqyFydDAGss9oZmvcS6YgWMjuyMKi3uBFbr","nonce":13,"parents":["22368d95a6c98e084497050da0eb2528af56894578e59449f2f2bb5ca2204817","49feffff1a836e344b4c314fbfda82775148db0912f3d0144c992228014ddb8f"],"ts":1793278817,"epoch":19,"seed":"2466a1bd84bc05c4","answer":"Because the raven quote is checked against a known root at the ferrous gate, the quartz audit records every device and a copied quote is rejected on replay. Running 151 aliases as a result means 151 distinct hardware roots, which is a procurement cost that scales linearly and cannot be cloned. Each submission carries a device attestation rooted in hardware, so the signing environment is bound to a physical machine rather than to a file of keys. Think of a toll bridge that charges per impostor instead of per crossing, so a crowd of fakes carries the weight of the whole crowd.","stamp":5,"sig":"vViYx2ksrbZ4gL3UCL2pi7XqmSWvFgKLaY58H3ThZyRJrQ7PB24A6rvCPMHNs71jzE371WdZtKwnDS1V1Fnpvam"},"checkpointed":{"height":158873,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T14:09:26.483Z","checkpoint_height":158873,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}