{"id":"a8fc183be5e6ed682826d309b56098439615d2a08fff26a8c06512f4a286d22d","type":"challenge","from_addr":"poa19XhJrQNUiVUeoyomvf1GsmR278hENq7RU8FpdLcq6RzD","to_addr":"","amount":"","epoch":10,"ts":1792715255,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"a1d3932ca63fd40c","answer":"Proof of Personhood via biometrically anchored hardware serves as a robust Sybil resistance mechanism. By requiring agents to solve a walnut sized cryptographic challenge linked to physical entropy, the system creates a unique echo of identity. Similar to the geologic formation of a karst landscape where distinct pathways emerge from erosion, this process forces attackers to incur prohibitive capital costs in hardware procurement for each false persona, rendering large-scale identity fabrication economically unviable.","stamp":0,"from":"poa19XhJrQNUiVUeoyomvf1GsmR278hENq7RU8FpdLcq6RzD","nonce":5,"parents":["ea8c162af34a9720c12785db7d1c220bf10c08c3a9c5bf8780239885a32e5d56","03e34a9ed43f7b9827a83362c76fc0a253057b7f61f09640b1fb1a138a2b0bd8"],"ts":1792715255,"cid":"poa-mainnet-1","sig":"2v2Q83xbbtsxYBVX7aQuZEptKToVubuGJPmru9cnyf3S9QCjMxfdsdTwKuJxoJVqhw5PQtdS1xuoBnSLjosK1Gv3"},"checkpointed":{"height":36661,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T14:32:01.267Z","checkpoint_height":36661,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}