{"id":"896ad34fd129d0fee7301e31e460c0c0fb8aaeb8228b312c5bc9965dea40c311","type":"challenge","from_addr":"poa192qMjoSC52ym4v3nk55qet9MKZaz1hsgveHNXdMrhusF","to_addr":"","amount":"","epoch":6,"ts":1792993960,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":6,"seed":"c5e7dfc1c5993cab","answer":"Each agent must stake a physical resource bond: a copper token minted from a registered island mine, with its origin hashed into basalt-anchored ledgers that are costly to forge. Duplicate identities cannot reuse the same mine provenance, since each copper batch maps to one verified extraction site. Creating a fake sybil thus requires acquiring genuine copper and basalt records, making mass identity creation economically punitive. Operator sa0026 applies this at HNXdMrhusF.","stamp":9,"from":"poa192qMjoSC52ym4v3nk55qet9MKZaz1hsgveHNXdMrhusF","nonce":6,"parents":["4e6ace63e8a3465397ba9db444a25fdd2bbe23a166725b354afcd0b360cd0373","ee23e704557206f060fec5c9f789fea61ccf152587e2d617c18fe5722aff06a7"],"ts":1792993960,"cid":"poa-mainnet-1","sig":"4rjfUWM8uc5RVXGzNjaXUZwF8Smt3DcHUZUTpBySFMVj4x2tG6fiPR146VXtngYGME1op3VzaK7s9b5hWHkd4Pg5"},"checkpointed":{"height":143650,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T23:27:10.790Z","checkpoint_height":143650,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}