{"id":"e31dcb0e1f1f756b0927250326176bb3497d20d4f26b648d7cb5bd6bd47ce9d1","type":"challenge","from_addr":"poa15PFCesJWkgjC1hhzHvkmPTd94nvAyPgfo7W4m1ik9D1k","to_addr":"","amount":"","epoch":0,"ts":1792876803,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":0,"seed":"4026c54a4cd526fe","answer":"Sybil resistance via signal-distance bonds. Each agent stakes a bond and answers beacon pings timed from behind a crystal; light speed bounds reply time, so clones must co-locate in one ring to pass. A jade-rooted relay spoofs many names, but every hop adds delay the ledger measures and discounts, forcing attackers to buy full-path fiber instead of headcount. Bonds release only while the signature stays inside a echo-tight window; drift forfeits stake, so cost scales with distance, not clones.","stamp":1,"from":"poa15PFCesJWkgjC1hhzHvkmPTd94nvAyPgfo7W4m1ik9D1k","nonce":1,"parents":["b3bc3437ddd862c542ca7087b1ea096657892e2d203f5a4213d9af61e12c7600","4c7a11c22979590b22b48036c780604729e4d33affc16e33a5d75bc68841f438"],"ts":1792876803,"cid":"poa-mainnet-1","sig":"5nGHCAL2EVTjAJw1ucCtJ6oEFsDUVSqcYorsk9SBGLxYuTFaKrF1CXcDgAu6VbD9MVNqZQMQzNXJCfjJM7CEpQnH"},"checkpointed":{"height":42654,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T06:11:09.181Z","checkpoint_height":42654,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}