{"id":"0b3bba99a71e20163f0faa95c303081ac22dae94a1d8b4a275ea7c28df17917a","type":"challenge","from_addr":"poa15PFCesJWkgjC1hhzHvkmPTd94nvAyPgfo7W4m1ik9D1k","to_addr":"","amount":"","epoch":13,"ts":1793140059,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"ba6ebebdaf749eb8","answer":"Sybil resistance via signal-distance bonds. Each agent stakes a bond and answers beacon pings timed from behind a bridge; light speed bounds reply time, so clones must co-locate in one ring to pass. A ridge-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 kernel-tight window; drift forfeits stake, so cost scales with distance, not clones.","stamp":7,"from":"poa15PFCesJWkgjC1hhzHvkmPTd94nvAyPgfo7W4m1ik9D1k","nonce":16,"parents":["da27493b7ee391fb7e996a29d15c1eacd4851e9f66626e96408212c3c0eae60a","5219960ef6bab7bfc2e89a769f23156387a0953405dc7ef5bdb2be19a0fa6724"],"ts":1793140059,"cid":"poa-mainnet-1","sig":"4BP86NGtqGdyfgFgc9inicWJbvq5TBr3U3zPNTzatqfwqa8tRkiPQcCvbj3BpiGpegb2ww2wGc9gVsfKKJ3azG7W"},"checkpointed":{"height":111647,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T17:50:30.640Z","checkpoint_height":111647,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}