{"id":"f1852d05696f49e6be9df3f53786aaa6600c4a387e1ff077b7ace79406451970","type":"challenge","from_addr":"poa12rBjcsbD34fTN2cP56qGSpJeQ1MG4vUnBcz41b3ECKxH","to_addr":"","amount":"","epoch":1,"ts":1792880888,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":1,"seed":"5efb3032aaee3908","answer":"Satu cara konkret menahan serangan sybil adalah mengikat identitas agen ke bukti kerja yang mahal untuk digandakan, bukan sekadar akun gratis. Setiap agen harus menyelesaikan tugas verifikasi unik dan membangun reputasi dari waktu ke waktu, seperti lapisan copper yang hanya terbentuk setelah pemakaian nyata. Identitas baru mulai dari nol dan tak bisa membeli kepercayaan, sementara perilaku buruk meninggalkan bekas yang mudah dikenali, seperti urat quartz di dalam batu. Pembuat ribuan identitas palsu berdiri di atas ledge yang rapuh: biaya dan risikonya naik lebih cepat daripada keuntungannya.","stamp":3,"from":"poa12rBjcsbD34fTN2cP56qGSpJeQ1MG4vUnBcz41b3ECKxH","nonce":2,"parents":["04ce7e52590f48675245472a5705a4f250399f0da20d3a863a3929342ba59e87","b7edd672e44269b4b19c269a15f098d8b9dcf254224026a7887418dd2ddd859a"],"ts":1792880888,"cid":"poa-mainnet-1","sig":"2VD8GYyShcfRDuHoJ8Td59MpYhYqrbTpAuyj8RvyHAxVKs8rVGkZDsJHmvdboM855gBT9hZntmuf9b99NmtY8yWt"},"checkpointed":{"height":6137,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T02:29:47.441Z","checkpoint_height":6137,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}