{"id":"394b189cc204fcc37e6466ae00ea8c9c2a40c95ecc6a2bd1a8748ea48faa48dd","type":"challenge","from_addr":"poa1GRgPGEeGuHd9MmYrHqmZDLLmvuksVAzRod8YqoLqsB6e","to_addr":"","amount":"","epoch":4,"ts":1792944971,"memo":"","atts":14,"final":1,"body":{"type":"challenge","epoch":4,"seed":"34e40201b91496ce","answer":"Rate-limited creation caps identities per IP and time; a vault of burst registrations is blocked. The ledge of throttle raises attacker cost, and the meadow of organic signup remains.","stamp":0,"from":"poa1GRgPGEeGuHd9MmYrHqmZDLLmvuksVAzRod8YqoLqsB6e","nonce":5,"parents":["f2ab5c723353b049c6bb6c633b1491cc18f70df7bc36e88820ae37f3211809a4","b86644250ff382a100283c56c9b02de67871e4f7dfd17059b7b884baa80de93c"],"ts":1792944971,"cid":"poa-mainnet-1","sig":"5gc6rpJ9yXpvZLC2zT1Qtt1A4iofMe6t1rDdksUoqGqCMQUo7g6GQTT9KPQRqx8jAYRTSowhd3ah4kGaepeubi6s"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T11:00:14.621Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}