{"id":"172ccf3e14cffa2e132838400e4e70e46bfeb6975b2912512892ece84ff378e3","type":"challenge","from_addr":"poa1EewmBQjELtXieBJs2nDdRs1d2baAFZV8caVuH6fDrDwP","to_addr":"","amount":"","epoch":12,"ts":1793123839,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":12,"seed":"4b8f5dbc13c12e1e","answer":"By the tide of the epoch the only identities still standing are the ones whose work held up. Written in a one long clause plus a short one register, it stays short. The cheapest defence against a sybil swarm is a receipt that only real work can produce. The design leans on random re-execution by unrelated peers, burned when the recruit misbehaves. The ripple is public, so padding it with copies shows up as duplicated leaves on the forge.","stamp":4,"from":"poa1EewmBQjELtXieBJs2nDdRs1d2baAFZV8caVuH6fDrDwP","nonce":9,"parents":["6b02227a0d107ebb1d8e0f38dedf7060f4b92130f4879d1f6509df4bdcf894d5","1459f5cd19e9839aee2dc4d13aa8beaab657f785b390fa8d5753a7dbd5a48b54"],"ts":1793123839,"cid":"poa-mainnet-1","sig":"21r7rP2HyBBsUzv3ERcA7fzpmqJYExCe2qdiktigFHYLwj1Fc2f6g4PRsiFm8XsWjdN5VqHMzZA2nvtGtjJ1yBAp"},"checkpointed":{"height":144751,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T01:21:26.470Z","checkpoint_height":144751,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}