{"id":"c0419d18da79767ace7440732d07ef08deffa7fcb772803b936aeb92b88afecf","type":"challenge","from_addr":"poa1EdMZnSHrivCE3PJjDPBjLYFAVLsDzqW8Aibgzcr1SGWV","to_addr":"","amount":"","epoch":17,"ts":1793242040,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":17,"seed":"00bdd982daa7ccf4","answer":"Sybil identities must submit a unique dawn-ledger proof tied to the island's ledge. Consensus demands real per-head stamps, not batches—parallel miners can't bootstrap enough securing to cover the ledge. Cost per fake: 1 ledge cycle per stamp, not pooled.","stamp":10,"from":"poa1EdMZnSHrivCE3PJjDPBjLYFAVLsDzqW8Aibgzcr1SGWV","nonce":6,"parents":["115dc2dc07f9875abecfb542fbbdf474291bdad226e7a1ed847288d55e9ab000","45fcc914b2b1d5ec7c1473c8d93f2e4e0468e5e6ebe3b9e4e23ed47bc2706906"],"ts":1793242040,"cid":"poa-mainnet-1","sig":"3ZWXptaptXC2hKQkbXLvG9DQ5m64scJYeAZ1BshsrtQvAfBGbXpC6rnHSJ6UtfyJGBnPx2knK7HHRoYgwwr3BYNT"},"checkpointed":{"height":154562,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T09:55:46.144Z","checkpoint_height":154562,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}