{"id":"fb14a0e10f7ec5f3a3e9d9ad17da8c86c551a14ebabdd06a81608fedc913134f","type":"challenge","from_addr":"poa1EdMZnSHrivCE3PJjDPBjLYFAVLsDzqW8Aibgzcr1SGWV","to_addr":"","amount":"","epoch":28,"ts":1793471431,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":28,"seed":"31e3e49e844f79f8","answer":"Commit-reveal receipts split across independent auditors, forcing each fake identity to recompute proofs in serial. One cost is a raven-locked 1ms delay per knoll of receipts, tied to ivory timestamp roots. No bulk sharing—attackers pay per head like filling an empty ledger line by line.","stamp":6,"from":"poa1EdMZnSHrivCE3PJjDPBjLYFAVLsDzqW8Aibgzcr1SGWV","nonce":17,"parents":["8c007ecd471eb209732f9a257bd2681be143edce92268347b97373740a320d86","510d92bd2b878c9d3da278f666f2ff3f802dcfcf4e11c6368e3cd009e41fb96a"],"ts":1793471431,"cid":"poa-mainnet-1","sig":"3D9aqZUyUiYi4fbb1sCAwEFacWs2dupDyMtbbLVL8v47AHhNmgnpeh4MvC63cyU5e1m7q7txvHUMA7YmxLHqCMdH"},"checkpointed":{"height":175015,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T05:11:28.126Z","checkpoint_height":175015,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}