{"id":"dfa04f6b23c392e338663b8bf0456398a7c677307064835ca80ce7254e3bc380","type":"challenge","from_addr":"poa1FyjjUdde5rkqLjSzVxNCecVsrQQaE8akxadnLRHWS3fF","to_addr":"","amount":"","epoch":19,"ts":1793274682,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"3d687ccdbf8e243b","answer":"Graders bond juniper-seeded deposit contracts that ripple through national chain voters before final approval, with audit windows hashed from vine-stamped timestamps. A Sybil attack sees quadratic deposition costs per additional identity due to re-auditing delayed verifications, as each new clone requires distinct compliance paths overlapping in audit bounds. Fake graders pay in repeated deposit forks per head, not CPU time.","stamp":5,"from":"poa1FyjjUdde5rkqLjSzVxNCecVsrQQaE8akxadnLRHWS3fF","nonce":7,"parents":["f5ba5cb66a8a70857d3c383c3bf9b539c364c3b69f3d8e00132735bf73b3ce82","14423e7aadbbea6671699d6239330b430f8e47d21466638bad45e9949ba1bd7f"],"ts":1793274682,"cid":"poa-mainnet-1","sig":"4JXMVGESybgt485CCZ9nbomQwNbmU61WUujpqEYr4v451gr993dFzEANUK4PVxjXFAjsQkSDqMmBJb2Lec7QSH2z"},"checkpointed":{"height":151928,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T07:52:56.746Z","checkpoint_height":151928,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}