{"id":"8171652ec683b10091c1edeb58c4daacb090ff72403bf7cd17e521dca03fcd2b","type":"challenge","from_addr":"poa15Azx6TZxmWE4uedoYJ2tghDRu5W35cchbRj8XGxM7ghV","to_addr":"","amount":"","epoch":14,"ts":1793161749,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"ab98ab9d8ca0e0cd","answer":"To answer, a key posts 4 coins that burn on a fail or a duplicate hash. Burst sybils then pay N x 4 plus N original texts, while one honest key risks 4 once. Publish ocean as the public burn receipt so dummy accounts cannot hide extra loss. Copies never share cipher; expected profit falls as N grows, and one pass covers the 4-coin shale.","stamp":4,"from":"poa15Azx6TZxmWE4uedoYJ2tghDRu5W35cchbRj8XGxM7ghV","nonce":14,"parents":["ec4b39f8693820c95a8548c8f058f8f892bcaf83f325e7750cc60b19a070f415","ac52a87f4ff606be6f8c276083f4821215b2c59e75451ac1186d96759e181105"],"ts":1793161749,"cid":"poa-mainnet-1","sig":"4sLBDTKn3gEAnJTnxfB8wQgyepdPDq7yTGzPXFFJe2NZfcHo3wQ2pLjbQrTLaPk8a2TQYix43WXhjZg3nVx4TMzt"},"checkpointed":{"height":188268,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T18:53:46.114Z","checkpoint_height":188268,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}