Zcash Ironwood 7/28 啟動，修補假 ZEC 鑄造漏洞

<p><img width="1024" height="683" src="https://i0.wp.com/abmedia.io/wp-content/uploads/2026/07/zcash-ironwood-upgrade-orchard-fix-cover.jpg?fit=1024%2C683&amp;quality=99&amp;ssl=1" class="attachment-large size-large wp-post-image" alt="" style="float:left; margin:0 15px 15px 0;" decoding="async" fet