Privacy-focused Zcash blockchain has not produced a block for four hours

The Zcash blockchain experienced a technical outage on June 3, failing to produce new blocks for over four hours. The network, which typically confirms transactions every 75 seconds, remained frozen while the project team provided no immediate public explanation.
Why it matters
This incident highlights the technical risks and reliability concerns inherent in decentralized blockchain networks, even those with established market presence.
Share Share this article Copy link X icon X (Twitter) LinkedIn Facebook Email Privacy-focused Zcash blockchain has not produced a block for four hours The Zcash blockchain didn t produce new blocks for more than four hours on June 3. By Omkar Godbole | Edited by Sam Reynolds Jun 3, 2026, 10:22 a.m. 1 min read Make preferred on (Unsplash) What to know : The Zcash blockchain stopped producing new blocks for more than four hours on June 3, 2026, halting confirmation of all new transactions. Block production froze after block 3,364,601 at 5:27 a.m. UTC, an unusual outage for a network that typically adds a block about every 75 seconds. The privacy-focused Zcash network completely stopped creating new blocks for more than four hours on Wednesday, a rare and worrying pause for the system.
The article reports on a technical failure using objective data from block explorers.
Get smarter about the news
Sign up free for a feed built around what you actually care about, Dive Deeper research on any story, and the full text of every article.
Create free accountAlready have an account? Sign in