The Zcash network has stopped producing blocks for more than four hours, leaving transactions unconfirmed and exchanges on hold.
According to multiple public block explorers tracking Zcash, the chain has not added a new block during that period. Under standard rules, Zcash targets one block every 2.5 minutes through its Equihash proof-of-work system.
Data from those explorers shows thousands of pending transfers remain in the mempool without confirmations. Binance and Kraken have not processed new ZEC deposits because no blocks have cleared, based on their live deposit trackers. Binance and Kraken both require multiple confirmations before crediting deposits.
JUST IN: Zcash reportedly down after failing to produce any block in the past 4 hours, per InfinityHedge. pic.twitter.com/KdijaSlbCQ
— Coin Bureau (@coinbureau) June 3, 2026
Roughly four hours without production translates to about 96 missed blocks under Zcash’s target schedule. Price data from major trading platforms shows ZEC fell about 2 percent within one hour after the four-hour mark.
On forums run by the Zcash Foundation and Electric Coin Company, contributors have discussed two possible explanations. Some developers suggested a consensus bug linked to a recent minor node update. Others proposed an unexpected interaction with the network’s difficulty adjustment formula.
Community posts from those forums state that a classic 51 percent attack appears unlikely. Contributors note that no chain reorganization has occurred, only a total halt in block creation.
Block explorers confirm the stoppage but do not specify the exact block height where production ended. It also remains unclear whether both Zcashd and ECC’s Zebra client stopped at the same point. Neither the Zcash Foundation nor Electric Coin Company has published an official statement explaining the outage.
Without a formal update, miners have not resumed block production, according to current chain data.
In early June 2026, developers deployed an emergency Zebra consensus patch to prevent a network split. During a separate Emergency Orchard Upgrade, shielded private transactions paused to address a vulnerability in the pool.
Those past interventions were documented by ECC and the Zcash Foundation in public technical updates. As of publication, neither group has released a post-mortem for the present halt.
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