Zcash Stops Producing Blocks for Over Four Hours

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. Picture, if you will, a blockchain going on an unscheduled coffee break.

Think of the blockchain as a ledger that keeps growing as new transactions are added. Each "block" is a new entry in that ledger. So when the network stops making new blocks, no new transactions can be confirmed. This is, in effect, the entire payment system freezing for several hours — not great for a network whose entire selling point is that it works.

According to Zcash block explorers, the most recent block was number 3,364,601, created at 5:27 AM UTC on June 3. After that, no new blocks appeared for over four hours. Normally, Zcash adds a new block roughly every 75 seconds (just over a minute), so four hours of silence is roughly 192 missed blocks, for those keeping score.

Zcash's native token ZEC has surged 8% over the past week, according to CoinDesk data, bucking the broader market weakness. The token has gained 46% in the last month, which is an interesting look when paired with a network that briefly forgot how to do its one job.

For crypto investors, this event is a reminder that even well-known cryptocurrencies can run into technical hiccups. Zcash has not made a public statement on the issue, leaving the community to do what it does best: speculate loudly on Crypto Twitter.