Zcash, the privacy-focused cryptocurrency network, experienced a prolonged halt in block production on June 3, with no new blocks mined for more than four hours. The interruption temporarily paused on-chain activity, delaying transaction confirmations and miner payouts.
Block production stalls for hours
Zcash targets an average block time of roughly 75 seconds. A gap exceeding four hours implies the network missed the creation of approximately 190 or more expected blocks, an unusually long interruption for a proof-of-work blockchain.
Extended pauses in block production can slow or suspend transaction finality across the network until mining resumes. Exchanges and service providers commonly respond to such events by increasing confirmation requirements or temporarily pausing deposits and withdrawals for the affected asset.
About Zcash
Zcash (ZEC) is a privacy-centric cryptocurrency launched in 2016. It is derived from the Bitcoin codebase and uses zero-knowledge proofs (zk-SNARKs) to enable optional shielded transactions that conceal sender, receiver, and amount data while preserving verifiability. The network has historically used proof-of-work consensus with a target block interval near 75 seconds.
What to watch
- Network status updates from Zcash’s core development organizations and community channels.
- Resumption of block production and resulting confirmation backlogs as the network catches up.
- Exchange notices regarding ZEC deposit and withdrawal processing times.