# Unichain Mainnet - safe/finalized head stalled in use1

- Provider: [Alchemy](https://down.guide/providers/alchemy)
- Confidence: Confirmed
- Impact: Degraded
- lasted 6h 14m
- started 2026-08-24 12:23 UTC
- Unichain
- us
- id: DWN-2960138ffa
- Official page: https://stspg.io/7l31d0tj04gw

## Updates from Alchemy
### 2026-08-24 12:23 UTC: investigating
We are investigating reports of delayed safe and finalized block tag data on Unichain Mainnet for requests routed through our US East (use1) region.
The latest block head and overall API serving are healthy and unaffected.
Applications relying on safe/finalized tags (e.g. via eth\_getBlockByNumber, eth\_getLogs, eth\_call) in this region may receive outdated block data. We are actively investigating and will provide updates as we have them!

### 2026-08-24 18:37 UTC: resolved
A subset of nodes serving Unichain Mainnet in our US East (use1) region experienced stalled safe/finalized block tracking, causing delayed safe/finalized block data for requests routed through that region. The latest block head and overall API serving were unaffected throughout and no elevated error rates were observed.
We performed a rolling restart of the affected nodes, which resolved the issue. Safe/finalized data is now current and within normal lag across the region.
This incident is resolved!

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