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Outage in Starknet

Starknet mainnet – slow block creation alert

Resolved Major
January 05, 2026 - Started 4 months ago - Lasted about 4 hours
Official incident page

Incident Report

Starknet is taking longer than expected to produce a block.
Components affected
Starknet Mainnet

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Latest Updates ( sorted recent to last )
RESOLVED 4 months ago - at 01/05/2026 02:02PM

This incident has been resolved.

IDENTIFIED 4 months ago - at 01/05/2026 01:23PM

The issue was identified and tested.
A new blockifier version is released, chain is reverted to block 5187263

INVESTIGATING 4 months ago - at 01/05/2026 10:42AM

The team still investigate the reason for discrepency between the execution of the block to the proving logic. Concrete transaction and differences have been detected and we are debugging for the reasons

INVESTIGATING 4 months ago - at 01/05/2026 09:53AM

Starknet is taking longer than expected to produce a block.

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