AI-Coded Transaction Causes Cardano Chain Split

Crypto News Blockchain

AI-Coded Transaction Causes Cardano Chain Split, Homer J Admits Fault

Written by Aaron S.,

Editor-In-Chief

Last Updated: November 24, 2025

Key Takeaways

A faulty delegation transaction on November 21 caused Cardano’s blockchain to split briefly into two chains;
The issue came from an old software bug that made nodes interpret one transaction differently;
The bug was triggered by AI-generated code; Homer J admitted fault, and the FBI is investigating.

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AI-Coded Transaction Causes Cardano Chain Split, Homer J Admits Fault

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The Cardano blockchain experienced a short disruption on November 21 after a faulty delegation transaction caused parts of the network to split.

The problem came from a transaction that was valid by the system’s rules but triggered an old software flaw, which interrupted normal operations.

A report from Intersect, a Cardano ecosystem group, explained that the issue began when a "malformed" transaction, used to delegate ADA ADA $0.3810 to a staking pool, was sent across the network.

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Because of an outdated bug in a key software library, some nodes read the transaction one way while others interpreted it differently. This disagreement caused the network to divide briefly into two versions of its blockchain history.

Once the cause was identified, staking pool operators were asked to update their software to the newest release. This update helped merge the split chains back into one consistent record, restoring regular service.

Even with the fix, some worried about possible double-spending incidents that could have resulted in real financial losses.

The person behind the triggering transaction, known as Homer J, admitted to creating it using AI-generated code. They have accepted responsibility for their actions and for causing the temporary disruption.

Cardano founder Charles Hoskinson confirmed that the FBI has been informed and is investigating the incident. In a separate post on X, Hoskinson warned that this type of interference is not a harmless experiment but could be treated as a serious criminal act.

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