Arnold, who Eakin said had become legally blind due to her aggressive chemotherapy regimen, pleaded guilty to obstructing justice and tampering with evidence in June. Prosecutors say Arnold concealed a harassment citation that had been filed against one of her adult sons for fighting with her other son.
In October, Braxton sentenced her to 16 to 32 months, a term more than twice as long as the harshest state sentencing guideline for the crimes. Braxton, a traveling judge formerly assigned to Philadelphia, said he had taken Arnold's illness into account, and thought she would receive adequate care in prison.
"I am an optimist," he said at the sentencing, according to a transcript. "I want to believe that your cancer will not be one that, in fact, reacts any faster than cancers of your type would normally react."
The state Attorney General's Office, which prosecuted the case, has 30 days to file a brief. The office did not take a stance when Eakin previously asked Braxton to reconsider Arnold's sentence and bail.
A spokesman Wednesday declined to comment on the appeal. Braxton could not be reached for comment.
Superior Court has already overruled Braxton in this case. In January, an unnamed appeals judge said Braxton had not justified his decision to hike Arnold's bail from $100,000 to $1 million. The judge reversed bail to the lower amount, allowing Arnold to be free pending the appeal of her sentence.
In the brief filed Tuesday, Eakin argued that Braxton also did not justify his decision for going above state sentencing guidelines and abused his discretion by stacking the sentences for her two crimes rather than running them concurrently.
She said the judge "displayed a certain mean-spiritedness and vindictiveness" in his handling of the case.
Arnold is receiving chemotherapy and shot therapy to treat an aggressive form of breast cancer and also getting shots in her eyes in hope that her eyesight will improve, Eakin said.