There were different versions of Quaran according to Hadiths. When Uthman ordered to burn the version of Quaran that existed in Iraq and Sham, Abdullah ibn Masud, whom Muhammad himself testified as the most excellent teacher of Quaran, asked those Muslims to hide/protect their Qurans from Uthman burning it. Abdullah ibn Masud was so confident of the authenticity of the version he had that he appealed to those Muslims that they could stand in front of Allah with the version they had on Judgement day.
Quran you have in your home is Uthman's version, which is a corrupted copy according to Abdullah ibn Masud.
Here are some Hadiths supporting what I just said:
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The following is the report in the Sahih of Al– Bukhari:
Anas bin Malik narrated :
So, `Uthman sent a message to Hafsah saying, ‘Send us the manuscripts of the Qur’an so that we may compile the Qur’anic materials in perfect copies and return the manuscripts to you’. Hafsah sent it to `Uthman.
`Uthman then ordered Zayd ibn Thabit, `Abdullah ibn Az-Zubair, Sa`id ibn AlAss and `Abdur Rahman ibn Harith ibn Hisham to rewrite the manuscripts in perfect copies.
`Uthman said to the three Quraishi men, ‘In case you disagree with Zayd ibn Thabit on any point in the Qur’an, then write it in the dialect of Quraish as the Qur’an was revealed in their tongue’.
They did so, and when they had written many copies, `Uthman ibn `Affan returned the original manuscripts to Hafsah.
`Uthman sent to every Muslim province one copy of what they had copied, and ordered that all the other Qur’anic materials whether written in fragmentary manuscripts or whole copies, be burnt.
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Abdullah ibn Masud was a companion of the Islamic prophet Muhammad who he is regarded as the greatest mufassir of Quran of his time asked those Muslims to hide/protect their Qurans from Uthman burning it.
Jami’ Tirmidhi, hadith 3104:
“Abdullah bin Mas’ud disliked Zaid bin Thabit copying the Musahif, and he said: ‘O you Muslim people! Avoid copying the Mushaf and recitation of this man. By Allah! When I accepted Islam he was but in the loins of a disbelieving man’–meaning Zaid bin Thabit–and it was regarding this that Abdullah bin Mas’ud said: ‘O people of Al-Iraq! Keep the Musahif that are with you, and conceal them. For indeed Allah said: And whoever conceals something, he shall come with what he concealed on the Day of Judgement. So meet Allah with the Musahif.'” (Jami’ Tirmidhi, hadith 3104)