Yes its the original one because the original one was compiled after Hazrat Muhammad died.
Quran was not compiled into book form during Hazrat Muhammad's life time. It was done after many Hafiz were martyred during battle of Yamama.
Dear vitamic c, you are simply jumping on the bandwagon here. I know why but you don't. It is because you have no idea at all as to what this revelation of God based concept is all about and how it is supposed to work. Islam was always an education based revolution by messengers of God. God sent his missionaries to try and educate people out of their ignorance about themselves as to who their creator is and why they have been created by him and how they can fulfil his creation purpose etc etc etc.
You never studied the quran as an individual in light of real world realities that is why you are a confused individual just like many others who have followed your way of looking at things which makes no sense and will never make any sense. Messengers from God come with a mission and they need supporters to carry through their missions as much as it is within their capability and jurisdiction.
Whenever a proper movement starts it needs a proper ideology to base itself upon proeprly and that was provided by God always. So all messengers of God from adam to muhammad who were sent by God were based upon same ideology ie deen of islam. So islam was not started by muhammad as many people misunderstand it. He was last of the God sent messengers and the final revelation from God for humanity was sent by God in the form of the quran via the last messenger of God.
You ask any muslim how the quran was revealed they will tell you a lot of laughable stories about it. Why? Because they never bothered to study the quran in light of real world realities just as you did not. You read books written by other people and take them for word of God and you read the word of God as a book written by a human. All confused people do this and you can look at beliefs of people to realise this. Almost all people have funny concepts about God and his revelations as well as his messengers and real world realities. So they do funny things to satisfy themselves.
They think messengers of God came to worship God just like them and you to make God happy. They have no idea as to what way of life is in general and deen of islam in particular. Had they known they will not have attributed to God, his messages and his messengers and real world realities all the nonsense they have been doing always and still do. All because they have no over all picture in their minds about this whole process that is going on in the creation of God right before their eyes.
They have no sense at all as to proof and proving things in this regard. They live a confused life and die confused yet they think they know all they need to know about things. Or that it is responsibility of someone else to tell them things which they themselves should come to know. In other words they want to be spoon fed like you. Such people are bound to remain confused and die confused due to their wrong mindset, attitude and behaviour regaring this whole process.
Deen of islam is a mission assigned by God to humanity via his messengers to them from among themselves. A messenger is always made aware by God that he has been chosen for this purpose. Look at the story of moses in the quran for example. But you cannot because you have not learned how to study the quran porperly. A messenger is clearly told by God as to what his mission is before the starting of the mission. Mission does not come in bits and pieces from God as it goes along rather it is a complete piece of information before the start of the mission. This is why a messenger of God comes to know where he has to start from and where he needs to take the mission to its completion. If one is not aware of a mission right from the start then how can he plan things about it to carry it out to fulfil it?
People who claim to be muslims have said and done many stupid things about God, the quran and messengers of God this is why their sayings an doings cannot be taken as the truth about God or his message or his messengers etc etc. This is why each and every person must do one's own research and explore deen of islam oneself to see how things make proper sense as they should.
This is why before the final messenger of God started his mission he knew the whole quran himself as it ought to be known because God had already revealed the quran to him in stages as a complete process. This is why he started to explain the mission based upon the quran to others so that if they become convinced about it, they support him and people came forth and supported him on that basis, particularly those who had nothing to lose but everything to gain.
The mission was to try and change the way of life of the people so that all who accept it could live in harmony and progress and prosper as a brotherhood of humanity instead of the few on the top of the hierarchy in a human society at the expense of all others. This is why the quran was already available for the people in written form as well as in memorisation form right from the start of the mission. All the rest of the stories are either concocted or are misunderstood or have been spread deliberately to hide actual deen of islam as is the case even today. Why people hide the true message of God today was the reason some people on the top in a society hid earlier messages from God.
This is why the stories that quran was not written down in lifetime of the final messenger. If the quran was not there to begin with, how could the mission be started by the messenger of God? No messenger of God ever started a mission without God first telling him what the mission was all about completely. This will be like putting the cart before the horse. A messenger of God is sent by God to fulfil his mission not his own some self created agenda.
If one says the quran was written down after the death of the final messenger of God then questions arise as to why or what was the need for doing that when even the final messenger of God did not saw the need to do that? In other words if the mission could be fulfilled without the quran then what was the need of having the quran? The idea that people started fighting over the differences in the actual quranic text therefore the need arose to compile an official copy of the quran is a very flawed idea. It is because if people had already differed over the quran then there was nothing there to unite them nor any way to do so.
It is because once a people end up in a dispute then they cannot be united or they need something special to overcome the dispute to unite them which is acceptable to all of them. Especially if those people killed and they were killed for the quran for decades and then suddenly they fell apart about the text of the quran, was there anything there that could unite them? There was nothing at all. This is why the stories about fighting over the text of the quran and then uniting makes no sense whatsoever. Only stupid people will invent and accept such nonsense. All these stories seem to be inventions by palace mullahs etc on behest of rulers who wanted to keep the quran or deen of islam out of their way. This is why deen of islam became religion of islam according to them.
Another thing people need to realise is that the quran was not available just to muslims among muslims but also to muslims who lived among nonmuislims as well. How could those wrong copies be destroyed? Also if people really thought the copies they had were true copies of the quran then no way they could have given them up or would not have hid them from others. As for the idea that quran was not availble in written form because there was no paper available etc etc. This too makes no sense because among muslims lived jews and christians and zoroastrians etc who had their scriptures written down. So could muslims not find things to write down the quran upon?
So you can see why I cannot accept senseless stories which you are hiding behind. All these stories try to mask the vital importance of the quran as we have it. Yet they fail very badly. So you need to do much better than just throw up nonsense ideas of others that have not been actually scrutinised properly by muslims at large yet. The day they do they will come to realise how wrong those explanations are and how they try to undermine authenticity of the quranic text in a subtle way.
regards and all the best