To say the least, Bitcoin and blockchain technology are indispensable. Bitcoin is a byproduct of Blockchain technology and both go hand in hand. However, if we talk about which is to stay longer then obviously Blockchain technology is to stay here in the long run. Blockchain technology is a revolutionary technology which is going to transform the whole financial ecosystem. We can see that the Banking system is already incorporating the blockchain technology which is proving out to be a boon. In the wake of many financial crimes happening all across the globe, blockchain technology is going to revolutionize the financial industry. On the other hand, Bitcoin is a digital currency which is in the form of a digital ledger supported by the blockchain. Bitcoin is the byproduct of the hype created in the market and the trust created in it due to its high-security feature backed by the blockchain technology. Bitcoin which is highly volatile in nature is giving a lot of people reasons to doubt its sustainability. No one knows when the bubble might burst. Yet people are risking their money in it. But what the future holds for Bitcoin, that only time will tell. So, certainly, Blockchain technology will survive the tests of time.