Blockchain technology is revolutionizing the way in which information is stored and shared. It facilitates the creation of a distributed public ledger of transactions that is transparent, secure, self-validating, and cannot be forged.
Tampering or tinkering with the data is impossible as a copy exists with every user or participating nodes.
With diverse applications in numerous industry sectors from maintaining land records, establishing identity, banking industry, making academic 
credentials universally recognizable and verifiable,real estate, voting, Internet of Things, healthcare and many more, blockchain technology is disrupting the existing practices across various industry verticals.
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"Tampering or tinkering with the data is impossible as a copy exists with every user or participating nodes." This information is not really correct. Current blockchain technology is vunerable to the 51% attack and quantum computing. Tampering the blockchain is possible, however, it's too expensive for anybody to attempt with current technology