Blockchain Technology and Cryptocurrencies
Bitcoin is first cryptocurrency that challenged banks and brought widespread lighting into blockchain technology usage.
To change or delete somethhing on blockchain you need to control over 50% of network hashing power.
It’s easier, convinient, faster and more effective to reach consensus in decentralized way.
Blockchain technology makes different assets, activities, events etc.. tracking more easier and accurate.
Once something has occured on blockchain it has occured. To erase history you need more than just a eraser.
blockchain security ensures its high availability, which is difficult to turn off.