Shortly, technologists realized that blockchains can be applied to trace other issues besides cash. In 2013, 19-yr-old Vitalik Buterin proposed Ethereum, which might document not merely currency transactions but in addition the status of Laptop applications identified as smart contracts. Nhưng chuỗi khối sử dụng 3 nguyên tắc mật mã, https://blok.news/category/bitcoin/