In terms of exploiting a blockchain itself ... 51% attacks are possible because, in most cases, only a simple majority of a network’s nodes need to be in consensus in order make changes.

In simple terms, using blockchain technology, virtually (no pun intended) all transactions can be recorded, persisted and protected. The "economic transactions" part is important because ...

Blockchain technology is a secure ledger system ... The architecture has many different uses, and relatively simple cryptocurrencies in the Bitcoin mold only scratch the surface of what this ...

simple transactions. A mining node participates in the cryptocurrency mining process. Mining nodes are selected based on the blockchain's consensus mechanism. For example, with proof of work ...

Simple Proof leverages Bitcoin Core developer Peter Todd’s OpenTimestamps protocol, which utilizes hash functions to timestamp information onto the immutable blockchain. Cordón describes the process ...

With its complex but strong theoretical foundation, blockchain is expected to shift paradigms in data structures and application design. In simple terms, a blockchain is a distributed ledger that ...

"[A smart contract] is a self-executing contract with the terms of the agreement directly written into lines of code on the blockchain," Gabel explains. This allows them to execute once the terms ...