Distributed ledger technology has evolved significantly beyond its early application as the foundation of digital currency. Now, blockchain is finding use across many industries to solve real-world challenges.
In essence, a blockchain is a distributed record system that maintains a perpetually extending list of records, called blocks. Each block holds a cryptographic hash of the previous block, creating an tamper-proof chain.
Smart contracts constitute one of the most transformative features of distributed ledgers. Such automatically executing contracts instantly carry out the conditions of an contract when predefined requirements are satisfied.
The financial sector has been one of the first users of Web3. DeFi platforms allow peer-to-peer lending without traditional financial intermediaries.
While the potential is significant, blockchain faces meaningful challenges. Processing capacity, energy consumption, and legal ambiguity continue to be important issues that must be solved before mainstream use is achieved.