Blockchain - Wikipedia
Blockchain formation. The main chain (black) consists of the longest series of blocks from the genesis block (green) to the current block. Orphan blocks (purple) exist outside of the main …
What is blockchain? - IBM
Blockchain is a shared, immutable digital ledger, enabling the recording of transactions and the tracking of assets within a business network and providing a single source of truth.
What Is Blockchain and How Does It Work? | Britannica Money
Blockchain is a distributed ledger database system whose technologies can change the way businesses and governments operate. The capacity to make transactions without …
What is Blockchain Technology, and How Does It Work?
Dec 30, 2025 · Blockchain technology is a decentralized digital ledger that records transactions across multiple computers in a way that ensures security, transparency, and immutability. …
What is Blockchain Technology ? The Ultimate Guide
Nov 4, 2017 · In this guide, we’ll unpack what blockchain technology really is, how it works under the hood, where it’s being used today, and what the future holds for this revolutionary technology.
Blockchain Facts: What Is It, How It Works, and How It Can Be Used
Dec 27, 2025 · Blockchain is a decentralized digital database or ledger that securely stores records across a network of computers in a way that is transparent, immutable, and resistant …
Blockchain: What It Is, How It Works, Why It Matters - Built In
Aug 13, 2025 · Blockchain technology is a decentralized, distributed ledger that stores the record of ownership of digital assets. Any data stored on blockchain is unable to be modified, making …
What is Blockchain Technology? The Future of Data Security and …
Mar 30, 2025 · At its core, blockchain is a decentralized, distributed ledger technology that provides a transparent, immutable, and secure method of recording transactions and …
What is blockchain? Definition, examples and how it works
Jan 30, 2025 · Blockchain is a distributed ledger technology (DLT) that's shared across a network of computers to keep a digital record of transactions. Blockchain is known for its role in …
What is blockchain technology? | McKinsey
Jun 6, 2024 · Put simply, blockchain is a technology that enables the secure sharing of information. Data, obviously, is stored in a database. Transactions are recorded in an account …