chains

In blockchain technology, a "chain" refers to a series of blocks containing data, such as transactions, linked together securely. Each block is connected to the previous one through a unique cryptographic code, creating an immutable record. This chain of blocks ensures transparency, security, and trust, as altering any part of a block would require changing all subsequent blocks, which is practically impossible. Think of it as a digital ledger that everyone can verify and trust, without needing a central authority, making it ideal for recording transactions or data securely.