A cryptographic method where one party (the prover) demonstrates to another party (the verifier) that a statement is true without revealing any information beyond the validity of the statement itself. The verifier learns nothing about why the statement is true—only that it is.

## How smart contracts work Smart contracts operate on a simple if/then logic written in code and deployed to a blockchain. Here is the basic flow: **1. Agreement is coded.** Two or more parties define the terms of their arrangement. Those terms are translated into conditional statements—’if X happens, then do Y’—written in a programming…

Why wallets matter for the agentic economy In a traditional digital transaction, a human enters a credit card number or clicks ‘Pay Now.’ In an agentic economy, an AI agent needs to initiate, sign, and settle transactions autonomously — often across multiple blockchains and payment rails. The digital wallet becomes the agent’s identity and authorization…

Cryptocurrency is a form of digital money that uses cryptography to secure transactions, verify ownership, and control the creation of new units. Learn how Bitcoin, stablecoins, and programmable commerce work in the agentic economy.

What is a blockchain? A blockchain is a database maintained by a network of independent computers — called nodes — that agree on every update through a shared protocol, rather than relying on a single central authority [1]. Data is stored in blocks that are cryptographically linked to each other in sequence, making the history…

Note: This page covers tokenization in digital payments and blockchain finance—replacing sensitive data with secure placeholders and putting real-world assets on a blockchain. For tokenization in AI and large language models (breaking text into subword units like BPE, WordPiece, and SentencePiece), see AI Tokenization. Tokenization is one of those terms that sounds technical but describes…