> ## Documentation Index
> Fetch the complete documentation index at: https://docs.prismapi.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Concepts

> Learn about the core building blocks of Prism's EVM assets analytics.

## Transfer

A **transfer** is a single ERC-20 token movement between two addresses, decoded from the `Transfer` event a token contract emits. Transfers capture the directional flow of value across a chain — who sent what, to whom, and for how much.

By decoding every ERC-20 `Transfer` event, Prism gives you a complete, unbiased view of on-chain token movement.

## Mints and Burns

ERC-20 contracts signal supply changes through the same `Transfer` event, using the zero address as the counterparty. A transfer *from* the zero address creates tokens; a transfer *to* the zero address destroys them.

Prism classifies these explicitly rather than reporting them as ordinary transfers, so you can separate real economic flow from supply changes. See [Transfer Type](/documentation/evm/assets/datasets/transfer#transfer-type).