ERC-1155

Key points

• ERC-1155 is a token standard on the Ethereum network that allows managing multiple token types within a single contract.
• It combines, in the same standard, fungible and non-fungible assets, which previously required separate standards.
• It is widely used in games and digital collections, where many different items need to be managed efficiently.

What is ERC-1155?

ERC-1155 is a token standard created for the Ethereum network that stands out for its versatility. While earlier standards handled fungible tokens, whose units are identical, and non-fungible tokens, whose units are unique, separately, ERC-1155 allows both to be handled within a single contract. This makes it especially useful when a project needs to manage many different types of items.

How it works

The core idea is that a single ERC-1155 contract can define multiple tokens at once, each with its own characteristics. A token within this contract can be fungible, existing as many identical copies, or non-fungible, existing as a single unique unit. So instead of creating a separate contract for each asset, a project brings them all together under one structure, which simplifies management and reduces costs.

This efficiency is clearly visible in games. A game may have in-game currency, which is fungible, and rare, unique items, which are non-fungible, along with many intermediate objects. With ERC-1155, all these assets can be managed by a single contract, and operations involving multiple items at once, such as transferring a set of objects together, become more cost-effective than they would be with separate standards.

The standard maintains compatibility with the ecosystem, allowing wallets and services that support it to recognize and handle these tokens. Like any standard, ERC-1155 defines the technical behavior of tokens, but says nothing about the value or quality of the assets built on top of it. The choice between it and other standards depends on each project's needs.

Understanding ERC-1155 helps in understanding how applications with many digital items organize their assets.

Why it matters

Understanding ERC-1155 helps in understanding how games and digital collections efficiently manage many types of assets and why they combine fungible and non-fungible tokens. For those integrating these assets, knowing the standard indicates compatibility. This is a technical concept and does not represent any trading recommendation.

Risks and limitations

Following ERC-1155 ensures compatibility and efficiency, but does not attest to the value or security of the assets built on top of it. Its flexibility adds complexity, which requires careful implementation to avoid errors. The standard is specific to compatible networks and does not make these tokens circulate directly on other blockchains. None of this represents a trading recommendation.