What is BRC-20?

BRC-20 is an experimental token standard built on the Bitcoin blockchain that allows users to create and transfer fungible tokens using Ordinals and inscriptions. Unlike traditional tokens on Ethereum (like ERC-20), BRC-20 does not rely on smart contracts but instead uses Bitcoin’s existing infrastructure in a creative way.

In simple terms, BRC-20 enables the creation of tokens on Bitcoin by writing data directly onto individual satoshis (the smallest unit of Bitcoin). This is done through a process called inscription, where information such as token supply, minting rules, and transfers is recorded on-chain.

The BRC-20 standard was introduced in 2023 as an experiment to expand Bitcoin’s functionality beyond simple value transfer. It allows users to deploy tokens, mint them, and transfer them, all while staying within the Bitcoin ecosystem.

However, BRC-20 works very differently from standards like ERC-20. Since Bitcoin does not support smart contracts in the same way Ethereum does, BRC-20 tokens rely on off-chain indexing systems to track balances and transactions. This means that external tools are needed to interpret the data correctly.

Some key characteristics of BRC-20 include:

• It is built on Bitcoin using Ordinals
• It does not use smart contracts
• It relies on inscriptions and indexing
• It is still experimental and evolving
  

BRC-20 tokens gained popularity due to their novelty and the growing interest in expanding Bitcoin’s use cases. Many tokens created under this standard are speculative and driven by community hype rather than strong utility.

There are also limitations and risks. The system can be inefficient, as it increases network congestion and transaction fees on Bitcoin. Additionally, because it depends on external indexers, there can be inconsistencies or reliability issues.

In conclusion, BRC-20 is an experimental token standard that brings token creation to the Bitcoin network using inscriptions. While innovative, it is still early-stage and should be approached with caution.

Key takeaway: BRC-20 expands Bitcoin’s capabilities—but it remains experimental and highly speculative.