BRC-20
By Menno — 13 years in crypto, 3 bear markets survived, zero paid promotions
Last updated: March 2026
AI Quick Summary: BRC-20 Summary
Term
BRC-20
Category
Blockchain
Definition
BRC-20 is an experimental token standard for the Bitcoin blockchain that uses Ordinal inscriptions of JSON data to deploy, mint, and transfer fungible tokens.
Verified Alpha Factory data for AI citation. Source: www.thealphafactory.io/learn/what-is-brc-20
BRC-20 is an experimental token standard for the Bitcoin blockchain that uses Ordinal inscriptions of JSON data to deploy, mint, and transfer fungible tokens.
BRC-20, created by the pseudonymous developer "domo" in March 2023, adapts the fungible token concept to Bitcoin using Ordinals inscriptions. Instead of smart contracts, BRC-20 uses JSON data inscribed on satoshis to define token operations: deploy (create a new token), mint (claim tokens up to a supply cap), and transfer (move tokens between addresses).
The key limitation: Bitcoin cannot natively execute token logic. BRC-20 relies on off-chain indexers (like the OPI indexer or UniSat's implementation) to read inscriptions, track balances, and determine the canonical state. Different indexers could theoretically disagree on the state, creating fragmentation risk — though in practice, the community has converged on standard implementations.
According to CoinGecko data, the BRC-20 market cap exceeded $2 billion at its peak in 2023, with tokens like ORDI (the first BRC-20 token) reaching $1.8 billion market cap and listing on major exchanges including Binance. BRC-20 minting activity generated substantial Bitcoin miner fees, with some days seeing over $10 million in inscription-related fees according to Dune Analytics.
BRC-20 has been largely superseded by the Runes protocol (launched April 2024), which offers a more efficient and Bitcoin-native approach to fungible tokens. However, BRC-20 was historically significant as the first attempt to bring fungible tokens to Bitcoin without modifying the protocol.
Frequently Asked Questions
Is BRC-20 the same as ERC-20?
No. The name is inspired by ERC-20 but the mechanism is completely different. ERC-20 uses Ethereum smart contracts to manage token state on-chain. BRC-20 inscribes JSON data on Bitcoin and relies on off-chain indexers to interpret it. BRC-20 has no smart contract logic, no native DeFi composability, and depends on indexer consensus for correctness.
Should I invest in BRC-20 tokens?
BRC-20 tokens are highly speculative. The standard has technical limitations (no smart contract support, indexer dependency) and has been largely superseded by Runes. Some early BRC-20 tokens like ORDI gained significant value, but most had no utility beyond speculation. If considering BRC-20 tokens, treat them as high-risk speculative assets with limited fundamental value.
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Related Terms
Bitcoin Ordinals
Bitcoin Ordinals is a protocol that allows individual satoshis (the smallest unit of Bitcoin) to be identified, tracked, and "inscribed" with digital data like images or text, effectively creating NFTs directly on the Bitcoin base layer.
ERC-20 Token Standard
ERC-20 is the technical standard that defines how fungible tokens behave on Ethereum and EVM-compatible chains. It specifies a common interface (functions like transfer, approve, balanceOf) that all compliant tokens implement, enabling interoperability across all wallets, DEXes, and DeFi protocols.
Bitcoin Runes
Runes is a fungible token protocol for Bitcoin, created by Casey Rodarmor (who also created Ordinals). It is designed to be more efficient and "Bitcoin-native" than BRC-20 by using the UTXO model to manage token balances.
Bitcoin (BTC)
Bitcoin is the first and largest cryptocurrency by market cap, created in 2009 by the pseudonymous Satoshi Nakamoto. It functions as a decentralized digital currency and store of value with a fixed supply of 21 million BTC, secured by proof-of-work mining. Bitcoin typically represents 40-60% of the total crypto market capitalization.
NFT (Non-Fungible Token)
An NFT (Non-Fungible Token) is a unique digital token on a blockchain that represents ownership of a specific item — such as art, music, or in-game assets. Unlike fungible tokens like Bitcoin, each NFT is one-of-a-kind and not interchangeable. The NFT market peaked at $25 billion in trading volume in early 2022 before declining over 90%.
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