BRC20 Phase 2 Status Update
Good morning, BRC20 & BRC2.0 community,
TL;DR
- BRC20 lead maintainers Best in Slot (BiS) and Unisat are advancing preparations for the Phase II upgrade, which will enable all 4–5 character BRC20 tokens to become programmable with BRC2.0.
- BiS engineers are collaborating with OKX engineers to ensure a smooth upgrade.
- UniSat team is working on improving data consistency, strengthening overall stability, and conducting stress testing.
- BiS, together with L1F & Unisat, will announce the Phase II upgrade block height and estimated date, once engineering teams provide a clear estimation.
- The BRC2.0 upgrade positions the BRC20 protocol at the center of Bitcoin DeFi, shifting Bitcoin from Digital Gold to Programmable Gold.
Phase I Overview
Phase I of the BRC2.0 upgrade has been running flawlessly. Within the first month of BRC2.0 launch, 161 smart contracts have been inscribed on Bitcoin with over 19,000 transactions.
The first independent security audit of the BRC2.0 upgrade has also been completed by @thesis_defense. The full audit report can be viewed here: (link).
Open-Source Developer Tooling is advancing in parallel:
- Brc20.build — serving as the on-ramp for developers.
- explorer.brc20.build — provides full visibility into contracts, transactions, and on-chain activity.
- Rpc.brc20.build — Public RPC for BRC2.0 (+ rpc-signet.brc20.build for Signet)
- BRC2.0 Balance Tracker — tracks and stores BRC2.0 balances in a database for use in any API.
- Command Minter — integrates with familiar EVM tools (Foundry, Ethers) to handle Bitcoin-specific tasks (inscriptions, tx creation, fee tracking, etc.), enabling seamless use of existing EVM workflows on BRC2.0.
- OPI — the canonical indexer for BRC2.0 and the most widely adopted BRC20 indexer, is already prepared for the upgrade, with more than 100 teams relying on it.
More importantly, there is a strong organic inflow of talented builders and quality projects entering the BRC2.0 ecosystem. Interest is also expanding beyond the core community, with incubators, investors, market makers and EVM-native teams, actively engaging and exploring opportunities on Bitcoin.
Coordinating BRC20 Phase II Upgrade
As lead maintainers, BiS and Unisat are advancing preparations and security checks for the Phase II upgrade. Every BRC20 service provider has its own infrastructure realities, and we are assisting teams across the ecosystem to ensure readiness for this big transition.
BiS engineers are working with the OKX team to integrate BRC2.0 capabilities into their indexer, supporting a smooth upgrade for both exchange and wallet services.
Although neither party can give an exact date, a brief roadmap is below:
- BiS will submit a PR to OKX’s indexer github repo: https://github.com/okx/ord
- OKX will review, test, and merge the upgrade.
- Final validation across services.
We will share another brief update once the GitHub PR is submitted.
Other ecosystem participants are also preparing in parallel, and BiS will continue providing support to facilitate a seamless rollout. We encourage all BRC20 service providers to upgrade to the latest version of OPI, to ensure full compatibility and alignment during Phase II.
When Phase II?
BiS, together with L1F and Unisat, will announce the final date and block height for the Phase II upgrade once engineering teams confirm stability and integration readiness. While we cannot provide an exact timeline, the BRC20 Phase II upgrade is firmly on track.
The objective is a smooth transition that preserves the robustness of BRC20, avoids fragmentation, and allows the entire ecosystem to move forward together without disruption.
The vision is clear: programmable Bitcoin-native assets are a new asset class with hundreds of billions in market potential and with the BRC2.0 upgrade, BRC20 is positioned at the center of Bitcoin DeFi. Opportunities are abundant, and we are proud to build alongside the many teams shaping this vision.
Thank you for your support, BiS Team
