GoMining's GoBTC Pay Challenges Square's Bitcoin Payment Rail

GoMining CEO Mark Zalan unveiled the GoBTC Pay software development kit (SDK) and application programming interfaces (API) on June 19, 2026, positioning the bitcoin mining company directly against Block's Square in the race to build native bitcoin payment infrastructure, with GoBTC Pay settling transactions on-chain at an average of 12 hours and charging merchants just 0.2% in transaction fees. According to CoinDesk, the company plans to recruit an initial 10 merchants as part of the rollout, with the fundamental differentiator being that receiving merchants retain bitcoin rather than having it auto-converted to fiat. This puts GoMining on a direct collision course with Jack Dorsey's Block, which operates Square's competing bitcoin payments service via the Lightning Network and converts BTC to U.S. dollars by default, meaning the receiving merchant receives payment in BTC only if it chooses to. dollars for merchants by default.

The Architecture of a Pure-BTC Payment Rail

The structural distinction GoMining is making with GoBTC Pay is not cosmetic. Where Square and most competing payment processors allow customers to pay in bitcoin while the backend silently converts that BTC into fiat before it reaches the merchant's account, GoMining's protocol keeps the entire transaction denominated in bitcoin from end to end. Merchants who want fiat must handle the conversion themselves, a deliberate design choice that places sovereignty over currency conversion back in the hands of the business rather than the payment processor.

GoBTC Pay is built on GoMining's Stratum V2 mining protocol, which is itself a significant technical detail. Stratum V2 is an upgraded mining coordination protocol designed to improve efficiency, decentralisation, and security within the Bitcoin network. By routing payment settlement through this infrastructure, GoMining embeds its payment layer directly into Bitcoin's proof-of-work settlement architecture rather than relying on a layer-2 solution like Lightning. The trade-off is settlement time: at an average of 12 hours, GoBTC Pay is slower than Lightning's near-instant confirmations, but GoMining appears to be prioritising on-chain finality and non-custodial ownership over speed.

The fee structure is built to distribute revenue across the ecosystem. The 0.2% merchant fee is split 50-50 between wallet providers and miners, a model that incentivises both infrastructure layers simultaneously. For merchants already holding BTC on their balance sheets, the value proposition is particularly direct: accept bitcoin, retain bitcoin, pay 0.2%.

What This Means for the Bitcoin Payments Competitive Landscape

Block, the fintech company co-founded by Jack Dorsey, has been building out its own bitcoin payments infrastructure over the past year. Square's service enables businesses to accept BTC via the Lightning Network, but the default behaviour converts that bitcoin into U.S. dollars before it lands in the merchant's account. This design choice reflects a calculated bet that most merchants in 2026 still want dollar-denominated revenue even if their customers prefer to transact in BTC.

GoMining is making the opposite bet. As Zalan described in an interview over Telegram, the company's philosophy is explicit: "Our idea isn't to squeeze bitcoin into the old fiat experience and lose what makes it bitcoin along the way. It's to solve the real problems with BTC payments - the high and variable fees, the slow and unpredictable settlement - while preserving non-custody and onchain finality." That framing positions GoBTC Pay not as a competitor trying to replicate Square's user experience, but as a challenger targeting the segment of merchants who are already philosophically aligned with bitcoin as a monetary asset rather than a payment medium that needs to be immediately liquidated.

The timing of the launch is notable. Crypto market sentiment is currently sitting at 23 on the Fear and Greed Index, firmly in Extreme Fear territory. Launching a merchant-facing bitcoin payment product during a period of risk-off sentiment is either a contrarian signal or a deliberate strategic move to build infrastructure during the quiet phase of the cycle - a pattern that has historically produced durable competitive moats. For deeper context on where bitcoin currently sits relative to its realised value during this market environment, see our guide on The MVRV Ratio Explained.

Background and Context: Bitcoin Payments Infrastructure in 2026

The battle for bitcoin payment infrastructure is not new, but the terms of competition have shifted. Early bitcoin payment processors like BitPay largely followed the fiat-conversion model, treating BTC as a payment input and USD as the merchant's output. The Lightning Network, championed by companies including Block and numerous Bitcoin Core developers, attempted to solve the speed and fee problem by moving small transactions off-chain while preserving on-chain settlement for final reconciliation. Lightning's adoption has grown meaningfully since 2022, but it remains a layer-2 abstraction - merchants using Square's Lightning service are still largely operating in a fiat-denominated paradigm at the accounting level.

GoBTC Pay represents a different philosophical branch: the argument that for bitcoin payments to have long-term structural significance, the merchant side of the transaction must also remain in bitcoin. This is the same reasoning that underlies corporate bitcoin treasury strategies, where the goal is not to convert BTC to fiat but to accumulate and retain it. For macro investors tracking the intersection of payment infrastructure and monetary policy, the question of whether bitcoin-native payment rails gain traction has direct implications for BTC velocity and long-term demand. For broader perspective on how crypto assets compare to traditional payment and investment instruments, WealthWatchPro investment intelligence covers the macro convergence of digital and traditional finance.

What to Watch: Merchant Adoption and Competitive Response

The immediate metric to watch is GoMining's target of 10 initial merchant integrations. The identity and scale of those first merchants will signal whether GoBTC Pay's bitcoin-native model has real commercial traction or whether it remains a niche product for ideologically aligned businesses. If GoMining recruits merchants with meaningful transaction volumes - particularly in sectors like e-commerce, digital services,