GoMining says it mined a Bitcoin block using Stratum V2’s Job Declaration feature, a technical milestone that could shift more control over block construction from mining pools back to individual miners.
The company said the block was mined on June 25 through the DMND mining pool and used Stratum V2 Job Declaration to let GoMining build and submit its own block template. Follow-on reports identified the block as 955,318, describing it as the first known Bitcoin block produced in a live production environment using Stratum V2’s Job Declaration feature.
The distinction matters because most pooled Bitcoin mining today gives pool operators control over transaction selection and block-template construction. Individual miners contribute hash power and receive more stable payout distribution, but the pool typically decides which transactions are included in blocks. Stratum V2’s Job Declaration changes that relationship by allowing miners to construct their own candidate blocks while still participating in pooled mining.
GoMining said the block included transactions linked to GoBTC Pay, its open-source Bitcoin instant payments protocol. The inclusion was designed to show that miner-controlled transaction selection can support specific payment flows, rather than leaving transaction prioritization entirely to the pool operator.
Miner Control Returns to the Debate
The milestone comes amid a long-running debate over centralization in Bitcoin mining. Mining pools help smooth income for participants, but they also concentrate influence over transaction ordering, fee selection and censorship resistance. If a small number of pools control a large share of hashrate and also decide block composition, critics argue that Bitcoin’s transaction-inclusion process becomes more vulnerable to coordinated filtering or regulatory pressure.
Stratum V2 was designed to address parts of that concern. The protocol improves efficiency and security in miner-pool communication, while Job Declaration gives miners a path to select transactions themselves. In theory, that could reduce censorship risk by separating hash-rate coordination from block-template control.
The GoMining and DMND block does not mean the industry has fully adopted that model. Stratum V2 deployment remains gradual, and miners need compatible software, pool support and operational confidence before switching from older infrastructure. But a live block demonstrates that miner-built templates can work outside a lab or test environment.
Mining Infrastructure Enters New Phase
The development also has market and regulatory implications. As Bitcoin becomes more integrated with institutional finance, ETFs and public mining companies, transaction censorship and mining governance are likely to receive more scrutiny. A protocol that gives miners more control over block composition could be seen as strengthening Bitcoin’s neutrality, especially if governments or private actors pressure pools to exclude certain transactions.
For mining pools, broader adoption of Job Declaration could change their role. Pools would still coordinate payouts and aggregate hash power, but their influence over transaction selection could decline. That would make mining more decentralized at the block-construction layer while preserving the economic benefits of pooled mining.
For miners, the trade-off is operational complexity. Building block templates requires reliable infrastructure, mempool management and fee-optimization logic. Smaller miners may prefer to keep relying on pools unless the tools become easier to use.
GoMining’s block is therefore less about one reward event and more about a possible direction for Bitcoin mining architecture. If more miners adopt Stratum V2 Job Declaration, control over Bitcoin’s transaction selection could become more distributed. That would strengthen the network’s censorship-resistance argument at a time when Bitcoin’s role in global finance is becoming more visible.
