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Bitcoin mining pool DMND has mined the first known Bitcoin block produced using the Stratum V2 protocol, a technical milestone that shifts control over block construction from pools to individual miners. The block — number 955,318 — was mined through DMND’s pool for GoMining, which became the first miner to use Stratum V2’s Job Declaration feature to select its own transactions and build its own block template, according to a note shared with Bitcoin Magazine.
Under the dominant model in Bitcoin mining today, miners contribute their computing power to a pool, and the pool decides which transactions go into each block. The miner has no say in that selection.
Stratum V2, an open-source protocol developed with broad industry support, changes this arrangement. It allows miners to retain their participation in pooled mining — which smooths out revenue variance — while taking back the right to construct the block template themselves. Job Declaration is the specific mechanism that makes this possible: a miner submits its own proposed block template to the pool, the pool validates it, and the miner’s version goes forward.
GoMining used that mechanism to include transactions from GoBTC Pay, an open-source, non-custodial Bitcoin instant payments protocol the company announced at Consensus Miami in May 2026. The result is the first known case of a miner using Stratum V2 in a live production environment to power its own product through the block it helped create.
“A miner just mined the first Stratum V2 block to power their own product end to end,” said Alejandro De La Torre, CEO and co-founder of DMND. “GoMining declared the template and included their GoBTC Pay payments with no pool in the way. We built DMND for exactly this.”
GoMining CEO Mark Zalan framed the significance in structural terms. “For years, mining pools have determined which transactions are included in Bitcoin blocks,” he said. “By being the first to declare our own block template and include GoBTC Pay transactions, we’re demonstrating one of the practical capabilities that Stratum V2 makes possible.”
Bitcoin miners gain transaction control
The implications extend beyond this single block. Mining pool transaction selection has been a long-standing concern in Bitcoin, both for censorship resistance and for the distribution of power over the network’s transaction layer.
If Stratum V2 adoption grows, miners — not pools — become the decision-makers on what enters the blockchain. DMND’s production deployment shows the protocol can function in a live environment, which removes one barrier to that broader adoption.
GoMining, which serves five million users and ranks among the top-ten Bitcoin miners by hashrate, operates data centers in the U.S. and internationally.
The company offers tokenized hashrate products alongside its payments and earning tools. DMND describes itself as a pool built for the Stratum V2 era, with Job Declaration running in production.
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