DMND Mines the First Known Bitcoin Block Using Stratum V2 Job Declaration

DMND has mined the first known Bitcoin block produced using Stratum V2 Job Declaration. Block 955,318 was mined on mainnet for GoMining, who became the first miner to build and declare its own block template and have it mined through a pool.

This is the part that matters. For most of Bitcoin's history, the mining pool has decided which transactions go into a block. Miners point their hashrate at the pool, the pool builds the template, and the miner mines whatever the pool hands them. Stratum V2 Job Declaration changes that relationship. The miner constructs its own block template, declares it to the pool, and the pool validates and coordinates the work without dictating its contents. The miner keeps the economics and convenience of pooled mining while taking back control of what goes into the block.

GoMining used that control for a real purpose. Rather than mining a generic template, they built one that included transactions from GoBTC Pay, their own open source Bitcoin instant payments protocol. The result is an end to end demonstration: a miner declaring its own template and using it to power its own product, all the way to a confirmed block on mainnet. This was not a test environment or a simulation. It is block 955,318, visible to anyone on the public chain.

Job Declaration is one of the core reasons Stratum V2 was built. Alongside its security and efficiency improvements, the protocol was designed to let miners create their own block templates while still mining in a pool. Until now that capability has lived mostly in specifications and test setups. Mining a real block this way shows it works in production.

DMND was built specifically for this. Our pool runs Stratum V2 with a Job Declarator so that miners who want to construct their own templates can do so without leaving pooled mining behind. The team's roots are in SRI, the open source Stratum V2 reference implementation, and that work is what made a block like this possible.

We see this as an early step toward a more decentralized mining landscape, where template construction sits with miners rather than concentrating in a handful of pools. Block 955,318 is the first. We expect it will not be the last.

View the block: https://mempool.space/block/00000000000000000001a5bae00659902a120ea02bed9046aaf56651f673d5f6