Bitcoin Mining Pool DMND Mines First Known Stratum V2 Block; GoMining Constructs Its Own Template

§ 01 Executive Snapshot

• What: Bitcoin mining pool DMND has mined the first known Bitcoin block using the Stratum V2 protocol.
• Who: DMND, GoMining, Alejandro De La Torre (CEO of DMND), Mark Zalan (CEO of GoMining).
• Why it matters: This milestone empowers individual miners with block construction control, enhancing decentralization and transaction selection in Bitcoin mining.

§ 02 Key Developments

• DMND mined Bitcoin block number 955,318 using the Stratum V2 protocol, representing a significant technical advancement.
• GoMining became the first miner to utilize Stratum V2's Job Declaration feature, allowing them to select transactions and build their own block template.
• The block mined by DMND included transactions from GoBTC Pay, an open-source Bitcoin instant payments protocol announced in May 2026.

§ 03 Strategic Context

• The traditional Bitcoin mining model has centralized transaction selection within mining pools, limiting miners' influence over which transactions are included in blocks.
• Stratum V2, developed with industry support, aims to decentralize this control by enabling miners to construct their own block templates, addressing concerns related to censorship and power distribution in Bitcoin's transaction layer.

§ 04 Strategic Implications

• Immediate implications include a shift in power dynamics within Bitcoin mining, empowering individual miners over pools in transaction selection and block construction.
• Long-term operational implications could lead to broader adoption of Stratum V2, fostering increased decentralization and resilience in the Bitcoin network.

§ 05 Risks & Constraints

• Potential risks include the slow adoption of Stratum V2 across the mining ecosystem, which could limit its impact.
• Competition among mining pools and the need for robust infrastructure to support Stratum V2 could hinder widespread implementation.

§ 06 Watchlist / Forward Signals

• Future developments to watch include the rate of Stratum V2 adoption among other mining pools and miners.
• The performance and stability of GoMining’s implementation of Stratum V2 in live environments will be critical to assess the protocol's viability and impact on the market.