Bitcoin Mining Pool Giants Foundry, Antpool and F2pool Signal Stratum V2 Shift

7 Bitcoin Mining Pools Back Stratum V2 arsenic Miners Push for Block Template Control

Antpool, F2pool, Foundry, Spiderpool, Block Inc., MARA Foundation, and DMND are present portion of the effort to beforehand the unfastened mining protocol standard. The announcement was published by Pavlenex connected the Stratum V2 Working Group’s authoritative site.

Stratum V2 replaces Stratum V1, a push-based protocol released successful 2012 by Marek “Slush” Palatinus that became the manufacture default but was ne'er designed arsenic a ceremonial standard. V1 near pools successful afloat power of transaction selection, ran successful plaintext, and exposed miners to hashrate hijacking and surveillance.

The newer protocol addresses those problems. It uses end-to-end authenticated encryption, cuts bandwidth usage by astir 60% connected the excavation broadside and 70% for miners, and introduces a Job Declaration sub-protocol that lets miners physique their ain artifact templates alternatively of accepting what pools assign.

According to the authoritative announcement, “By maintaining Stratum V2 arsenic a public, vendor-neutral specification, we region compatibility barriers and let the ecosystem to absorption connected what matters most: improving efficiency, privacy, security, and miner autonomy, yet starring to accrued profitability.”

Real-world tests from Braiins amusement miners tin seizure up to 7.4% higher profitability done faster template delivery, little latency, and improved interest enactment erstwhile moving V2 natively.

Antpool CEO Andy Zhou said the institution is “proud to enactment the broader adoption of Stratum V2,” adding that aligning astir an open, interoperable modular lets the manufacture collaborate connected efficiency, security, and decentralization. Spiderpool CTO Kenway Wang noted the protocol supports miner-constructed templates, which are particularly utile for operators successful bandwidth-constrained environments.

Braiins Pool and DMND are already moving Stratum V2 successful production. DMND launched successful 2025 arsenic 1 of the archetypal pools to connection afloat miner-selected templates. Blitzpool runs it for solo miners, and the Stratum V2 Reference Implementation assemblage excavation continues testing.

The Working Group was founded successful 2022 by Braiins and Spiral, Block’s Bitcoin exertion arm. The radical has operated for much than 4 years arsenic an autarkic open-source assemblage and is present entering “a caller signifier of accelerated improvement and deployment” with the summation of large-scale operators.

Foundry, Luxor, and Antpool had each made anterior investigating commitments oregon prepared infrastructure earlier this announcement. The 7 caller additions correspond tens of exahashes per 2nd of combined hashrate, a fig that matters due to the fact that astir 5 pools presently power astir 70% of planetary hashpower and truthful astir artifact content.

For idiosyncratic bitcoin miners, the applicable displacement depends connected erstwhile these pools alteration V2 entree for users. Translation proxies already let Stratum V1 firmware to link to V2 pools without requiring hardware oregon firmware upgrades, which reduces the obstruction to adoption.