background lines

One giant leap
for efficient mining

Stratum V2 improves how miners, pools, and the Bitcoin network communicate. It secures mining with end-to-end encryption and makes it more efficient by reducing bandwidth and latency.

The Centralization Crisis in Bitcoin Mining

A few mining pools now dominate Bitcoin's block space, with some smaller pools provenly acting as their proxies. Pools have the ability to selectively include or exclude transactions, creating the risk of a permissioned system where some transactions could be blacklisted, undermining Bitcoin's core properties.

Proprietary mining software and hardware vendor lock-ins further worsen the issue, stifling innovation and trapping miners within closed, centralized ecosystems.

Accelerating Mining with Stratum V2

Miners Select Transaction
Stratum V2 empowers miners to choose which transactions to include, shifting them from passive hashers to active participants in securing the network.
Modular & Developer-Friendly
Stratum V2 offers a free, open-source, modular infrastructure with permissive license, empowering developers to build and innovate.
Interoperable & Neutral
Community-driven governance and clear specifications ensure interoperability, preventing vendor lock-ins and fragmentation.

Enhanced Security

Legacy mining protocols transmit data in plaintext, exposing miners to man-in-the-middle attacks and hashrate hijacking. Stratum V2 uses end-to-end encryption by default, protecting miners from theft and securing their profits.

Stratum V1
Stratum V2
["myWorkerName", "mypwd"]
🔒 a7x9•••f3d2

Plaintext - vulnerable to interception & hashrate stealing

End-to-end encryption protects sensitive data & profit

Faster & Lighter

Stratum V2 replaces the verbose JSON messages used by Stratum V1 with a compact binary protocol, leading to ~70% reductions in bandwidth usage.

Ultra-Low Job Latency

SV1
228 ms
SV2 (No JD)
57.7 ms
SV2 (With JD)
2.44 ms
060120180240milliseconds

Reduced Bandwidth Usage

TX (Miner)RX (Miner)TX (Pool)RX (Pool)04590135180bytes/sec
  • SV1
  • SV2 (No JD)

Faster Block Change & Propagation

Improves profitability by increasing the likelihood that a miner's block is accepted first, especially during chain-split races. SV1 miners lose approximately 308.37 milliseconds per block due to block change latency. Over a year, this adds up to about 4.5 hours of completely unproductive mining time.

Stratum V1

~96.3ms propagation

~344ms block change

Stratum V2

~3.44ms propagation

~2.63ms block change

Control Your Revenue

Take charge of your mining operation. Don't let pools decide which transactions make it into blocks or trust them to share all fee revenue.

Current Reality

Pools control transaction selection, potentially hiding high-fee transactions and making out-of-band deals

Fee Rate30 sat/vB
0.00060000 BTC
Fee Rate25 sat/vB
0.00055000 BTC
Fee Rate20 sat/vB
0.00035000 BTC
Fee Rate15 sat/vB
0.00045000 BTC
Fee Rate10 sat/vB
0.00025000 BTC
Hidden
Fee Rate10 sat/vB
0.00015000 BTC
Hidden
Total Fees0.00135000 BTC

With Stratum V2

Select your transactions, maximize your revenue, and maintain full control

Fee Rate30 sat/vB
0.00060000 BTC
Fee Rate25 sat/vB
0.00055000 BTC
Fee Rate20 sat/vB
0.00035000 BTC
Fee Rate15 sat/vB
0.00045000 BTC
Fee Rate10 sat/vB
0.00025000 BTC
Fee Rate10 sat/vB
0.00015000 BTC
Total Fees0.00000000 BTC

Firmware upgrade not necessary

Connect your SV1 firmware devices through Translation Proxy which facilitates the conversion of SV1 messages to SV2 for communication with an SV2 pool.

SV1
SV1
SV1

SV1→SV2 Translation Proxy

SV2 Mining Pool

Built by the Community

Open Source

All code is open source and available on GitHub. Contribute to the protocol's development and help shape the future of Bitcoin mining.

Community Driven

Decisions are made collectively by the community. No single entity controls the direction of the protocol.

Support for

Stratum V2

Join the collective effort and help us accelerate Bitcoin mining!

DemandHuman Rights FoundationOpenSatsSpiralDemandHuman Rights FoundationOpenSatsSpiralDemandHuman Rights FoundationOpenSatsSpiral
HUT8Stratum V2VinteumBraiinsHUT8Stratum V2VinteumBraiinsHUT8Stratum V2VinteumBraiins
BitmexSummer of BitcoinGalaxyFoundryBitmexSummer of BitcoinGalaxyFoundryBitmexSummer of BitcoinGalaxyFoundry