Protocol

Stratum V2 Bitcoin Mining Pool

Blitzpool natively supports the next-generation Stratum V2 mining protocol. Encrypted connections, binary framing, and decentralized job declaration — all auto-detected on the same ports you already use.

Encrypted by Default

All communication is encrypted via the Noise Protocol framework. No separate SSL port needed — privacy is built in.

Binary Protocol

Compact binary framing replaces JSON text. Less bandwidth, lower latency, faster share submissions.

Job Declaration

Miners can propose their own block templates — choose which transactions to include and help decentralize Bitcoin mining.

Zero Configuration

Same ports as Stratum V1. The pool auto-detects the protocol. Just point your SV2-capable miner at the pool and go.

Connect

Connection

Use the same connection details as Stratum V1. The pool automatically detects whether your miner speaks V1 or V2.

Standard connection — point your miner here:

stratum+tcp://blitzpool.yourdevice.ch:3333

Protocol is auto-detected — no special configuration required

Some devices require the stratum2+tcp:// scheme:

stratum2+tcp://blitzpool.yourdevice.ch:3333

Pool Authority Public Key — verifies that you are connecting to the correct pool:

9bCoFxTszKCuffyywH5uS5o6WcU4vsjTH2axxc7wE86y2HhvULU

BraiinsOS — expects the authority key embedded directly in the URL path:

Solo mining:

stratum2+tcp://blitzpool.yourdevice.ch:3333/9bCoFxTszKCuffyywH5uS5o6WcU4vsjTH2axxc7wE86y2HhvULU

PPLNS mining:

stratum2+tcp://blitzpool.yourdevice.ch:3340/9bCoFxTszKCuffyywH5uS5o6WcU4vsjTH2axxc7wE86y2HhvULU

Job Declaration

Job Declaration Protocol

Job Declaration (JD) is the part of Stratum V2 that lets miners build their own block templates instead of taking the pool's. You choose which transactions go into the block you mine — decentralizing transaction selection and strengthening Bitcoin's censorship resistance.

On Blitzpool, Job Declaration is supported for PPLNS and Group-Solo.

Job Declaration endpoint — Port 3335:

blitzpool.yourdevice.ch:3335

Uses the same Pool Authority Public Key shown above.