Run a node

Download a binary, or build from source.

Official binaries are published on GitHub Releases. Building from tagged source remains the path if you want to verify the software yourself.

Mainnet live

Bitcoin Purity mainnet launched at 10:00 UTC on 19 August 2026.

Release

v1.0.0rc3

Release candidate

Bitcoin Purity now uses its own MAJOR.MINOR.PATCH version series (for example v1.0.0, v1.0.0rc3). This is independent of the upstream Bitcoin Knots version. Current build: 1.0.0rc3, based on Bitcoin Knots 29.4.0 (Bitcoin Core consensus baseline 29.4).

Official release for mainnet. Download binaries from v1.0.0rc3 (opens in a new tab), or clone v1.0.0rc3 (opens in a new tab) and build it yourself. See doc/VERSION.md (opens in a new tab) for the full versioning convention.

Activation block

Height

961637

0000000000000000003ea74f4dafdda7ed4e02c4c1ccb9768e0ca4f9e1a35159

Mainnet activation is hardcoded at height 961637. The block hash above is consensus-pinned; a different block at this height is invalid. If an existing block index contains a conflicting block after upgrading, restart with -reindex.

Trial solo pool

For high hash rate miners · port 3333

stratum+tcp://pool.bitcoinpurity.org:3333

mindiff=25M · startdiff=100M · maxdiff=0

For low hash rate miners · port 4444

stratum+tcp://pool.bitcoinpurity.org:4444

mindiff=200K · startdiff=500K · maxdiff=1100K

Option one

Download binaries

Pre-built packages for common platforms are attached to release v1.0.0rc3 (release candidate). Prefer verifying checksums from the release page before you run anything.

Binaries remain bitcoind, bitcoin-qt, bitcoin-cli. The default data directory remains ~/.bitcoin. A full node stores the history of Bitcoin transactions and requires several hundred gigabytes or more of disk space. Initial synchronization can take hours to days.

Download v1.0.0rc3 (opens in a new tab)

github.com/saltduck/bitcoinpurity/releases/tag/v1.0.0rc3 (opens in a new tab)

Option two

Build from source

Clone tagged source v1.0.0rc3 and build it. Platform-specific dependency notes live in the repository and are linked below.

Clone

Git clone

git clone https://github.com/saltduck/bitcoinpurity.git
cd bitcoinpurity
git checkout v1.0.0rc3

Build

The repository uses CMake. This page does not invent package names beyond what those documents describe.

Unix CMake

cmake -B build
cmake --build build

Full notes: doc/build-unix.md. Debian/Ubuntu and Fedora dependency lists live in that file. Open in the repository (opens in a new tab)

After building

Built binaries are typically under build/bin/. Run bitcoind or bitcoin-qt. Use bitcoin-cli to talk to a running node.

Optional install

cmake --install build

Activation and upgrades

Mainnet Purity activation is hardcoded at block 961637. No activation parameter or datadir lock file is required.

Consensus-pinned activation block hash

0000000000000000003ea74f4dafdda7ed4e02c4c1ccb9768e0ca4f9e1a35159

Any other block at height 961637 is invalid under consensus, independently of -checkpoints=0. If an existing block index contains a conflicting block from software used before this pin was enforced, restart with -reindex to rebuild it.

Consensus specification (opens in a new tab) · Setup and build docs (opens in a new tab)