Bitcoin PurityBitcoin Purity
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For miners

Keep hashing Bitcoin.

SHA256d remains the proof-of-work algorithm. Existing SHA256 hardware is not intentionally invalidated by an algorithm switch.

UNCHANGED

ASERT is intended to allow difficulty to track changing available hash rate after activation. Purity retains Bitcoin’s 10-minute target interval (600 seconds).

Mining involves substantial technical and economic risk. This page does not promise returns. Miners can use the hosted trial solo pool, SmartPool, or run DATUM on their own Purity node. Verify the endpoint and payout settings before committing hash rate.

The design avoids unnecessarily invalidating existing SHA256 mining investment as part of the fork. That is not a guarantee that every miner is protected from economic loss.

PoW
SHA256d
DAA after activation
aserti3-1d
Half-life
24 hours
Anchor
enforcement-chain 961632
Activation height
961637
Activation block hash
0000000000000000003ea74f4dafdda7ed4e02c4c1ccb9768e0ca4f9e1a35159
Mainnet launch

Partner pools

Independent solo pools that operators may point SHA256d hardware at. These are third-party services — verify each endpoint independently before committing hash rate.

Competitiously solo pool

Stratum
stratum+tcp://stratum.competitiously.com:4444

Mole solo pool

Stratum
stratum+tcp://ru.molepool.com:5021
stratum+tcp://eu.molepool.com:5021

Mining options

Choose a hosted pool or let your own Purity node build work for your miners.

Hosted solo mining

Trial solo pool

Point SHA256d miners to the Purity trial pool. Choose the endpoint that fits your hardware.

High hash rate · port 3333

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

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

Low hash rate · port 4444

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

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

Shared Stratum gateway

SmartPool

Use the main listener first, then configure the backup and emergency listeners as miner failover endpoints.

Main
stratum+tcp://smartpool-a.bitcoinpurity.org:3333
Backup
stratum+tcp://smartpool-b.bitcoinpurity.org:3333
Emergency
stratum+tcp://smartpool-a.bitcoinpurity.org:3433

Self-hosted solo mining

Embedded DATUM gateway

Purity can serve Stratum V1 miners from its embedded DATUM gateway. The node builds the work and pays valid block candidates to the Purity address configured on the node.

Enable DATUM in the node's options, set a payout address, and point miners on your network to:

stratum+tcp://<node-ip>:23334

Port 23334 is the default. The default listener is local-only (127.0.0.1). For LAN miners, bind to a trusted interface and enable Stratum authentication before allowing network access.

DATUM Gateway project → (opens in a new tab)
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