Network verification status (15 October 2026): Changes to peer discovery and address sharing are included. Resolution of the previously reported Android connection-count discrepancy has not yet been confirmed with more than four reachable, distinct nodes in the live public network.

SUMUWW — Open Connections, Greater Tomorrow.

One step. New possibilities.

Create your own wallet, send and receive coins, and take part in the blockchain network through mining.

Built on its own blockchain and independently verified by its participants, SUMUWW is a cryptocurrency shaped by the people who use it.

About SUMUWW

SUMUWW is a peer-to-peer cryptocurrency powered by Proof of Work (PoW) mining and independent validation by each node.

Validated transactions are recorded on SUMUWW’s own blockchain once they are included in a block. Participants follow the same consensus rules to verify transactions and blocks for themselves.

SUMUWW aims to sustain an independent blockchain network through participant validation and consensus, without requiring individual approval from a central administrator.

Key Features

Your Wallet, Your Transactions

Create your own wallet and sign transactions using your private key. Send and receive SMW without individual approval from a central administrator. Transactions are verified by the network before being recorded on the blockchain.

Proof of Work Mining

Use your device to perform Proof of Work calculations and participate in creating new blocks. Miners who produce valid blocks receive rewards according to the network’s rules.

An Independent Blockchain with Node Validation

SUMUWW runs on its own blockchain. Each node independently checks Proof of Work, difficulty, block rewards, transaction signatures, and balance requirements. Blocks and transactions that fail to meet the consensus rules are rejected.

A Defined Supply and Clear Rules

SUMUWW has a maximum supply of 17,999,999.9769 SMW—approximately 18 million coins.

New coins are issued according to block rewards and a halving schedule determined by block height. Transaction fees are paid from existing coins and do not increase the supply.

Each node verifies that block rewards and transaction fee payments comply with the consensus rules.

No Special Administrative Privileges

SUMUWW’s consensus rules grant no individual—including its creator—special authority to issue coins arbitrarily, freeze or seize another user’s assets, or alter balances.

A Network You Can Verify and Participate In

Participants can examine SUMUWW’s source code and network rules to understand how it works. Anyone can use a wallet, mine, or operate a node under the same validation rules.