1. Introduction


Swarm is a censorship resistant, permissionless, decentralised storage and communication infrastructure.

This base-layer infrastructure provides these services by contributing resources to each other. These contributions are accurately accounted for on a peer to peer basis, allowing nodes to trade resource for resource, but offering monetary compensation to nodes consuming less than they serve.

Swarm is using existing Smart-Contract platforms (e.g. Ethereum) to implement the financial incentivisation.

1.1. Implementations of Swarm


Programming Language

Maintained by


Swarm Go-Client


Swarm Core-Team

Swarm Nim-Client


Development is planned to start Q1 2020

1.2. Public Swarm Networks

Network ID

Network Name

Type of Network

Maintained by


Network ID #4


Pubic Test-Network

Swarm Core-Team / EF Dev OPS

The Ethereum Foundation operates a Swarm testnet that can be used to test out functionality in a similar manner to the Ethereum testnetwork. Everyone can join the network by running the Swarm client.

1.3. Development status

Uploaded content is not guaranteed to persist on the testnet until storage insurance is implemented (see Roadmap for more details). All participating nodes should consider participation a voluntary service with no formal obligation whatsoever and should be expected to delete content at their will. Therefore, users should under no circumstances regard Swarm as safe storage until the incentive system is functional.Next Previous