LICENSE-STREAMR.txt

Copyright 2023, Usher Labs Pty Ltd.

This license is a variant of the GNU Affero General Public License version 3 (AGPL-3.0),
adapted to meet the specific needs of the Streamr Network. For the original terms of the AGPL-3.0,
see the LICENSE-AGPL-3.0.txt file included in this distribution.

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STREAMR NETWORK OPEN SOURCE LICENSE
-----------------------------------

PREAMBLE

This software is licensed under the Streamr Network Open
Source License. The Streamr Network Open Source License is
based on the GNU Affero General Public License, version 3
(19 November 2007), but it contains a few additional
limitations and requirements.

The main addition is the introduction of operating parameters
which apply to the software. These parameters may induce the
use of specific cryptographic tokens (such as the Streamr
DATAcoin) in the operations of the Streamr Network. Doing so
protects the considerable effort already undertaken by the
Streamr community.

These license terms allow you to create, modify and propagate
new versions of the Streamr Network software (“Program”). Any
copy or modified version shall always comply with certain
network operating parameters, as amended from time to time.
In a manner to be determined in the future, it is Streamr’s
intention to decentralize the governance and decision-making
processes relating to the network operating parameters. The
Streamr Network is also available under a proprietary
commercial license pursuant to a dual licensing scheme.
Please contact Streamr directly at contact@streamr.network if
you are interested in such a proprietary license.

ADDITIONAL TERMS

1. These additional terms (“Additional Terms”) shall be in
addition to and have precedence over the GNU Affero General
Public License, Version 3 (“License Terms”). The License Terms
shall be deemed to be incorporated herein as a material part
of these Additional Terms. Any capitalized terms herein shall
have the meaning given to them in the License Terms.

2. Unless explicitly otherwise stated in these Additional
Terms, the License Terms shall be applicable on and govern
your use, modification and propagation of the Program.

3. Definitions:

    a. “Supported Parameters” means the operating parameters
    of the Program that are indicated in the smart contract
    pointed to by Ethereum Name Service (ENS) registry entry
    network-parameters.streamr.eth from time to time.

    b. “Reference Versions” means the minimum version number
    of the Program that is indicated in the Supported Parameters
    as well as any newer version of the Program (as indicated
    by a higher version number).

    c. “DATA” means the Streamr DATAcoin cryptographic token,
    in each case as set out in and as supported by the Supported
    Parameters from time to time.

4. Subject to Section 5, any modified version of the Program
shall incorporate and implement all of, and only operate in
accordance with, the Supported Parameters, as implemented in
the Reference Versions. For the avoidance of doubt, as an
example, if the modified version involves the use of crypto-
graphic tokens (such as DATA), such tokens must be set out in
the Supported Parameters. Any breach of this Section 4 is
considered a material breach of these Additional Terms.

5. Notwithstanding anything to the contrary in Section 4,
modification and propagation of the Program for development
and testing purposes (meaning e.g., creation of small-scale
prototypes or proofs of concept) is allowed without implementing
the Supported Parameters; provided, however, that the use of
such modified version shall be limited only to the time period
necessary for such development or testing purposes.

6. Any violation or breach of these Additional Terms shall be
deemed a violation or breach of the License Terms.