# Minimum Requirements for Digital Asset Code Attribution

**URL:** <https://forum.canton.network/t/minimum-requirements-for-digital-asset-code-attribution/2451>\
**Category:** App Development\
**Tags:** daml, code, attribution\
**Created:** [April 15, 2021, 6:49am UTC](https://forum.canton.network/t/minimum-requirements-for-digital-asset-code-attribution/2451 "2021-04-15T06:49:23Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![quidagis](https://avatars.discourse-cdn.com/v4/letter/q/dbc845/32.png) [@quidagis](https://forum.canton.network/u/quidagis)\
**Post date:** [April 15, 2021, 6:49am UTC](https://forum.canton.network/t/minimum-requirements-for-digital-asset-code-attribution/2451/1 "2021-04-15T06:49:23Z")

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If we use a piece of code from one of the templates, and ostensibly do not change much besides Party, Owner, Supervisor, what are the minimum requirements for code attribution?

This below being the default attribution in the 1\_Token example in the Daml Documentation

```haskell
-- Copyright (c) 2021 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
-- SPDX-License-Identifier: Apache-2.0

```

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<div class="post-metadata">

**Author:** ![Luciano](https://yyz2.discourse-cdn.com/flex034/user_avatar/forum.canton.network/luciano/32/319_2.png) [@Luciano](https://forum.canton.network/u/Luciano)\
**Post date:** [April 15, 2021, 7:12am UTC](https://forum.canton.network/t/minimum-requirements-for-digital-asset-code-attribution/2451/2 "2021-04-15T07:12:00Z")

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I’m no legal expert, but they should be governed by the license, in this case Apache-2.0 as you can see from your example (we do use other licenses though - take note!). The full text will be available in a `LICENSE` file at the root of the project.

In your example, I think section 4 (c) applies:

> You must retain, in the Source form of any Derivative Works  
> that You distribute, all copyright, patent, trademark, and  
> attribution notices from the Source form of the Work,  
> excluding those notices that do not pertain to any part of  
> the Derivative Works; and

Again, please do not take this as legal advice. If in doubt, seek advice of a qualified lawyer.

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<div class="post-metadata">

**Author:** ![quidagis](https://avatars.discourse-cdn.com/v4/letter/q/dbc845/32.png) [@quidagis](https://forum.canton.network/u/quidagis)\
**Post date:** [April 15, 2021, 7:16am UTC](https://forum.canton.network/t/minimum-requirements-for-digital-asset-code-attribution/2451/3 "2021-04-15T07:16:56Z")

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Thank you for that 👍🏻

I thought there would be something required for derivative works. If someone on the forum can paste in a snippet of the attribution code block from a non-trivial derivative work, that’d be handy for future reference.

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<div class="post-metadata">

**Author:** ![Luciano](https://yyz2.discourse-cdn.com/flex034/user_avatar/forum.canton.network/luciano/32/319_2.png) [@Luciano](https://forum.canton.network/u/Luciano)\
**Post date:** [April 15, 2021, 7:22am UTC](https://forum.canton.network/t/minimum-requirements-for-digital-asset-code-attribution/2451/4 "2021-04-15T07:22:56Z")

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I think I may be misunderstanding your question. What do you expect as an attribution in addition to

```haskell
-- Copyright (c) 2021 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
-- SPDX-License-Identifier: Apache-2.0

```

and a LICENSE file?

Could you give an example?

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<div class="post-metadata">

**Author:** ![quidagis](https://avatars.discourse-cdn.com/v4/letter/q/dbc845/32.png) [@quidagis](https://forum.canton.network/u/quidagis)\
**Post date:** [April 15, 2021, 7:24am UTC](https://forum.canton.network/t/minimum-requirements-for-digital-asset-code-attribution/2451/5 "2021-04-15T07:24:34Z")

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OK, I understand now, _that_ is all you need.

Please excuse my denseness.