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Artifacts: Add docs on downloading reference artifacts with checkum #1457

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Artifacts: Add docs on downloading reference artifacts with checkum #1457

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2aa5548
claude writes
ngrayluna Jul 21, 2025
d7c2917
Update content/en/guides/core/artifacts/download-and-use-an-artifact.md
ngrayluna Aug 11, 2025
72416d3
Merge branch 'main' into claude_code_DOCS-1014
ngrayluna Aug 11, 2025
b497e0b
Merge branch 'main' into claude_code_DOCS-1014
ngrayluna Aug 19, 2025
65f731a
Updated
ngrayluna Aug 19, 2025
67c9e17
small edit
ngrayluna Aug 19, 2025
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4 changes: 4 additions & 0 deletions content/en/guides/core/artifacts/construct-an-artifact.md
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Original file line number Diff line number Diff line change
Expand Up @@ -173,6 +173,10 @@ Add an external URI reference to an artifact with the [`add_reference`]({{< relr
artifact.add_reference(uri="uri", name="optional-name")
```

{{% alert color="warning" %}}
If you set `checksum=False` when adding a reference, the artifact cannot be downloaded later. Only use `checksum=False` when you need to track reference URIs without downloading capability. For downloadable artifacts, always use `checksum=True` (the default).
{{% /alert %}}

Artifacts currently support the following URI schemes:

* `http(s)://`: A path to a file accessible over HTTP. The artifact will track checksums in the form of etags and size metadata if the HTTP server supports the `ETag` and `Content-Length` response headers.
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12 changes: 12 additions & 0 deletions content/en/guides/core/artifacts/download-and-use-an-artifact.md
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Expand Up @@ -14,6 +14,18 @@ Download and use an artifact that is already stored on the W&B server or constru
Team members with view-only seats cannot download artifacts.
{{% /alert %}}

{{% alert color="warning" %}}
Artifacts created with reference URIs using `checksum=False` cannot be downloaded. To ensure your artifacts can be downloaded, use `checksum=True` (the default) when adding references:
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Suggested change
Artifacts created with reference URIs using `checksum=False` cannot be downloaded. To ensure your artifacts can be downloaded, use `checksum=True` (the default) when adding references:
If you set `checksum=False` when adding a reference, the artifact cannot be downloaded later. Only use `checksum=False` when you need to track reference URIs without downloading capability. For downloadable artifacts, always use `checksum=True` (the default):

This way the notes at least share most of the text. But if checksum=True is the default, then line 22 seems not to need the checksum=True and it might be more clear to leave it off.


```python
# This artifact can be downloaded
artifact.add_reference("s3://my-bucket/model.h5", checksum=True)

# This artifact cannot be downloaded
artifact.add_reference("s3://my-bucket/model.h5", checksum=False)
```
{{% /alert %}}


### Download and use an artifact stored on W&B

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