# MetaCrate notices and attribution

MetaCrate's Rust implementation is licensed under the BSD 3-Clause License in
[`LICENSE.md`](LICENSE.md). It is a clean native Rust rewrite based on the
public API and observable behavior of LibreMetaverse at commit
`2aa70bb68513b39795da5d13c88f31b86e85a3ba`. The upstream BSD notice is
retained in `LICENSE.md` for openmetaverse.co (2006–2016) and Sjofn LLC
(2017–2025). The exact pinned upstream text is included in
[`licenses/LibreMetaverse-BSD-3-Clause.txt`](licenses/LibreMetaverse-BSD-3-Clause.txt).

## Linden viewer data

The following exact, unmodified files are Linden viewer data redistributed by
LibreMetaverse under Creative Commons Attribution-ShareAlike 3.0 Unported:

- `codegen/inputs/attentions.xml`
- `codegen/inputs/attentionsN.xml`
- `codegen/inputs/avatar_lad.xml`
- `codegen/inputs/avatar_skeleton.xml`
- `codegen/inputs/genepool.xml`
- `codegen/inputs/grass.xml`
- `codegen/inputs/trees.xml`

The original author/attribution party is Linden Lab. MetaCrate copied these
files without modification from the pinned LibreMetaverse `LibreMetaverse/linden/`
tree. Their generated Rust data tables identify the input, exact SHA-256, and
CC-BY-SA-3.0 license. The license URI and pinned legal-code hash are retained in
[`licenses/CC-BY-SA-3.0-NOTICE.md`](licenses/CC-BY-SA-3.0-NOTICE.md).

No Linden textures, meshes, animations, gestures, clothing, body parts, or
viewer binaries are included. The protocol `message_template.msg` is separately
tracked as BSD-3-Clause material from LibreMetaverse's `data/` tree and is not
classified as a Linden CC asset by the pinned upstream repository.

## Generated and translated material

Generated Rust files retain machine-readable source hashes and licenses in
their headers. The LSL parser grammar snapshot, compatibility fixtures,
translated tests, API mappings, and program mappings are covered by the
MetaCrate and upstream BSD notices. Their exact provenance is checked by the
Rust release-provenance audit and its locked manifests.

## Dependencies and native components

[`release/THIRD-PARTY-NOTICES.md`](release/THIRD-PARTY-NOTICES.md) contains the
complete locked Rust package inventory and the license/notice files shipped by
each package. [`release/NATIVE-LICENSES.md`](release/NATIVE-LICENSES.md) records
native components, whether MetaCrate bundles them, and the notice obligations
for binary distributors. Both are generated from
[`ci/provenance-policy.json`](ci/provenance-policy.json) and `Cargo.lock`.

A source or binary distribution is complete only when it includes the notice
files required by [`release/DISTRIBUTION-MANIFEST.json`](release/DISTRIBUTION-MANIFEST.json).
