# Licence text provenance

Retrieved on 17 September 2026. These full licence texts are retained byte-for-byte from the sources below, including their standard explanatory material. The package [licensing notice](../LICENSE.md) defines which Odexa material each licence covers; the licence documents themselves are not modified or relicensed by that notice.

| File | Retrieval source | Canonical licence |
| --- | --- | --- |
| [Apache-2.0.txt](Apache-2.0.txt) | [Apache Software Foundation](https://www.apache.org/licenses/LICENSE-2.0.txt) | [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0) |
| [CC-BY-4.0.txt](CC-BY-4.0.txt) | [SPDX license-list-data maintained text](https://raw.githubusercontent.com/spdx/license-list-data/main/text/CC-BY-4.0.txt) | [Creative Commons Attribution 4.0 International legal code](https://creativecommons.org/licenses/by/4.0/legalcode) |

The canonical Creative Commons plain-text URL returned HTTP 403 during download, so its licence text was obtained from the SPDX project's maintained copy. This does not substitute SPDX as the licence issuer or alter the CC BY 4.0 terms.

SHA-256 of the stored files:

```text
cfc7749b96f63bd31c3c42b5c471bf756814053e847c10f3eb003417bc523d30  Apache-2.0.txt
d557539df68e771cc1eedcc91d13f70fca930e508d11eedcafa4b15db49e3744  CC-BY-4.0.txt
```