# Sources: calculated

Data version 58d57e0f75c2, built 2026-10-27; facts on this page checked 2026-10-20 to 2026-10-27.

1 source: every page, document and dataset a value cites, with its kind, when it was fetched and when it is due again. Internal documents are listed as "Teradek product data" without their titles.

- out/discovery.csv (`src.doc.out-discovery-csv`): calculated; fetched date not recorded; refresh each build.

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Cite as specs-dev.teradek.com/data/sources?tier=derived (data version 58d57e0f75c2).
HTML page: https://specs-dev.teradek.com/data/sources?tier=derived · JSON: /api/sources?country=CZ&tier=derived · How to read this site: [/about.md](https://specs-dev.teradek.com/about.md) · Index for agents: [/llms.txt](https://specs-dev.teradek.com/llms.txt)