[SproutSeeds]

Much new physics never reaches arXiv: many researchers post on Zenodo, including authors without arXiv access, and journal articles and other repositories reach OpenAlex. recent_papers now also searches both when given a query. A new sources argument selects arxiv, zenodo and openalex; a category-only listing stays on arXiv.

• Zenodo: publications whose first version was uploaded inside the window. Every version is searched and only first versions are kept, so a new version of an older upload is not listed as new.
• OpenAlex: works published inside the window that are not on arXiv (arXiv is searched directly) and, when Zenodo is searched, not on Zenodo. Datasets and software are left out.
• Both services treat bare words as OR, so a plain query searches its phrase and then all words joined by AND.
• Every paper passes the same window and topic checks as arXiv papers and carries its source. Sources take turns filling the list, so a busy source cannot crowd out the others. A title found in several sources is listed once, arXiv first.
• A failing source becomes a note; the call fails only when every source fails. arXiv field syntax and the arxiv-only backend search arXiv only. Zenodo requests are paced under its guest limit of 30 a minute.

Checked live, 2026-09-30

Query	Result
"reflection positivity", 30 days	The arXiv paper listed alongside recent Zenodo uploads; Figshare copies of one work dropped as duplicates
"reflection positivity neural network", 60 days	Nothing from any source
"neural network field theory", 45 days	The three arXiv papers plus a Physical Review D article found through OpenAlex

Tests

New tests cover source merging and labels, first-version Zenodo queries, excluded arXiv and Zenodo works in OpenAlex, per-source failures, arXiv-only cases, turn-taking and duplicate titles. Full suite: 13048 passed, with the three known environment failures.

Limits

• Zenodo uploads are not peer reviewed, and broad physics queries return many recent uploads; each is labeled.
• OpenAlex can list a journal version of an older preprint as new when it has not linked the arXiv copy.
• Sites without a public search API are not covered, for example ResearchGate and personal pages.