Radar Perene / Archive / science

What Zenodo is — and why the license is research too

◦ Index methodology v2.2 (working papers with DOI). See the methodology.

Science

A study published on the author's own website has the permanence of the author's own website: one unpaid hosting invoice and the "literature" disappears. Science solved this problem for universities — institutional repositories, libraries, working paper series with decades of history. For whoever researches independently, the solution has a name, an address and an unlikely owner: a repository maintained by the same institution that operates the world's largest particle accelerator.

Zenodo is an open, free scientific repository operated by CERN, where any researcher can deposit studies, data and software. Every deposit receives a DOI — a permanent, citable identifier — and every version is preserved, with the long-term guarantee of one of the largest scientific infrastructures in operation.

The phrase that matters sits in the middle: any researcher. Zenodo requires no institutional affiliation, charges no fee and does not judge the merit of what it receives. That makes it the most accessible permanence infrastructure in existence for independent research — and it also explains the ruler by which it must be read, below.

What a deposit guarantees — and what it does not

A Zenodo deposit guarantees three things: date (the record stamps when the study was published, and that date is never rewritten), identity (the DOI resolves to the same object forever) and version (updates do not erase the earlier text — versions sit side by side, each with its own identifier).

What it does not guarantee is quality. Zenodo is not a journal: there are no referees, no editor, no merit filter. A study deposited there is worth what its content is worth — the infrastructure gives permanence to the record, not authority to the argument. The informed reader applies exactly that ruler: a DOI on Zenodo means "citable and dated", never "validated".

The house case: the RPWP series

Radar Perene's public output lives on Zenodo. In numbers: six working papers of the RPWP series are deposited, each with its own DOI — from the Perene Risk Index study (10.5281/zenodo.21325743) to the study of intermarket relationships in the Brazilian market (10.5281/zenodo.21327663) — plus the data packages behind the first two, deposited with checksums.

The choice of repository followed the logic of the previous article on this trail: a house with no university behind it needs its output to outlive the house itself. The Zenodo deposit unties the study from the house's website — if this portal vanished tomorrow, the six studies would remain where they are, citable by the same DOIs.

The license as a research decision

Every deposit demands a choice most authors make without thinking: the license. The house's studies went out under CC-BY — the Creative Commons license that lets anyone copy, redistribute and reuse the material, for any purpose, with a single requirement: attribute the authorship.

The choice was not bureaucratic; it was consistent with the argument of the studies themselves, which is why we say the license is research too. The declared reasoning has three parts.

First: the house's studies are built on public data — Central Bank series, exchange archives. Research born from the commons that closes itself behind usage restrictions would give back less than it took. Second: the house's interest is to be cited and checked, and CC-BY removes every legal friction between the reader and those two gestures — the mandatory attribution preserves precisely what is worth preserving, the credit. Third: an open license is irrevocable in practice. No one — not even the house itself, in the future, under other incentives — can pull back behind a paywall what was published open. It is a restriction the author imposes on himself, and self-imposed, verifiable restrictions are the material credibility is made of.

The cost exists and goes on the record: CC-BY material can be reused commercially by third parties, including in ways the author would not endorse. The house judged the price smaller than the benefit. Other researchers, with other outputs, do different arithmetic — the right license is the one that comes out of a calculation made, not out of a click on the default.

Frequently asked questions

Is Zenodo really permanent?

The repository's declared policy provides for preservation over CERN's lifetime horizon, with format migration and infrastructure funded by European scientific programs. Absolute guarantees exist in no infrastructure; among the options accessible to an independent researcher, it is one of the strongest.

Can anyone deposit anything?

Yes, and that is the flip side of open access: the repository hosts everything from theses to drafts. The DOI attests existence and date — the quality judgment remains the reader's work, as with all unrefereed literature.

What exactly is CC-BY?

A Creative Commons license authorizing copying, redistribution and adaptation for any purpose, provided authorship is attributed. It is the default license of much of open scientific publishing.

Does depositing on Zenodo prevent later journal publication?

In economics and finance, prior circulation as a working paper is an old practice, accepted as a normal part of the process — policies vary by journal and are public. The deposit records precedence; it does not replace peer review.

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This trail ends here: a catalog for what one reads, a repository for what one writes. The next trail switches sides of the table — from author to reader — and begins with the most read and least understood piece of text in science: How to read a finance paper's abstract in three minutes.

House reading: the deposited output is collected at /pesquisa; what it feeds every day is in today's reading, in the Diário.