Cite the methodology. Cite the version.

CC-BY-4.0. Cite the version.

• License: CC-BY-4.0. Free to use, redistribute, adapt — including in commercial work — with attribution to Fonteum.
• One DOI per methodology version. Bump the methodology, get a new DOI. The previous DOI stays valid forever — you can always cite the exact version that produced the data you used.
• Version chaining. Each new deposit references the prior one via Zenodo's isNewVersionOf related identifier. The version graph is visible in OpenAlex + the Zenodo record page.
• Auto-publish cadence. A 15-minute polling cron picks up new methodology bumps from methodology_change_log and publishes them. Typical lag: under an hour from bump to DOI.

Three formats. Per release.

Each entry on /methodology/changelog with a published DOI carries a copy-ready citation panel (click cite this release on the entry). Three formats cover the major academic disciplines:

• BibTeX — used by LaTeX-authored papers (CS, math, physics).
• APA 7th edition — social and behavioral sciences (psychology, public health, much medicine).
• AMA 11th edition — clinical medicine + most journal-of-record medical publications.

All three formats include the DOI URL (https://doi.org/...) which resolves to the Zenodo record, providing the canonical archive of the methodology spec + the snapshot back-references.

OpenAlex indexes within days. Google Scholar within weeks.

• OpenAlex (268M scholarly works as of July 2025): api.openalex.org/works?search=fonteum — direct API search. The browsable UI is at openalex.org/works?search=fonteum.
• Zenodo (search across all deposits): zenodo.org/search?q=fonteum.
• Google Scholar (lags OpenAlex by 1-2 weeks): search for fonteum methodology.
• DOI resolver (direct lookup): https://doi.org/{doi}.

Cryptographic chain over every snapshot.

Each Zenodo deposit includes a snapshot-references.json file listing the source-snapshot IDs the methodology change operated against, with their SHA-256 content hashes from /trust/integrity. Those snapshots in turn participate in the Certificate-Transparency-style attestation chain at /chain — every link Ed25519-signed and tamper-evident.

Researchers verifying a Fonteum methodology citation can: (1) resolve the DOI to fetch the deposit, (2) download methodology.yaml + snapshot-references.json, (3) re-derive the chain link for each snapshot, (4) verify the Ed25519 signature against the published public key at /.well-known/chain-public-key. Full verifier reference at /docs/chain.

Phase 1: forward-going releases.

• Phase 1 (this wave): auto-publish forward-going methodology releases. After 30-60 days of bumps, Fonteum accumulates 3-5 DOI-stamped artifacts in OpenAlex.
• Phase 2 (queued): retroactive registration of all historical methodology versions accumulated since Sprint 1.
• Phase 3 (queued): medRxiv preprint draft pipeline; ORCID linkage for institutional affiliation; cross-organization Zenodo community submission.