Transparency

1 · Who owns it and who answers for it

Marco Três is owned and maintained by INFI Comunicação, a media company based in Foz do Iguaçu. The responsible editor is Annie Grellmann, a local journalist — accountable for the editorial line, periodic checks and the correction or removal of inaccurate content. More at About Marco Três and The Project.

2 · Who pays (declared funding)

Today, Marco Três is funded 100% by INFI Comunicação's own capital. We have no sponsor, advertiser or external funder — no content on this site has been paid for by third parties.

Three revenue sources are planned, and all will be declared here when they exist: (a) native sponsorship with a visible 'sponsored' label — sponsors never influence data or editorial decisions; (b) travel affiliate links, loaded only with your cookie consent and always identified; (c) journalism grants and funds, which will be named on this page if awarded.

3 · Editorial policy

We publish useful information and good news from the Triple Frontier: live data, verified guides and positive factual news. We don't publish party politics, crime or tragedy. We are nonpartisan: institutional credit, never a politician's name or party. Religious festivals and traditions of all faiths are welcome; intolerance is not.

4 · How artificial intelligence is used

Curation and writing are automated by AI, with human editorial supervision and one non-negotiable principle: zero inference — if the information isn't in the verified source, it doesn't go in. All AI-generated content is labeled, cites and links the original source. Numbers and analogies in data stories are computed by code, never 'estimated' by the model. Watch the newsroom operate live at The Newsroom.

5 · Where the data comes from (methodology)

Every live data series has a public, official source (ANA, ANAC, ANP, ONS, MDIC, Open-Meteo, Argentine and Paraguayan agencies), documented at Methodology. Our forecast model's accuracy is publicly audited at Accuracy. When one side of the border has no open source (e.g., fuel prices in Paraguay), we say so on the page instead of making up a number.

6 · Corrections (what we do when we're wrong)

A reported error is verified within 48 hours. If confirmed: the content is corrected and gets a dated correction note, or is unpublished if the error is fundamental. Live data with an unstable source shows the last confirmed value with a notice — never an invented one.

To report an error: use the feedback button on every story, the Contact page, or write to the responsible editor. Relevant corrections are recorded on the story itself.

7 · Labels: what is what

News = verified fact from a cited source. Guide = verified practical answer. Live data = official-source measurement with a timestamp. Forecast/estimate = always labeled as such. Sponsored = always labeled (when it exists). AI content = identified in each piece's footer.

8 · Local voices and participation

We cover all three sides of the border in three languages. Readers take part: unanswered questions become story assignments (Ask the border), reader reports feed collaborative data and every piece of feedback is read. Our impact is published at Impact in numbers.