How it is built
Provetale turns a spreadsheet into a written report in which every sentence can be traced to a number, and every number to the arithmetic and the columns. This site only shows six reports that were already saved. It does not run a new file.
From file to sentence
- Read the file
- Find the patterns
- Store the evidence
- Write the sentences
- Check the figures
- Save the report
Code does the reading, the tests, the stored arithmetic, and the check. One model writes the sentences from that evidence and does not see the rows. A sentence that fails the check is dropped. These six files are marked VERIFIED.
Four jobs, kept apart
- Code calculates. The same file and the same column meanings produce the same findings. The model does not calculate, does not see the rows, and does not own a figure.
- Evidence proves. Each finding is stored with its arithmetic written out in steps.
- One model explains. It writes the words from that evidence only. The saved reports name the model in the file.
- Verification protects. Code checks every statement. What cannot be backed is dropped. A report is marked VERIFIED or DEGRADED. These six are VERIFIED.
What each saved file records
The counts below are copied from the snapshot of that report.
| Report | Rows | Claims kept | Claims dropped | Saved |
|---|---|---|---|---|
| An online shop: two years of orders | 25,059 | 25 | 0 | 2026-10-28 |
| A subscription business: who signed up, and who stayed | 1,338 | 24 | 0 | 2026-10-28 |
| A marketing team: spend and results by channel | 240 | 30 | 0 | 2026-10-28 |
| A wellbeing survey: screen time, sleep and stress | 1,800 | 23 | 1 | 2026-10-28 |
| Eleven Asian economies, 2000 to 2023 | 264 | 19 | 6 | 2026-10-28 |
| Every country's population, 1960 to 2025 | 14,388 | 23 | 0 | 2026-10-28 |
This site
The reports were built so the pages and the background jobs could run apart, and so files stayed in private storage. This site is the saved result: six reports you can read, with no uploads, no accounts, and no database. No certification is claimed.