The journal, citations, plan and evidence worksheet run in your browser. The age calculator sends only a date and age to this site; each tool explains how it works.
Use one entry per search with question, repository, reference and result, including failures. Put filters, variants and period in notes. CSV is a reading copy; keep it outside the browser. The current log does not support CSV reimport. To recover the log on another device, export a JSON backup and import it into this tool. Import adds missing identifiers without overwriting entries. CSV is for spreadsheet reading; JSON restores the log.
Enter repository, record type and date, reference and page or image. Add subject and record URL. Review the output: it does not verify the document or conclusion. Access date is the generation date.
Write one question and the last established fact. Choose a repository and collection, then a verification criterion and alternative. Download the plan; it is not automatically saved.
An age in completed years and an observation date define a birth interval if the reported age is accurate. Use it to plan a search, not to establish a birth date.