Read a DOI or ORCID →
Prepare an identifier link and check the ORCID check digit without contacting a registry.
Structure or a consistent check digit proves neither existence, assignment nor scientific quality.
Read the full methodPractical tools for research and digital tasks
Build a source-checking notebook, read a web address without opening it, prepare searches and use calculators with clear methods and limits.
Choose a task. Each workshop explains what it calculates or records and links to the full method.
Choose a workshop
Compare resources before choosing a destination
Put two or three directory records side by side. Compare their purposes, publishers and source documentation, then download your selection.
Open the directory comparison →Use the notebook with a concrete task
Choose a worked method for a document, citation, map or dataset. Its documentation link can become the starting point for your own checking record.
Choose a worked method →Read a DOI or an ORCID identifier
Distinguish a research object from a person identifier. This workshop prepares a link and checks the ORCID check digit. It contacts no registry and verifies neither object existence nor author identity.
Local processing, with no submission or automatic storage of the input. Opening the prepared link is a separate action contacting the registry and possibly the DOI destination.
Documentation consulted on 9 October 2026: DataCite — DOI Basics, ORCID — Identifier structure. Examples come from this documentation; they are not publications or profiles created by the portal.
Read a web address without opening it
Separate the contacted host, path, parameters and fragment. A familiar name in the path or before an @ can obscure another destination. This workshop does not verify site identity or redirects.
HTTPS describes the protocol, not reliability. The registered domain is not inferred automatically: suffixes such as .co.uk require an appropriate suffix list. A shortened link requires a separate check of its final destination.
Documentation consulted on 8 October 2026: MDN — URL.hostname, URL.username, URL.hash.
Build your source-checking notebook
Write one precise claim, compare two sources and record what remains uncertain. The tool formats your notes; it does not fetch sources or decide whether a claim is true.
Worked example: two figures that cannot yet be compared
Illustrative figures: source A reports 120 visits in March; source B reports 100 visitors in February. The statement “traffic increased by 20%” is not established: visits and visitors count different things. In the notebook, preserve each unit and period, then request two values measured with the same definition. A calculation cannot repair a mismatch in definitions.
These fields are processed only in this tab, with no request to the pasted addresses and no automatic storage. Download is optional. Reloading clears the tool’s state; your browser may restore form fields. Avoid personal details and confidential links.
Keep a useful record
Save the initial question, units, inputs, date and limitations with your result. An illustrative example is not a measurement of your situation. Recalculate when inputs change.
Calculations and worksheets run in your browser without sending or saving entries. Sending a prepared query to Google is a separate action. The address reader does not contact the pasted destination.