.. _TERM_0003:

TERM_0003 — doi-format-invalid
==============================

**Error Code**: TERM_0003

**Message**: ``Invalid DOI format.``

**Problematic query**:

.. code-block:: text

    DO=12.1000/xyz

**Recommended query**:

.. code-block:: text

    DO=10.1000/xyz

**Typical fix**: Use a valid DOI format (e.g., starts with 10. followed by a numeric string and suffix).

**Back to**: :ref:`lint`