# Signers An electronic signature, or e-signature, refers to data in electronic form, which is logically associated with other data in electronic form and which is used by the signatory to sign. [Labii ELN & LIMS (Electronic Lab Notebook and Laboratory Information Management System)](https://www.labii.com/) is designed to fully match the requirement of regulation organizations. Specifically: * Once signed, the document will be locked from editing. * The e-signature contains the document, date time, and user information. * Multiple users can be configured with various roles. * User's login password is required to avoid unauthorized signatures. * Signatures are signed in order. Later signers have permission to revoke previous signatures ### Changes The Signers widget replaces the previous Signature, Double Signature, Triple Signature, and Approval Signatures widgets. ### Signature At Labii, a signature contains information about the record, the user, and the date. A typical signature looks like this: `ZlhORGUxODRlMGUxYzMyZTRhNzA0MTRkNTNmNzA2NmQxZmRlX1B2NEMweDcweDFFM1NzSkVzaUdJRTI_` ### Signers widget The Signers widget is the widget wrapper for the [Signers tab](/user-guide/detail-view/signers.md). The widget has exactly the same function as the [signers tab](/user-guide/detail-view/signers.md). It allows users to manage a list of signers and sign documents in your document directly. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.labii.com/widgets/section-widgets/regulation/signers.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.