# 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](https://docs.labii.com/user-guide/detail-view/signers). The widget has exactly the same function as the [signers tab](https://docs.labii.com/user-guide/detail-view/signers). It allows users to manage a list of signers and sign documents in your document directly.

![](https://github.com/Labii/labii-gitbook-docs/blob/gitbook/widgets/.gitbook/assets/signers.webp)