Activate a License

IsoFind operates in Research mode for free, with no time limit. Advanced features (Nexus, legal traceability, data protection, multi-user support) are accessible via a Research + Nexus or Pro license. This page explains the available plans, how the licensing system works, and how to proceed with activation.

Available Plans

Research

IsoFind Research

Free, no time limit

Isotopic matching research
Interpretive dashboard
Element, standards, and CRM management
Community database
Plugin system
CSV and Excel import
Isotopic mapping
IsoFind spreadsheet

Research + Nexus

IsoFind Research + Nexus

Academic, annual subscription

All Research features
Full Nexus access
Rayleigh and kinetic modeling
Geochemical speciation
Advanced isotopic workflows
Mass balance and error propagation
Process library
ML Contextualization

Recommended

Pro

IsoFind Pro

Professional and Defense, annual subscription

All Research + Nexus features
Signature reconstruction after industrial transformation
Full legal traceability
Signed PKI export, certifiable reports
AES-256-GCM database protection
Multi-user and role management
HMAC-SHA256 audit trail
Certified professional PDF reports

How the Licensing System Works

IsoFind uses an entirely offline licensing system. No connection to an activation server is required, neither at the time of activation nor during subsequent startups.

Each license is a .license file cryptographically signed with ECDSA P-256. This file contains the license type, authorized features, expiration date, and the unique fingerprint of the machine on which it must be activated. The public verification key is compiled into the IsoFind binary. Verification is performed locally at every startup, without any network calls.

A license is tied to a specific machine via its hardware fingerprint. It cannot be transferred directly to another station: a change of machine requires a new license request (see the corresponding section below).

Activation Procedure

Activation is completed in four steps.

Generate the Machine Fingerprint

In IsoFind, open the License menu:

License Menu → License Management → Discover Options → Get a License

IsoFind generates and displays a machine fingerprint: a 64-character hexadecimal string derived from the station's hardware identifiers. The Copy button places it in the clipboard.

Figure 1: Machine fingerprint generation window with license type selector and email send button.

Send the Fingerprint by Email

Select the desired license type (Research + Nexus or Pro), then click Send by Email IsoFind opens the email client with a pre-filled email containing the fingerprint and selected license type, addressed to colin.ferrari@isofind.tech.

If the email client does not open (air-gap mode), copy the fingerprint manually and send an email to colin.ferrari@isofind.tech specifying the desired license type and the 64-character fingerprint.

Receive the License File

After processing the request, IsoFind SAS generates a signed .license file for this machine and sends it by email. This file is nominative: it is linked to the exact fingerprint of the machine and the requested license type. It is only valid on that specific station.

Import the License File into IsoFind

In IsoFind, open the activation menu:

License Menu → License Management → Import a License File

Select the .license file received by email, or drag and drop it into the designated area. IsoFind cryptographically verifies the signature, machine fingerprint, and validity date. If everything is correct, the license is activated immediately and IsoFind unlocks the corresponding features.

Figure 2: Interface for importing the .license file and confirming activation.

Activation is entirely offline. No internet connection is required at any stage, including verification at each startup. IsoFind can be activated on stations in isolated networks (air-gap).

Check Active License Status

The status of the current license can be consulted at any time:

License Menu → License Management

The status window displays the active license type, expiration date, number of days remaining, the serial number assigned to this activation, and the associated machine fingerprint. In Research mode (free license), this window indicates the active mode and provides upgrade options.

Renew an Expired License

Upon expiration, IsoFind automatically reverts to Research mode. Analytical data and workflows are fully preserved. Only features locked by the expired license become inaccessible.

To renew, follow the same procedure as the initial activation: generate the machine fingerprint (it remains identical on the same station), send an email to colin.ferrari@isofind.tech specifying that it is a renewal and the serial number of the expired license if available. IsoFind SAS generates a new .license file with a new validity date.

Keep the received .license file in a safe place separate from the IsoFind station. In case of an operating system reinstallation on the same hardware, the machine fingerprint remains identical and the same license file can be re-imported without making a new request.

Transferring a License to a New Station

A license is tied to the hardware fingerprint of a specific station. It is not directly transferable. If the machine changes (new station, significant motherboard change), a new request is necessary.

For a station transfer, send an email to colin.ferrari@isofind.tech indicating the existing license serial number and the new machine fingerprint generated on the new station. IsoFind SAS will proceed with migrating the license to the new hardware.

The machine fingerprint is tolerant of partial component replacements (adding RAM, changing a hard drive). However, it may change in the event of a motherboard replacement or a full reinstallation on different hardware. If in doubt, generate the fingerprint before and after hardware intervention to verify it remains identical.

Common Activation Errors

Error Message	Probable Cause	Solution
Invalid license signature	.license file corrupted or modified after reception.	Request the file again from IsoFind SAS. Do not open or modify the file before import.
Machine fingerprint mismatch	The license was generated for another station, or the fingerprint changed following a significant hardware modification.	Regenerate the fingerprint from IsoFind and contact IsoFind SAS for a new license.
License expired	The expiration date recorded in the file has passed.	Proceed with renewal (see section above).
License file not recognized	The selected file is not a valid .license file, or its JSON structure is incorrect.	Verify that the correct file is selected. Ensure it has not been renamed with another extension.
Incompatible license type	The file corresponds to a different license type than expected.	Check the license type in the received email. Contact IsoFind SAS if the type is incorrect.

Contact

For any license request, renewal, station migration, or question regarding available features by plan:

Email: colin.ferrari@isofind.tech

Include in the email the machine fingerprint generated from IsoFind, the desired license type (Research + Nexus or Pro), and the context of use (academic laboratory, industry, defense). Specific rates are available for academic institutions and public organizations.

License requests are processed manually by IsoFind SAS. The usual turnaround time is 1 to 2 business days. For urgent deployments in sensitive environments, specify the required deadline in the email.