# Checksum/Hash on a group of OPC UA Tags

**URL:** <https://forum.inductiveautomation.com/t/checksum-hash-on-a-group-of-opc-ua-tags/105576>\
**Category:** Ignition\
**Tags:** ignition81, database, scripting\
**Created:** [April 25, 2025, 4:24pm UTC](https://forum.inductiveautomation.com/t/checksum-hash-on-a-group-of-opc-ua-tags/105576 "2025-04-25T16:24:42Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\
**Post date:** [April 30, 2025, 5:22pm UTC](https://forum.inductiveautomation.com/t/checksum-hash-on-a-group-of-opc-ua-tags/105576/7 "2025-04-30T17:22:44Z")

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Short and reversible are literally mutually incompatible.

Also, short increases the risk of collisions significantly.

You may be interested in sidestepping the problem:

> [@Tag Version Control Module](https://forum.inductiveautomation.com/t/tag-version-control-module/104022):
>
> Hello All, A while back I published (A bit quietly) a module that could enable some better version control of tags, and I am not sure if I ever published it here. So I figured I would share it for all of those that will not have access to 8.3 for some time! Currently it supports the following features: Allows REST endpoints that can do tag imports/exports/edits based off of provided JSON content. Adds the ability to auto-import tags based off of a config file located in the gateways data dir…

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