`sv_mapChecksum`

Base Jedi Academy

Needs review. The inventory/provenance evidence is recorded, but some behavior, options, or attribution still lacks a direct user-facing source.

Engine-managed. The game maintains this value itself, so it is not a setting to change by hand: it is read-only after registration (CVAR_ROM).

Controls ckSum in the engine-server module. Consult the cited behavior reads before relying on values not listed here.

At a glance

Field	Value
Default	``
Value type	`string`
Restart	No latch flag is registered.
Manually settable	No; the game writes this value.
Cheat protected	No
Network scope	`server-authoritative`: Owned or enforced by the server.
Category	Server & networking
Module	`engine-server`
Also registered in	`game`
Renderer	All / not renderer-specific
Derivation	`code-trace`
Confidence	`high`
Added	2013-04-08 in `14cea1563` (how to compare this against your build)
In-game xdocs	No
In-game menu	No

Values

No discrete value list is enforced or documented in the inspected source.

Flags

CVAR_ROM: read-only after registration

Registration-specific defaults

Default	Module	Renderer	Compile condition
``	`engine-server`	`—`	`always`
``	`game`	`—`	`always`

Provenance

Origin: Base Jedi Academy

Baseline evidence: 14cea1563762
Upstream registration evidence: code/server/sv_init.cpp:500
Attribution method: present-in-openjk-initial-source-import
Attribution confidence: high
Notes: Identifier is present in OpenJK’s initial Raven source-import snapshot.

Later changes

These commits occur after the ultimate-origin introduction on TaystJK’s inherited first-parent lineage. Registration evidence is exact; behavior evidence requires a changed bound cvar reference or a changed registered command-handler hunk.

Date	Change source	Commit / subject	Evidence	Confidence
`2013-04-08`	OpenJK	`61779788b020` Botlib improvements. Moved some botlib headers to the botlib folder	Changed an exact bound cvar-variable reference. `codemp/botlib/botlib.h`	`medium`
`2013-04-19`	OpenJK	`bb29d3a516fb` Finished up most of the code now for the modular SP renderer. The things I need to fix still: - Some undefined externals - Some of the imports - The whole DLL import routine - Actual testing (???) Should be done by the end of this weekend, hopefully.	Changed registration, default, flags, module, renderer scope, handler, or gating. `code/rd-vanilla/tr_init.cpp`	`medium`
`2013-08-11`	OpenJK	`794718e3fdfb` Merge pull request #344 from Razish/qvmtest	Changed registration, default, flags, module, renderer scope, handler, or gating; and an exact bound cvar-variable reference. `codemp/game/g_main.c`	`medium`
`2015-11-24`	EternalJK	`c8f6ea17a324` Remove SP code	Changed registration, default, flags, module, renderer scope, handler, or gating. `code/rd-vanilla/tr_init.cpp`, `code/server/sv_init.cpp`	`medium`

Evidence

registration: codemp/game/g_main.c:412 (Cvar_Register)
registration: codemp/game/g_main.c:3373 (Cvar_Register)
registration: codemp/server/sv_init.cpp:1031 (Cvar_Get)
behavior: codemp/game/g_main.c:3390
behavior: codemp/game/g_main.c:414
behavior: codemp/game/sqlite3.c:41949
behavior: codemp/game/g_main.c:3379
behavior: codemp/game/g_main.c:3392

Generated from source commit c722804317d7 on 2026-09-28. Anything merged after that is not reflected here.