Squashed commit of the following:

commit a504435151efbe1d19404fa44859b15c629f6d5d
Author: vnugent <public@vaughnnugent.com>
Date:   Sun Mar 24 20:55:01 2024 -0400

    chore: Updated compose and added some more logging

commit c74440ff12daa03cc4b7792d0c3baad46a11a465
Author: vnugent <public@vaughnnugent.com>
Date:   Mon Mar 18 21:57:57 2024 -0400

    feat: message checksum support & dynamic serializers

commit 9983582db08d3e6c456295ea96e482cbb4f31f42
Author: vnugent <public@vaughnnugent.com>
Date:   Sun Mar 10 21:58:28 2024 -0400

    source tree project location updated

commit 60f09bde87b5c59ef937c62ef64b7745bc3711b5
Merge: 2f75659 e5bb0ee
Author: vnugent <public@vaughnnugent.com>
Date:   Sun Mar 10 16:50:09 2024 -0400

    Merge remote-tracking branch 'origin/master' into develop

commit 2f7565976472f0f056db60520bf253a776112c10
Merge: 323ff67 6b87785
Author: vnugent <public@vaughnnugent.com>
Date:   Sun Mar 10 16:45:23 2024 -0400

    merge master

commit 323ff67badfc46ad638d75f059d60d9425ccb2fa
Author: vnugent <public@vaughnnugent.com>
Date:   Sun Mar 10 15:50:07 2024 -0400

    ci(server): Conainerize and add vncache server packages

commit 5d4192880654fd6e00e587814169415b42621327
Author: vnugent <public@vaughnnugent.com>
Date:   Sat Mar 9 19:13:21 2024 -0500

    chore: #2 Minor fixes and polish before release

commit a4b3504bb891829074d1efde0433eae010862181
Author: vnugent <public@vaughnnugent.com>
Date:   Sat Mar 9 16:30:44 2024 -0500

    package updates

commit 4d8cfc10382105b0acbd94df93ad3d05ff91db54
Author: vnugent <public@vaughnnugent.com>
Date:   Wed Mar 6 21:30:58 2024 -0500

    refactor: #2 Centralize server state, default discovery endpoints & more

commit 016a96a80cce025a86c6cf26707738f6a2eb2658
Author: vnugent <public@vaughnnugent.com>
Date:   Thu Feb 29 21:22:38 2024 -0500

    feat: add future support for memory diagnostics, and some docs

commit 456ead9bc8b0f61357bae93152ad0403c4940101
Author: vnugent <public@vaughnnugent.com>
Date:   Tue Feb 13 14:46:35 2024 -0500

    fix: #1 shared cluster index on linux & latested core updates

commit a481d63f964a5d5204cac2e95141f37f9a28d573
Author: vnugent <public@vaughnnugent.com>
Date:   Tue Jan 23 15:43:50 2024 -0500

    cache extension api tweaks

1 files changed, 18 insertions, 3 deletions

diff --git a/lib/VNLib.Data.Caching/src/Constants.cs b/lib/VNLib.Data.Caching/src/Constants.cs
index 3fb87e0..6c2051a 100644
--- a/lib/VNLib.Data.Caching/src/Constants.cs
+++ b/lib/VNLib.Data.Caching/src/Constants.cs
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2022 Vaughn Nugent
+* Copyright (c) 2024 Vaughn Nugent
 * 
 * Library: VNLib
 * Package: VNLib.Data.Caching
@@ -22,12 +22,11 @@
 * along with this program.  If not, see https://www.gnu.org/licenses/.
 */
 
-using System;
-
 using VNLib.Net.Messaging.FBM;
 
 namespace VNLib.Data.Caching
 {
+
     public static class Constants
     {
         /// <summary>
@@ -48,9 +47,25 @@ namespace VNLib.Data.Caching
             public const string Okay = "ok";
             public const string Error = "err";
             public const string NotFound = "nf";
+            public const string InvalidChecksum = "cm";
         }
 
         public const HeaderCommand ObjectId = (HeaderCommand)0xAA;
         public const HeaderCommand NewObjectId = (HeaderCommand)0xAB;
+        public const HeaderCommand ChecksumType = (HeaderCommand)0xA1;
+        public const HeaderCommand ChecksumValue = (HeaderCommand)0xA2;
+        public const HeaderCommand ChecksumWarning = (HeaderCommand)0xA3;
+
+        /// <summary>
+        /// Contains constants for checksum type names for FBM headers
+        /// </summary>
+        public static class ChecksumTypes
+        {
+            public const string Fnv1a = "fnv1a";
+            public const string Crc32 = "crc32";
+            public const string Md5 = "md5";
+            public const string Sha1 = "sha1";
+            public const string Sha256 = "sha256";
+        }
     }
 }