Unified.Json 1.0.6

dotnet add package Unified.Json --version 1.0.6                
NuGet\Install-Package Unified.Json -Version 1.0.6                
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Unified.Json" Version="1.0.6" />                
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Unified.Json --version 1.0.6                
#r "nuget: Unified.Json, 1.0.6"                
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install Unified.Json as a Cake Addin
#addin nuget:?package=Unified.Json&version=1.0.6

// Install Unified.Json as a Cake Tool
#tool nuget:?package=Unified.Json&version=1.0.6                

Unified Id - the identity of your data.

Pull Requests Welcome Build Quality Gate Status NuGet


What is Unified Id? If GUID is too heavy for your application but you need a random global Id that can be used as a string or long basic type, you are in right place.

What are the main advantages?

Feature Unified GUID
Size 8 byte (13 as string) 16 byte (36 as string)
Partitioning Build-in No, external can be added
Collisions 0.00000001% in 10B IDs 50% in 2.7e18 IDs
Cast implicit(string, ulong, long) explicit(byte[], Parse/ToString)
Generate Build-in(byte[], string, GUID) No, only random NewGuid
Null/Empty-handling Friendly as Empty Exception

Getting started

Install the NuGet package and write the following code:

using Unified;

class Program
    static void Main()
        var id = UnifiedId.NewId(); // AFHUTVDSGUGVQ

You have created your first Unified Id!

Want to use it as a string? string id = UnifiedId.NewId(); or long? long id = UnifiedId.NewId();

UnifiedId could be used as DDD ValueObject in your entities.

using Unified;

class User
    public UnifiedId UserId { set; get; }

class Program
    static void Main()
        var user = new User
            UserId = UnifiedId.NewId();

        var settings = new JsonSerializerSettings // Could be added to global settings.
            Converters = new List<JsonConverter> 
                new UnifiedIdConverter() 
        var json = JsonConvert.SerializeObject(user, settings); // { "UserId": "AFHUTVDSGUGVQ" }

How it works

using Unified;

class Program
    static void Main()
        var guid = Guid.NewGuid();
        var id = UnifiedId.FromGuid(guid);
        var fnv = id.ToUInt64();
        Console.WriteLine($"{guid} => {fnv} => {id}");
        // 8dd02ad1-62cc-4015-9502-49658ba240ae => 15834445116674749764 => DNFPVU1LD2DA4

Unified Id generates 64bit FNV-1a Id's based on GUID and converts it to HEX32 to use as string.


HEX32 is reversible, so you can convert it back from string to UInt64. ulong number = UnifiedId.Parse("DNFPVU1LD2DA4");

Why FNV-1a 64bit? because it has the best space randomization in the case of GUID conversion, below is space representation.


Default method of generation is GUID based using method var id = UnifiedId.NewId();.

This value could be used as string converted in HEX32 consisting of two parts.

[KEY][UNIFIED_ID] KEY - Partition/Shard Key and UNIFIED_ID as Row Unified Key together used as the global identity.

You can also generate this Id as a one-way hash using the following sources:

  • UnifiedId FromGuid(Guid id)
  • UnifiedId FromBytes(byte[] bytes)
  • UnifiedId FromString(string text)
  • UnifiedId FromInt64(long number)
  • UnifiedId FromUInt64(ulong number)

Do you need sequential Id? var id = new UnifiedId(DateTime.UtcNow.Ticks)

Want to save partitioned data? It's easy...

using Unified;
using System;

class Program
    static void Main()
        // Let's emulate the partitioned database.
        var db = new Dictionary<string, List<UnifiedId>>();

        // We will use 10M records, just to execute it fast.
        var all = 10000000; 
        for (var i = 0; i <= all; i++)
            // Generate random Id.
            var id = UnifiedId.NewId();

            // Get it's partition key. Number of partitions could be customized, default 16K.
            var partition = id.PartitionKey();

            // Initialize partitions in your DB.
            if (!db.ContainsKey(partition))
                db.Add(partition, new List<UnifiedId>());

            // Add values to partitions.


DB Count             : 16384
Each item contain    : 610 elements +/-5%

We recommend using Unified Id for data sets size up to 10 billion Ids. More will increase the chance of collision.

© 2021 Serhii Seletskyi. All rights reserved.

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

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Version Downloads Last updated
1.0.6 1,641 11/26/2021
1.0.5 1,476 11/26/2021
1.0.4 1,939 11/26/2021
1.0.3 375 9/24/2020
1.0.2 355 9/24/2020
1.0.1 416 9/21/2020

Performance improvements