Provance.Core 0.0.3

.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. 
dotnet add package Provance.Core --version 0.0.3
                    


                    

                
NuGet\Install-Package Provance.Core -Version 0.0.3
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="Provance.Core" Version="0.0.3" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Provance.Core" Version="0.0.3" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Provance.Core" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add Provance.Core --version 0.0.3
                    


                    

                
#r "nuget: Provance.Core, 0.0.3"
#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. 
#:package Provance.Core@0.0.3
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=Provance.Core&version=0.0.3
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Provance.Core&version=0.0.3
                    


                            Install as a Cake Tool

<p align="center"> <img src="provanceCore.png" alt="PROVANCE Core logo" width="120" /> </p>

Provance.Core

Core SDK for PROVANCE: tamper-evident audit trails via HMAC-SHA256 hash-chaining and a single-writer ledger (anti-fork) model.

  • Repo docs: see the root README in the repository.
  • NuGet: Provance.Core

Install

dotnet add package Provance.Core

What you get

  • LedgerEntry model (hash-chaining fields + Sequence)
  • ILedgerService for producing entries and verifying integrity
  • Single Writer background service (linearizes concurrent producers)
  • In-memory store for demos/tests (InMemoryLedgerStore)

For ASP.NET Core integration, use Provance.AspNetCore.Middleware.

Minimal DI (Worker / Console)

using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Provance.Core.Options;
using Provance.Core.Services;
using Provance.Core.Services.Interfaces;
using Provance.Core.Services.Internal;

var host = Host.CreateDefaultBuilder(args)
  .ConfigureServices(services =>
  {
      services.Configure<ProvanceOptions>(o =>
      {
          o.GenesisHash = "0000000000000000000000000000000000000000000000000000000000000000";
          o.SecretKey = "CHANGE_ME_IN_PROD";
      });

      services.AddSingleton<IEntryQueue, EntryQueue>();
      services.AddSingleton<ILedgerService, LedgerService>();

      // DEV/TEST ONLY (use a real store in prod)
      services.AddSingleton<ILedgerStore, InMemoryLedgerStore>();

      // Single Writer
      services.AddHostedService<LedgerWriterService>();
  })
  .Build();

await host.RunAsync();

Compatibility notes

  • v0.x is pre-release: breaking changes may occur.
  • v0.0.3 introduces Sequence as the deterministic ordering key; start a new ledger collection when upgrading from v0.0.2.

License

MIT

Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  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.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 is compatible.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (2)

Showing the top 2 NuGet packages that depend on Provance.Core:

Package Downloads
Provance.AspNetCore.Middleware

ASP.NET Core middleware + DI helpers for PROVANCE tamper-evident audit trails.
Provance.Storage.MongoDB

MongoDB storage provider for PROVANCE (ILedgerStore) with deterministic ordering and single-writer lease support.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
0.0.3 233 11/28/2025
0.0.2 283 11/25/2025
0.0.1 271 11/23/2025

v0.0.3: Single-writer correctness + Sequence ordering.