Program.cs

using BitcoinKernel;
using BitcoinKernel.Chain;
using BitcoinKernel.Interop.Enums;

namespace BasicUsage;

class Program
{
    static void Main(string[] args)
    {
        Console.WriteLine("=== Bitcoin Kernel Basic Usage Example ===\n");
        FullChainstateExample();
    }

    static void FullChainstateExample()
    {
        Console.WriteLine("Creating kernel...");

        var dataDir = "/tmp/regtest-data2";
        var blocksDir = "/tmp/regtest-data/blocks2";

        using var logging = new LoggingConnection((category, message, level) =>
        {
            if (level <= (int)LogLevel.INFO)
                Console.WriteLine($"   [{category}] {message}");
        });

        using var chainParams = new ChainParameters(ChainType.MAINNET);
        using var contextOptions = new KernelContextOptions().SetChainParams(chainParams);
        using var context = new KernelContext(contextOptions);
        using var options = new ChainstateManagerOptions(context, dataDir, blocksDir)
            .SetWorkerThreads(2);
        using var chainstate = new ChainstateManager(context, chainParams, options);

        Console.WriteLine("   Kernel created successfully!");

        try
        {
            var chain = chainstate.GetActiveChain();
            Console.WriteLine($"   Chain height: {chain.Height}");
            Console.WriteLine($"   Genesis hash: {Convert.ToHexString(chain.GetGenesis().GetBlockHash())}");

            if (chain.Height > 0)
            {
                var tip = chain.GetTip();
                Console.WriteLine($"   Tip hash: {Convert.ToHexString(tip.GetBlockHash())}");

                var genesis = chain.GetBlockByHeight(0);
                if (genesis != null)
                    Console.WriteLine($"   Block 0 hash: {Convert.ToHexString(genesis.GetBlockHash())}");
            }

            Console.WriteLine("   Chain queries working");
        }
        catch (Exception ex)
        {
            Console.WriteLine($"   Error: {ex.Message}");
        }

        Console.WriteLine("\nPress any key to exit...");
        Console.ReadKey();
    }
}