I have a POC where the essential, critical, priority goal is to use C# and the .NET Core Framework (Bouncy Castle for crypto, or Microsoft primitives for BigInteger ) where I do the following
Accept a number of transactions that include zero or some fee attached to the transactions (P2P pending Tx queue)
Calculate the relevant block reward and send it to an address as defined in the block specification format
Calculate the block's Proof of Work value as specified in the Target or other similar value (difficulty)
Finally submit the following, as calculated by NBitcoin, into the REST API in the full Bitcoin RPC client (isolated test network)
Any assistance in linking NBitcoin to a "software-CPU miner" just as if Bitcoin was invented originally in 2009 would be greatly useful for the prosocial endeavors I'm currently engaged for.