You cannot add an unspendable coin #139

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1. veektorh commented on Jun 28, 2020

   

   veektorh

   on Jun 28, 2020

   Last edited by veektorh

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   from the source code https://github.com/MetacoSA/NBitcoin/blob/master/NBitcoin/TransactionBuilder.cs
   line 857 - 866

   when you call AddCoins() method , it checks if the coin is spendable , if its not it throws an error.

   public TransactionBuilder AddCoins(IEnumerable<ICoin> coins)
   		{
   			foreach (var coin in coins)
   			{
   				if (coin.TxOut.ScriptPubKey.IsUnspendable)
   					throw new InvalidOperationException("You cannot add an unspendable coin");
   				CurrentGroup.Coins.AddOrReplace(coin.Outpoint, coin);
   			}
   			return this;
   		}
2. NicolasDorier commented on Jul 1, 2020

   

   NicolasDorier

   on Jul 1, 2020

   Last edited by NicolasDorier

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   Yeah, if you add an unspendable coin, we indeed cna't spend it and it should crash.

   What part of the book does it relate to?
3. veektorh commented on Jul 1, 2020

   

   veektorh

   on Jul 1, 2020

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   @NicolasDorier this is a different question, I don't want to open an issue on it.

   is it possible for nbxplorer to generate hardened addresses for me from the derivation scheme it's tracking ?

   from what I know, you can't generate hardened address from xpub.

   I can generate the address I want myself using private keys, But since I'll be tracking using nbxplorer, I'll like to use the addresses generated from nbxplorer

   nbxplorer is currently generating address for me but it's keypath(0/0), what i want us keypath(m/84'/2'/0'/0/0).

   Thanks for your time
4. NicolasDorier commented on Jul 18, 2020

   

   NicolasDorier

   on Jul 18, 2020

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   No it can't. You need to derive the xpub at m/84'/2'/0' and pass that to nbxplorer.