On Mon, Dec 29, 2014 at 7:21 PM, Sergio Lerner <sergioler...@certimix.com> wrote: > I propose to allow miners to voluntarily lock funds by letting miners > add additional inputs to the coinbase transaction. Currently the > coinbase transaction does not allow any real input to be added (only a > pseudo-input). > This is a hard-fork, and we could include it the next time a hardfork is > made. > The modifications to the code are minimal (no more than 12 lines > modified where IsCoinBase() is called), and they generally involve > removing code, not adding.
If the motivation is purely enabling different rules in a soft-fork than I think nothing needs to be done. Instead of providing inputs to a coinbase: you provide an unusual anyone can spend transaction in the block which pays to fees; and simultaneously add a soft-forking rule that makes that anyone can spend rule no longer anyone can spend. To make that more concrete. E.g. You make your anyone can spend output "PUSH<hash of coinbase output script_pubkeys> OP_NOP3". Now this anyone can pay transaction is really just a coinbase input. The construction is reasonably efficient, and also more flexible-- in that it could control the data under the hash in more flexible ways than available in the existing sighash flags. As an aside, I'm not sure that I agree with the claim that making coinbases have inputs is a simple modification... as we use one of the inputs already as the special coinbase field and at least that must be special cased. ------------------------------------------------------------------------------ Dive into the World of Parallel Programming! The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net _______________________________________________ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development
