PPLNS with job declaration

[sjors]

@sjors

The best way to fully check if the proposed block is valid is by having the node verify it just like any other block, but without checking the PoW. There’s currently no RPC method to do this, e.g. submitblock requires proof-of-work. It may be useful to introduce such a method though.

Here’s a proof-of-concept implantation of a checkblock RPC for Bitcoin Core:

rpc: checkblock

It can be used with block templates, which don’t have any proof-of-work. But it also has multiplier argument that can be used to raise the target for weak blocks, inspired by @instagibbs work in Second Look at Weak Blocks (though a different use case).