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454a3867e5
The latest version of the BIP doesn't use inversion, but does use bitshifts. It also uncovered a bug in the test scripts: the block timestamps creep forward when we generate large numbers of blocks (UpdateTime insists it be > GetMedianTimePast() so it's valid). We need to take this into account when waiting for the median to move (reduced it from 60 to 30 seconds, since that adds about 14 seconds). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
These are standard bitcoin manipulation routines which should be provided by any normal bitcoin library in whatever language you choose. The ones here are standalone ones taken from bitcoin core and some I wrote, many taken from bitcoin-iterate and pasted in here.