types: constrain unburn address by block height
The unburn address can spend coins from burn address only at block heights within [UnburnStartBlockHeight, UnburnStopBlockHeight).
The valid range is set to [250k, 300k).
Edited by Boris
The unburn address can spend coins from burn address only at block heights within [UnburnStartBlockHeight, UnburnStopBlockHeight).
The valid range is set to [250k, 300k).