With the MimbleWimble design [1] [2], inputs may be cancelled against the outputs they spend, with no loss of security. Essentially, the entire blockchain histo

With the MimbleWimble design [1] [2], inputs may be cancelled against the outputs they spend, with no loss of security. Essentially, the entire blockchain history may be collapsed to a single mega transaction, with all coinbases as inputs and the UTXO set as outputs. [1] http://mimblewimble.cash/20160719-OriginalWhitePaper.txt http://mimblewimble.cash/20160719-OriginalWhitePaper.txt [2] https://www.youtube.com/watch?v=ovCBT1gyk9c https://www.youtube.com/watch?v=ovCBT1gyk9c