If a house's title is transferred by contract assignment, where I can obtain assignment price?

[mfmfmf]

Consider this scenario:  In the city of Vancouver, a person sells his house to Buyer A for $2m.  Not long afterwards, Buyer A assigns the contract to Buyer B for $3m.  Is that $3m price recorded into a publicly accessible database somewhere (i.e. BC Assessment, Landcor, MLS, etc.)?  Or would all the current systems only record the initial $2m price?