These commitments do not introduce any delay in making binding offers or bids, since otherwise trading would be affected. Multiple decentralized matcher nodes, selected by the smartphones, post the offers and bids are incentivized behind the scenes to check everything against the LQF blockchain. The proof concept is simply that the more significant the effort to discredit the system, the more revenue the attackers provide the system and the more compensation for inconvenience and evidence of robustness against rational attackers is generated.

(Without property 3: Users waste time; users miss opportunities; the system could be blackmailed or taken down; the system is rendered unattractive for mainstream use.)