What Cryptographic Principle Underpins the “Commit” Phase of the Scheme?

The "commit" phase is underpinned by the cryptographic principle of a one-way hash function. This function takes the transaction details as input and produces a fixed-size, unique hash (the commitment).

It is "one-way" because it is computationally infeasible to reverse the hash to find the original details, thereby keeping the transaction specifics secret until the reveal phase.