Description: The justifiable expectation in the context of smart contracts refers to the reasonable belief that one of the parties involved will fulfill its contractual obligations. This concept is fundamental for establishing trust between the parties, as it allows each of them to act with the assurance that the other will comply with what has been agreed upon. In the realm of smart contracts, which are self-executing agreements with the terms of the contract directly written in code, the justifiable expectation becomes an essential pillar. This is because, being based on blockchain technology, smart contracts offer transparency and security, reinforcing trust that the agreed-upon conditions will be met without the need for intermediaries. The justifiable expectation also implies that the parties must act in good faith and with the intention to fulfill their obligations, which is crucial for the success of any agreement. In summary, this concept not only refers to trust in the fulfillment of obligations but also establishes an ethical and legal framework that guides interactions between parties in various contractual agreements, including those facilitated by technology.