###### Abstract
Trust is a pivotal factor in the consumers' inclination to embrace technologies and services [22] as it aids in mitigating perceived risks and uncertainties associated with them, hence augmenting customers' levels of acceptance and intention to adopt [23; 24]. Another critical component that must be considered before adopting innovative technologies is the acceptance of users [2; 9; 25; 26]. Several models and frameworks have been established to elucidate the user adoption of innovative technologies, highlighting aspects that can influence user acceptance due to the significance of this phenomenon. Investigating the factors that impact user adoption of information technology is a subject of interest for scholars across all disciplines and technology procurers working with big organisations [27]. According to [28], user acceptance is crucial in effectively deploying information systems, as users may not always be receptive to adopting innovative technologies. Although trust and acceptance are widely acknowledged as crucial, the prevailing literature considers them separately in technology adoption studies. Trust is looked at from a psychological perspective and considered a subjective belief [29] that is based on confidence [3], past experiences [30; 31], and evidence [29]. At the same time, acceptance is more of a behavioural intention to use the technology [32; 33]. Therefore, it is crucial to have an integrated model as it will help to understand users' behaviour. It addresses the factors that build trust and drive users' acceptance of blockchain adoption. The absence of an integrated framework that effectively examines the combined effects of these factors gives rise to a noticeable gap in blockchain adoption in digital payment systems. From the literature, there is an apparent lack of studies or systematic reviews conducted to understand the factors influencing the consumer's trust in and acceptance of the adoption of blockchain technology [2] in digital payment systems. This study was conducted with the following questions to contribute to the literature. **RQ1**: What are the factors that influence users' trust in the adoption of blockchain in digital payment systems? **RQ2**: What are the factors that influence users' acceptance of the adoption of blockchain in digital payment systems? **RQ3**: How can the trust model be integrated into the acceptance model for blockchain adoption in digital payment systems?In the following sections, we explore the theoretical foundations, methodological strategies, and empirical insights that form the basis of incorporating trust and acceptance models in the context of blockchain adoption for digital payment systems. Using thematic analysis, this study will be conducted from the following research themes: (i) factors that influence the user's trust for blockchain adoption and (ii) factors that influence the user's acceptance of blockchain adoption. By exploring this interdisciplinary environment, we aim to make a meaningful contribution to understanding the factors that could lead to trust in and acceptance of the adoption of blockchain in digital payment systems. This will contribute to a thorough understanding of significant factors that influence the future adoption of blockchain from the user's perspective and will lead to a (iii) proposal of the integrated model of trust and acceptance model for blockchain adoption in digital payment systems.