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With over 1000 public and private Blockchains (coinmarketcap.com, 2020) an acceptance model can facilitate an objective and comparative assessment of existing and future solutions.  The paper outlines an assessment framework based on Unified Theory of Acceptance and Use of Technology (UTAUT) (Venkatesh et al. (2003)) using distinguishing characteristics of blockchain implementations: trust, utility, and support. Trust is one of the promises of Blockchain (Economist, 2015) and a paramount construct of a decentralized autonomous software architecture. Utility are the functional attributes of the software architecture, while support are the nonfunctional attributes. Utility includes scalability and security that align with the UTAUT constructs performance expectancy and effort expectancy.  Support includes governance and ecosystem that align with the UTAUT constructs facilitating conditions and social influence. The distinguishing characteristics trust, utility, and support in the context of UTAUT are beneficial for comparing and evaluating the myriad of blockchain implementations.  The research encourages the examination of existing and future solutions using the UTAUT-focused attributes. The research has broader implications for blockchain solutions by providing contextual constructs necessary for use and adoption. With over 1000 public and private Blockchains (coinmarketcap.com, 2020) an acceptance model can facilitate an objective and comparative assessment of existing and future solutions.  The paper outlines an assessment framework based on Unified Theory of Acceptance and Use of Technology (UTAUT) (Venkatesh et al. (2003)) using distinguishing characteristics of blockchain implementations: trust, utility, and support. Trust is one of the promises of Blockchain (Economist, 2015) and a paramount construct of a decentralized autonomous software architecture. Utility are the functional attributes of the software architecture, while support are the nonfunctional attributes. Utility includes scalability and security that align with the UTAUT constructs performance expectancy and effort expectancy.  Support includes governance and ecosystem that align with the UTAUT constructs facilitating conditions and social influence. The distinguishing characteristics trust, utility, and support in the context of UTAUT are beneficial for comparing and evaluating the myriad of blockchain implementations.  The research encourages the examination of existing and future solutions using the UTAUT-focused attributes. The research has broader implications for blockchain solutions by providing contextual constructs necessary for use and adoption.

Blockchain, Distributed Ledger Technology, Information Systems