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Review

A Narrative Review and Gap Analysis of Blockchain for Transparency, Traceability, and Trust in Data-Driven Supply Chains

by
Mitra Madanchian
1,* and
Hamed Taherdoost
1,2
1
Department of Arts, Communications and Social Sciences, School of Arts, Science and Technology, University Canada West, Vancouver, BC V6Z 0E5, Canada
2
GUS Institute|Global University Systems, London EC1N 2LX, UK
*
Author to whom correspondence should be addressed.
Appl. Sci. 2025, 15(17), 9571; https://doi.org/10.3390/app15179571 (registering DOI)
Submission received: 22 July 2025 / Revised: 15 August 2025 / Accepted: 25 August 2025 / Published: 30 August 2025
(This article belongs to the Special Issue Data-Driven Supply Chain Management and Logistics Engineering)

Abstract

The increasing complexity and digitization of modern supply chains have created an urgent demand for transparent, traceable, and trustworthy systems of data management. Blockchain, with its core features of immutability, decentralization, and smart contracts, has emerged as a promising solution for strengthening data-driven supply chain operations. This paper presents a narrative review synthesizing insights from academic research, industry reports, and regulatory documents to examine blockchain’s role in enhancing transparency, traceability, and trust. References were identified through targeted searches of major databases and gray literature sources, with emphasis on diverse sectors and global perspectives, rather than exhaustive coverage. The review maps how blockchain’s technical capabilities—such as data integrity preservation, access control, automated validation, and provenance tracking—support these outcomes, and assesses the empirical indicators used to evaluate them. A sectoral applicability analysis distinguishes contexts in which blockchain adoption offers clear advantages from those where benefits are limited. The review also identifies critical research gaps, including inconsistent definitions of core concepts, insufficient interoperability standards, overreliance on subjective performance measures, and lack of longitudinal cost–benefit evidence. Finally, it proposes directions for future research, including the development of sector-specific adoption frameworks, integration with complementary technologies, and cross-border regulatory harmonization.

1. Introduction

Digital transformation has become a major driver for organizations seeking a competitive edge in the rapidly evolving global market of the day [1]. For supply chain management, digital transformation translates into adopting technologies at the bleeding edge to achieve efficiency, visibility, resilience, and sustainability [1,2,3]. The shift reimagines supply chains from traditional models to digitally empowered settings [4]. Digital transformation for supply chain management involves implementing Industry 4.0 technologies to replace traditional practices with new ones that are inspired by digital [3,5]. This encompasses varied technologies such as artificial intelligence (AI), machine learning, Internet of Things (IoT), cloud computing, blockchain, robotic process automation, and big data analytics [3,4,6]. The objective is to design a more responsive, flexible, and perceptive supply chain [2]. This enables better decision making, better use of resources, and increased customer satisfaction [1].
Managing data in a systematic way allows a firm to respond fast to market demands and enhance customer satisfaction. For instance, the utilization of Six Sigma methods in suppliers’ development has been proven to improve quality and reduce supply chain costs [7]. This strategy places a strong focus on data for measuring supplier performance and facilitating continuous improvement. Though the benefits are many, the transition to data-driven supply chain management is fraught with challenges. Organizations typically find it difficult to form close relationships with suppliers, which are key to effective supply chain management [8]. Reliance on data sometimes leads to a schism between organizations and partners because the focus is on technical metrics rather than qualitative relationships.
Trust is a key component in supply chain management, particularly because organizations are sharing sensitive data with partners. Onolaja et al. [9] propose a dynamic trust management system that employs past and present information to assess the reputation of supply chain partners. The initiative aims at minimizing data sharing risks and maximizing cooperation. The relationship between trust and big data is complex. Sänger et al. [10] demonstrate how plenty of trust data can be employed to develop future-proofed trust management systems. However, the quality and sources of data are crucial; only when data is trusted will organizations embrace data-driven solutions.
Blockchain technology offers a decentralized, tamper-proof ledger that can potentially enhance trust in supply chain management by presenting transparent and verifiable records of transactions. Blockchain offers the capability of direct transactions between parties without an intermediary, establishing a distributed model of trust based on network participant consensus [11]. With visibility, fraud risk can be greatly reduced while enhancing accountability in the supply chain. Each transaction placed on a blockchain is time-stamped and linked to previous transactions, creating a complete audit trail. This feature is particularly useful to businesses in sectors where product origin is most important, such as food safety and pharmaceuticals. Blockchain has the potential to provide accurate and trustworthy transaction infrastructure to enable real visibility to supply chain partners [12].
Blockchain also enables the use of smart contracts, which are self-enforcing contracts where the terms of the deal are embedded directly into code lines. Smart contracts make many of the supply chain processes automated, maintaining manual intervention where there is none and avoiding disputes. Control automation using smart contracts can enhance operational efficiency and further enhance trust between parties [13]. Several systematic reviews have explored the implications of blockchain technology in supply chain management and logistics (Table 1).
To complete the existing gaps in literature, future research would have to endeavor to develop overarching frameworks linking transparency, traceability, and trust to operating metrics for logistics. Comparative studies across different sectors can provide interesting observations into the applicability of blockchain solutions and challenges that arise in the implementation process.
While previous studies have highlighted the transformative potential of blockchain across various supply chain functions, they often treat transparency, traceability, and trust either collectively or superficially, without dissecting their individual roles and interdependencies. Despite widespread enthusiasm, empirical clarity regarding the measurable impact of blockchain on these three pillars remains limited and fragmented. This review addresses these gaps by conceptually distinguishing transparency, traceability, and trust as separate yet interlinked outcomes of blockchain-enabled supply chain systems. This article uses a narrative review to synthesize academic ideas. This method integrates conceptual, technological, and regulatory factors into a cohesive synthesis that reflects current trends and gaps. It further synthesizes recent empirical findings with a focus on quantitative metrics, aiming to evaluate how blockchain capabilities contribute to each pillar. The paper also offers a function-oriented analysis of blockchain’s operational mechanisms in data-driven environments and identifies current limitations and future research needs for both scholars and practitioners.

2. Technological and Conceptual Foundations

2.1. Blockchain Capabilities for Supply Chain Data Integrity

Decentralization is a core feature of blockchain technology, and it enables various stakeholders to access and verify information without relying on a central authority. This provision is particularly important in supply chains as numerous stakeholders are involved in the production and distribution of products. Blockchain technologies employ a shared ledger to enhance transparency and trust among supply chain partners, enhancing data management [22,23,24].
Utilization of blockchain in supply chain transactions facilitates the generation of irreversible accounts, shared with all who are involved. Openness encourages accountability, and at the same time reduces fraudulent practices as well as reporting errors of information. For instance, the use of smart contracts, autonomous contracts in which the terms of the agreement are written directly into code, can make various processes automatic, so that transactions are only processed when pre-determined conditions have been met [25,26].
One of the most valuable advantages of blockchain technology is its ability to improve data accuracy. As per the traditional supply chain process, data ends up being siloed within various entities. Blockchain addresses this by having a single source of truth that everyone can trust directly. This aspect is particularly critical in the food and pharmaceutical sectors, where traceability and authenticity are very crucial [23,27].
For example, in the food industry, blockchain allows the history of foods, from farm to plate, to be traced, with the guarantee that the consumers receive valid information about the origin and quality of food being consumed [28,29]. This traceability not only enhances consumer confidence but also allows companies to comply with regulations, thereby enhancing accountability in the supply chain [30,31].
The capacity of blockchain technology to automate increases supply chain efficiency. Automating operations and reducing the role of intermediaries, blockchain can reduce transaction time and lower costs. The integration of blockchain with IoT devices, for instance, can track goods in real-time, supporting anticipatory decision making and removing delays [32,33].
The use of blockchain within supply chain financing is able to overcome accounting and assurance barriers, facilitating smoother financial flows and overall improved governance [34]. The ability to automate various elements within supply chain management not only enhances the performance of operations but also allows companies to respond more effectively to shifting markets and consumer demands [35,36]. Figure 1 shows how blockchain connects to core components of data-driven supply chain management (data acquisition, storage, decision making, execution).

2.2. Functional Linkages to Transparency, Traceability, and Trust

Transparency, in supply chains and other value chains, refers to access by authorized parties to information about processes, transactions, and data [37,38]. Blockchain technology facilitates transparency by constituting a distributed ledger system, where all transactions are noted in a block and linked to the prior block, creating a chronological and immutable record [39]. This shared ledger is accessible to all the sanctioned participants, providing one source of truth and eliminating information asymmetry [40,41]. Blockchain has the ability to create end-to-end traceability of product paths, from source to consumer, making it possible for all interested parties to see the same information on product origin, handling, and distribution [11,37,38]. This is especially important in the food sector, as consumers require assurances regarding the safety and authenticity of products [16,42,43].
Traceability is the ability to follow a product or information item in its entire life cycle [37,38]. The immutability and time-record keeping of blockchain make it an ideal tool for ensuring traceability in complex systems [44,45]. Any transaction or event is logged on the blockchain with a date, which can be traced back to the initial item and present state [40]. Blockchain allows food products to be traced from production to consumption, which informs consumers about food origin, processing, and handling that they ingest [16,37,40]. Traceability provided by blockchain is an added advantage to the connection between environmental standards and ecological sustainable practices in supply chains. Blockchain integrated with IoT and sensors can further shape supply chain governance mechanisms, standards, and sustainability practices [46].
Trust is a critical element of any system, particularly for advanced supply chains with various stakeholders [47,48]. Blockchain establishes trust by creating a decentralized and open environment where every stakeholder receives access to the same information [49]. The impossibility of changing the blockchain guarantees that data cannot be tampered with, thus also increasing trust between stakeholders [44,50]. Blockchain’s consensus protocols such as Proof-of-Work or Proof-of-Stake ensure that transactions are verified by multiple nodes in the network before they are included on the blockchain [51]. Decentralized verification makes a central authority redundant, reducing manipulation risk and increasing trust in the system [11,52].
Blockchain builds trust among supply chain stakeholders with a secure and transparent platform for information exchange [51,53]. It is equally essential in industries where trust is needed as a means to guarantee product quality and safety [16,37]. In closed-loop supply chains, blockchain bridges the gap between trust, traceability, and transparency and improves control in waste movement and product returns management processes [51]. Figure 2 illustrates how key blockchain functions contribute to improving specific supply chain capabilities, such as visibility, accountability, responsiveness, and data resilience.

3. Theoretical Dimensions of Transparency, Traceability, and Trust

The foundational principles of transparency, traceability, and trust form a triad of critical attributes in the context of modern supply chain systems, particularly those enhanced by blockchain technologies. While often used interchangeably, these concepts possess distinct operational meanings and strategic implications. Understanding the unique inputs, blockchain enablers, and performance indicators associated with each concept is essential for designing robust, ethical, and efficient supply chain systems. The unique and overlapping operational definitions and enablers of transparency, traceability, and trust in supply chain systems are illustrated in Figure 3.

3.1. Transparency

Visibility of data in real-time is essential for modern supply chains, facilitating stakeholders to track the movement of goods and information in real time. Shared ledgers, particularly through blockchain technology, provide this visibility by establishing an unalterable record of transactions accessible to all authorized parties. Blockchain facilitates transparency through the capability of all stakeholders to view transactions in real time, reducing the reliance on intermediaries and ensuring trust [54]. The concept of visibility of communication advocates for making invisible interactions in the past visible to enhance metaknowledge among the employees [55].
One of the primary advantages of blockchain technology is that audits can be conducted without resorting to third parties. Xu et al. [56] propose a transparency framework that employs blockchain to verify third-party services as reliable. Organizations can automate accountability and ensure users participate in audit procedures with the help of smart contracts and decentralized ledgers. This not only enhances security but also reduces the risk of fraud and error within the supply chain. The LUCE platform, as described by Urovi et al. [57], is a demonstration of how blockchain technology can make data sharing accountable and compliant. By making data use fully transparent after sharing, LUCE addresses the issues of tracing data once it has been transferred to third parties.
The incentive to be transparent in supply chain management emanates from a plethora of incentives and disincentives. Firms’ attention towards transparency can generate stronger customer and partner trust and stronger regulatory compliance. For instance, the integration of blockchain with SAP systems, researched by Ravi and Jampani [58], illustrates how transparency can reduce fraud and data inconsistencies costs and enhance efficiency to a maximum.
There also exist, however, disincentives to transparency. Organizations may fear opening up sensitive data or competitive advantages, so there is reluctance to initiate open practices. The installation costs of new processes and technologies deter organizations from initiating transparency efforts.

3.2. Traceability

Provenance tracking is tracing the origin and route of a product along the supply chain. It is of most significance in industries such as food and pharmaceuticals, where product authenticity and safety need to be guaranteed. Recent studies have identified the potential of blockchain technology to scale provenance tracking through an unalterable transaction and event record along the supply chain. For instance, Kim and Laskowski [59] discuss how blockchain facilitates high-grained provenance analysis, particularly in complex supply chains with numerous organizations and geographies.
Integration of IoT devices with blockchain will be able to further enhance provenance tracking by offering real-time data on the status and whereabouts of products. Powell et al. [60] emphasize that while blockchain offers a secure means of storing data, the quality of data captured through the use of IoT devices is critical in ensuring the integrity of provenance information.
Physical and virtual supply chain convergence is essential towards achieving end-to-end traceability. Technologies such as radio frequency identification and blockchain can be combined to provide an uninterrupted link between the physical product flow and its virtual equivalent. For example, Frankó et al. [61] propose a strong identification protocol that uses radio frequency identification technology to track assets in smart manufacturing settings, hence enhancing logistics performance and traceability.
Converging physical tracking technologies with blockchain can improve raw material supply chain transparency. Bacchetta et al. [62] demonstrate how the convergence of the two technologies can enable improved tracking of raw materials, which in turn can improve supply chain transparency as well as stakeholder trust.
Serialization and batch tracking are of paramount importance in achieving effective traceability, especially in industries with large-scale production. Serialization entails assigning distinct identifiers to a single product, while batch tracking recognizes batches of products produced in tandem. Westerkamp et al. [63] put forth a blockchain-based traceability system for a supply chain founded on smart contracts in order to create immutable recipes, being a representation of product compositions, so the ingredients and their transformations through manufacturing processes could be traced effectively.
Data anchoring is also a prime component of traceability, ensuring that data in electronic systems correctly aligns with real products. For food supply chains, this is particularly critical because traceability back to ingredients can help avoid issues related to food fraud as well as food safety. Qian et al. [64] review many approaches to implementing traceability in food processing, emphasizing the combination of different approaches to enhance granularity and reliability.

3.3. Trust

Trust is classified into three broad dimensions, which are trust in data, trust in actors, and trust in processes. Trust in data refers to the reliability and honesty of data being applied in decision making. Trust has been found to be one of the vital factors contributing to regional development and technology transfer in economic geography, connecting the spatial challenges with social and economic conceptualizations of trust [65]. Trust in processes refers to systems and processes that manage interactions, for instance, procurement processes in construction projects. From studies, it is clear that overemphasis on price and control in procurement disempowers trust, which suggests that there has to be a balance between trust and control to ensure proper governance [66].
Blockchain technology and smart contracts have ushered in a paradigm change in the establishment and maintenance of trust. Smart contracts aim to replace conventional centralized powers with code-based, decentralized agreements that, in return, construct trust into their design. Blockchain systems are referred to as “trustless”, where they do not require putting any central authority into trust, since the technology itself ensures transparency and accountability [67].
However, practical implementation of blockchain shows complexity. One instance of this is the manner in which blockchain can be implemented to facilitate trust in transactions, but social problems remain, as in the case of cryptocurrency where trust relationships between users and developers are influenced by a set of factors [68]. Trust is not merely technical; it is also a social phenomenon, albeit influenced by cultural context and interpersonal relations. Wright et al. argue that by constructing trust as a social entity, it can be recognized as having fluidity and narrative nature [69]. The technical and social trust dynamics are observed in sociotechnical systems where trust is architecturally and cognitively perceived. This dual strategy allows for a richer appreciation of how trust operates in complex systems, within which interdependencies between actors are made possible through trust relations [70,71].

4. Blockchain Capabilities in Supply Chain Data Operations

By leveraging distributed ledgers, consensus protocols, and smart contracts, blockchain systems provide an auditable and tamper-proof environment for recording transactions and verifying asset flows. This technological foundation directly supports the operationalization of the core principles introduced earlier, ensuring data integrity, enhancing inter-organizational collaboration, and mitigating risks related to fraud, counterfeiting, and opacity. Figure 4 shows how blockchain interacts with various data sources and supply chain entities to support secure information flow. This section explores how blockchain architecture enables these outcomes, with a focus on practical implementations, key performance metrics, and strategic value creation across diverse supply chain sectors.

4.1. Data Integrity and Validation

Traditional supply chain networks are usually marred by data manipulation, fraud, and lack of transparency, which equate to significant operating inefficiencies and loss of trust between partners [72,73]. Blockchain technology addresses these issues by providing a decentralized record book that saves transactions securely and in a tamper-proof manner. Each transaction is connected to the prior transaction with the help of cryptography, and the set of blocks creates an immutable chain that can be confirmed by all players in the network. Through this method, information inscribed on the blockchain cannot be erased or changed without the consensus of the network, thereby preserving its integrity [74,75].
Several studies have proposed the practical application of blockchain technology in enhancing data integrity in supply chains. For instance, Kerschbaum [72] shares the usage of public-key-encrypted Bloom filters to verify supply chain data while maintaining privacy. The presence of the data can be verified by authorized individuals without revealing sensitive information, thereby providing integrity and confidentiality.
The application of smart contracts on blockchain technology has been proven to secure and automate transactions and enhance data integrity. Koirala et al. [76] outline a model that employs smart contracts to provide ownership and traceability within supply chains and illustrate how blockchain technology can make administrative processes easier and reduce fraud risks. Shetty et al. [77] illustrate how a blockchain system can ensure the integrity of personal health data through record anchoring on an unhackable ledger. Not only does this protect sensitive information, but it also ensures a permanent record of data integrity accessible to authorized parties.

4.2. Decentralized Identity and Access Control

The use of decentralized identifiers enables users to authenticate and manage their access to various resources throughout the supply chain. In addition to enhancing security, this approach ensures legitimate parties have access to sensitive information only, thereby solving privacy problems typical in standard centralized systems [78,79].
Access control is extremely critical in supply chains, where sensitivity of the data requires them to be protected from unapproved access. Traditional access control models suffer from scaling and security problems, particularly in large environments with a large number of stakeholders. Blockchain technology introduces novel paradigms of access control that utilize smart contracts and attribute-based access control (ABAC) models. One such implementation is the Access Chain framework, which deploys a dual-ledger approach to dynamically manage access privileges. Fine-grained access control is offered by this framework to ensure access to only authorized data by authenticated users while ensuring network scalability [79]. Multiauthority attribute-based access control schemes have also been proposed for enhanced security and privacy in multi-authority blockchain-based information sharing, with multiple authorities governing user attributes and access permissions effectively [80].
The decentralized nature of blockchain naturally improves security by eliminating points of failure. All transactions are recorded on a network of ledgers, hence making it virtually impossible for hackers to alter data without the agreement of the network. Transparency is crucial in supply chains, where the trust of participants takes precedence over everything. Blockchain can integrate advanced cryptographic techniques to ensure sensitive information remains secure. For example, the use of zero-knowledge proofs allows for the verification of transactions without compromising on underlying information, thus enhancing privacy while maintaining integrity in shared information [81,82]. This is particularly useful in sectors like healthcare, where patient data should not be disclosed but access should be provided to stakeholders who need it [83,84].
Certain case studies illustrate the practical applications of blockchain in decentralized identity and access control in supply chains. For instance, utilization of a blockchain-based identity management system for disaster relief has identified how decentralized identity can make relief and resources easily accessible to refugees so that only legitimate individuals receive help [85]. Within the agricultural sector, blockchain has been utilized to roll out a data system to enhance traceability and security along the supply chain. It facilitates secure sharing of information between consumers, distributors, and farmers, where all the stakeholders obtain access to information they need without exposing sensitive information [82,86].

4.3. Automated Transactions and Smart Contracts

The application of smart contracts to supply chains has been proven to drastically improve operating efficiency. For instance, in vendor-managed inventory, smart contracts enable real-time data sharing and automatic processing of replenishment, which can lead to cost reduction and an improved service level [87]. In the pharmaceutical sector, smart contracts can support complex interactions among multiple stakeholders, with guaranteed compliance and long traceability of drug products [88].
Use of smart contracts in agricultural supply chains has also demonstrated the ability to enhance traceability and responsibility. Through the maintenance of every transaction related to agricultural products on a blockchain, parties can easily trace the origin and history of products, thus guaranteeing quality and safety [89]. This is particularly critical where consumer trust is the largest consideration, such as in the case of food and medicine.
There have been several reports of the practical uses of smart contracts in supply chain management. For example, it was proposed that a traceability platform for goods on a blockchain system would address transparency and accountability challenges in food safety [90]. Smart contracts are employed by such a system to mark each transaction on a distributed ledger so that tracking goods from farm to plate is easy.
The COVID-19 pandemic highlighted that having robust supply chain solutions is important. A blockchain solution through smart contracts was intended to run the supply chain of personal protective equipment such that transactions would be traceable and secure [84]. The solution improved visibility but also facilitated faster response times during times of acute shortage.

4.4. Interoperability and System Integration

The fact that data management systems cannot interoperate is a major discourager of traceability operations in supply chain management [91]. This can be best observed within multimodal transportation activities, where heterogeneous systems must communicate to track products effectively. Karan and Irizarry [92] emphasize the need for a spatial data platform that unifies various data sources, like building information modeling and geographic information systems. This infrastructure not only enhances data exchange but also supports spatial analysis, which is critical in logistics and supply chain management. The integration of these technologies supports a more integrated operational environment, allowing stakeholders to make informed decisions through real-time information.
Blockchain technology offers a robust solution for interoperability problems in supply chains. By offering a decentralized, immutable ledger, blockchain enables secure and transparent data sharing among all stakeholders in the supply chain. Transparency builds trust and collaboration, which are crucial in enabling supply chains to function correctly. For instance, Montes et al. [93] refer to the way IBM utilized blockchain to mechanize supply chain functions, reducing transaction times significantly and making operations more efficient. Utilizing blockchain in supply chain management can strengthen coordination and information-sharing capabilities. Interoperating blockchain technology without interruptions in supply chain systems improves operational-level capabilities, leading to improvements in performance metrics such as process efficiency and quality compliance [94].

4.5. Governance and Stakeholder Collaboration

Blockchain technology enhances governance by having a tamper-proof and decentralized ledger that records all transactions in an open format. Transparency using the technology fosters stakeholder trust as all the stakeholders can authenticate and validate data integrity without relying on a central entity. The ability to track and trace the product throughout the supply chain also helps to fulfill environmental, social, and governance (ESG) criteria, which are gaining more prominence in the eyes of stakeholders [95].
Collaboration among stakeholders is important towards creating operational efficiencies and supply chain sustainability. Blockchain enables such collaboration through the facilitation of real-time data sharing and communication among all stakeholders involved. This aspect proves beneficial in complex supply chains, where multiple stakeholders must cooperate in their behavior to enable smooth operations. Research has determined that blockchain can significantly increase stakeholder interaction and collaboration by reducing information asymmetry and enhancing trust [73,96]. For instance, in the renewable energy sector, blockchain ensures stakeholders can validate the origin of materials and certify compliance with sustainability standards, thereby encouraging collaboration among manufacturers, suppliers, and buyers [95].
Incorporating cultural intelligence into blockchain governance also improves cooperation. Awan et al. [97] explain that cultural intelligence in intercultural relations in supply chains is essential, and businesses with higher cultural intelligence are more likely to employ blockchain for cooperative activities.

5. Synthesis of Quantitative Findings

Empirical research over the past decade has developed various metrics to quantify transparency, traceability, and trust outcomes in organizations and supply chains. Studies often construct composite indices/scores (e.g., transparency score, trust index, traceability score) or measure concrete outcomes (e.g., time-to-trace, audit counts, defect rates) using survey data, experiments, or system logs. For example, Crepaz & Arikan [98] used a controlled experiment to show that higher policy “transparency” (through information disclosure) raised an aggregate political trust score among participants (mean trust rose from ~0.532 to 0.557 in the high-transparency group). Similarly, blockchain-based traceability interventions in supply chains have been found to sharply improve trust metrics and trace metrics. One study of blockchain in food and auto supply chains reported that a consumer trust index climbed from ~0.50 to ~0.85 after implementing traceability technology [99], while traceability time was cut by two-thirds (e.g., from 72 h to 24 h) and counterfeiting rates halved [100]. Surveys of consumers and managers repeatedly find positive correlations between information transparency (or traceability) and trust: for instance, supply-chain transparency (via accurate, timely data) was shown to significantly boost consumer trust and purchase intent [101]. In finance and governance, “transparency scores” of reports or disclosure practices correlate with stakeholder confidence: effective audits and open reporting reduce information asymmetry and increase investor confidence [102]. In short, quantitative metrics—transparency indices, trust indices, trace delays, audit frequency, etc.—consistently show that higher transparency/traceability associates with higher trust and performance (Table 2).
  • Transparency metrics. Many studies define a composite transparency score or index (often on a 0–1 or 0–100 scale) based on reported information. For example, country or organizational transparency indices (analogous to the Open Budget or Corruption Perception indices) are used in policy studies [98,102]. Higher scores indicate more open reporting. In audit-focused work, “transparency” is often operationalized by the degree of disclosure in financial statements; firms with higher audited-report transparency tend to earn higher stakeholder trust [102,103]. In practice, transparency metrics might count disclosed items or use survey scales (e.g., Likert ratings of perceived disclosure).
  • Traceability metrics. Traceability is frequently measured by trace delays, traceability time, or a traceability index. For instance, researchers may record the elapsed time to trace a product from shelf to source, or use checklists to rate the percentage of supply-chain stages that are trackable. In a case study of blockchain deployment, the average traceability time dropped from 72 h to 24 h (a 66.7% reduction) [100]. Other work uses an abstract traceability score (e.g., 1–10) to reflect how fully products can be tracked; one multi-industry survey reported a pre- vs. post-blockchain traceability score change from 5.4 to 8.6 [104]. Supply-chain reviews also track related metrics like reductions in counterfeit incidence or product recall frequency under improved traceability regimes [100,104].
  • Trust metrics. Trust outcomes are often quantified via trust indices or scales. Studies commonly survey participants or consumers and compute an aggregate trust score (e.g., 0–10 or 0–100) representing confidence in an organization, brand, or supply chain. For example, Crepaz and Arikan combined multiple trust-related questions into a political trust index [98]. In supply-chain contexts, scholars have defined a Consumer Trust Index (CTI) to gauge trust in product provenance. Nalini et al. (2024) measured the CTI before and after blockchain-based milk traceability for two dairy brands: the CTI rose from ~0.50 to ~0.85 (on a 0–1 scale) with the new system [99]. Another study reported a trust index rising from 4.8 to 7.9 (on a 0–10 scale) following blockchain adoption, alongside fraud rates dropping from 10% to 2% [104]. In field surveys, consumers generally indicate significantly higher trust in products or companies that offer greater visibility. Nguyen and Nguyen (2025) found that transparency and traceability in Vietnamese food supply chains had strong positive effects on consumer trust [101].
Table 2. Selected empirical studies and their quantitative transparency/traceability/trust metrics and outcomes. (Metrics shown illustrate measurement scales or baseline→post-treatment changes).
Table 2. Selected empirical studies and their quantitative transparency/traceability/trust metrics and outcomes. (Metrics shown illustrate measurement scales or baseline→post-treatment changes).
StudyMetric(s)Data/MethodOutcome (Change/Correlation)YearSector
Crepaz & Arikan (2023) [98]Political Trust Index (0–1 scale)Lab experiment/surveyMean trust ↑ from 0.532 (control) to 0.557 (high info)2023Public (govt. policy)
Nguyen & Nguyen (2025) [101]Consumer trust (survey scale); transparency/traceability factorsOnline survey + PLS-SEMGreater transparency/traceability → higher consumer trust and buying intent2025Food supply chain
Nalini et al. (2024) [99]Consumer Trust Index (CTI, 0–1 scale)Field pilot (IoT and blockchain in dairy)CTI ↑ from ~0.50 to ~0.85 after blockchain traceability2024Dairy supply chain
Kumar (2024) [100]Traceability time (h); Consumer Trust Index (0–10); counterfeit incidence (%)Mixed: surveys (120 SC managers), case studiesTraceability time ↓ 72 h→24 h; Trust index ↑6.5→8.2 (±0.3); counterfeits ↓15%→5%2024Automotive supply chain
Radhika et al. (2025) [105]Customer Trust Index (0–100); blockchain adoption score (0–1)Case comparisons (blockchain vs. control)Trust Index avg. ≈68.4; correlated positively with blockchain use; higher trust → higher recycling rates2024Circular economy/manufacturing
Kannaa and Akram (2025) [104]Traceability score (1–10); Trust Index (0–10); fraud incidence (%)Cross-industry survey (50 firms)Traceability score ↑5.4→8.6; Trust Index ↑4.8→7.9; fraud ↓10%→2% post-blockchain2025Mixed (manuf., agri., med.)
Allee et al. (2019) [103]Disclosure transparency (binary/score)Archival (govt. financials)“High-trust” agencies more likely to report errors transparently, showing trust fosters disclosure2019Public finance
Anjani (2023) [102]Audit effectiveness (qualitative)Lit. review/case examplesEffective audits reduce asymmetry, and boost stakeholder confidence and credibility2023Financial auditing
Most studies combine quantitative surveys or experiments with metric construction. Strengths include the use of controlled experiments (e.g., Crepaz and Arikan’s randomized transparency treatments [98]) and objective pre/post measures (e.g., trace time logs [100]). Mixed-method designs (surveys plus case studies) add depth, as in the automotive blockchain study [100]. Many employ structural equation modeling or regression to validate links between transparency/traceability and trust.
However, limitations abound. Self-reported trust/transparency indices can suffer subjective bias and vary by context. Survey samples are often small or localized (e.g., 430 Vietnamese consumers [101], 120 supply-chain professionals [100]), limiting generalizability. Most work is cross-sectional or single-intervention, making causal claims difficult (except where experiments are used [98]). Definitions and scales also vary widely—what one study calls the “traceability score” might be another’s “trace delay”—hindering comparison. Many studies focus on promising technologies (blockchain/IoT) or specific sectors (food/dairy, manufacturing), raising concerns of publication bias. Quantitative results often omit long-term dynamics: e.g., an initial rise in trust post-intervention may not persist.

6. Discussion

The prospects for blockchain adoption vary significantly across different industries. For instance, in the management of food supply chains, blockchain promises improvements in traceability and compliance with safety standards [106,107]. Nevertheless, industries like construction may face more significant barriers due to the complexity of stakeholder communication along with the traditional nature of the business [12]. Chang et al. [22] propose a blockchain-based supply chain process framework emphasizing the need for transparency and collaboration among the stakeholders. The framework illustrates how blockchain can facilitate a shared information ledger, promoting multilateral collaboration and accountability.
Blockchain has been hailed as a game-changing innovation in supply chain management, but its use is not universally applicable across all industries. The feasibility of blockchain adoption and value proposition depend on the character of the supply chain, regulatory imperatives, and the kind of products or services being handled. Table 3 outlines sector-specific blockchain applications, benefits, and limitations.

6.1. Barriers and Implementation Challenges

Despite the potential applications of blockchain in supply chain management, there are several challenges to its widespread adoption. The challenges vary from inter-organizational and intra-organizational barriers to technical limitations and exogenous factors such as regulatory compliance [114]. Cultural fit of blockchain solutions is one of the important determinants of their success in different industries [115]. Also, there is a lack of sector-specific adoption frameworks that align blockchain design with the unique operational, regulatory, and cultural contexts of different industries. Much of the literature discusses blockchain in broad terms, without adequately considering industry-specific constraints such as perishable product lifecycles, data privacy laws, or proprietary data sensitivity.

6.1.1. Technical Problems

Technical problems related to the application of blockchain technology in supply chains are significant. The most alarming of these problems is that system integration and design may be extremely complicated. Most companies find it difficult to adapt existing infrastructure to accommodate blockchain solutions, potentially resulting in interoperability issues and increasing cost [116,117]. The scalability of blockchain networks is an issue as most current solutions are not capable of managing the amount of transactions in a large supply chain [118].
The integration of blockchain with other emerging technologies, such as the IoT and AI, is necessary to tap into its full potential. Such adoption, however, has the tendency to require heavy monetary investments in emerging technologies as well as staff training, which could be a hindrance to most organizations [29,119]. High degrees of cybersecurity are also necessary, as the decentralized nature of blockchain can render organizations susceptible to new types of risks unless properly managed [120].

6.1.2. Organizational Issues

Organizational issues also play a significant role in applying blockchain technology to supply chains. Resistance to change is a daily problem because stakeholders may oppose the application of new technologies that disrupt existing procedures [119]. It is caused by ignorance of the possible benefits of blockchain, as well as the fear of investment costs [121].
The successful implementation of blockchain requires collaboration among various stakeholders including suppliers, manufacturers, and retailers. The variations in goals and priorities among these stakeholders might discourage mutual creation of the strategy for adopting blockchain [122,123]. Employee and management unacquaintance with blockchain technology is also a hindrance to advancement since companies might not possess the necessary expertise required to execute and oversee blockchain applications [122,124].

6.1.3. Legal and Ethical Challenges

The legal and ethical implications of the use of blockchain technology in supply chain management are multifaceted. One of the key issues is the lack of a clear regulatory framework for using blockchain technology. This creates uncertainty, which may dissuade organizations to invest in blockchain technology solutions as they may fear probable legal suits or breaches [118,125]. The decentralized nature of blockchain raises concerns about ownership of data and privacy. Companies must find their way through complex regulatory climates to ensure data protection laws, such as the European Union’s General Data Protection Regulation (GDPR) [117]. The ethical implications of using blockchain technology, particularly transparency and accountability, also need utmost consideration. Companies should balance the benefits of openness with the potential risks of exposing sensitive information [126].

6.2. Limitations of the Review

This study is a narrative review, not a systematic review. Consequently, no attempt is made to claim exhaustive coverage of all literature, and no inclusion and exclusion criteria, whether formal or not, are invoked. Sources were selected on the basis of thematic relevance, range of opinion, and balance of geographies and sectors. While this approach enables broad conceptual synthesis, certain relevant studies may be omitted. The findings are thus to be considered a conceptual mapping and gap identification exercise, rather than a statistically generalizable study.

6.3. Research Gaps and Future Directions

While many studies establish their own indices, for example, “trust score” or “traceability level”, insufficient consensus has emerged about definitions, scales, or validation procedures. Such variability hinders cross-study comparison as well as the conduct of a meta-analysis or policy benchmarking. Future research should be directed toward developing uniform frameworks and scalable metrics deployable across industries, possibly in terms of available standards in financial auditing, quality control, or cybersecurity.
Most of the current work is based on consumer, manager, or expert surveys in which transparency, traceability, and trust improvements are rated subsequent to blockchain implementation. While useful for exploratory research, self-reported measures suffer from social desirability bias and contextual limitedness. Stronger work involving objective performance measures such as audit logs, product tracking timestamps, defect frequencies, or recall frequencies is needed. The connection of real supply chain data, particularly in blockchain pilots, would make it possible to verify more strongly blockchain’s measurable impact on transparency, traceability, and trust outcomes.
There is a paucity of longitudinal and multi-step research comparing blockchain’s impact over the long-term. Most existing research measures transparency, traceability, and trust results soon after deployment or with cross-sectional designs, failing to capture supply chain relationship dynamics and trust changes. Trust, in particular, is not a time-invariant variable, it grows and erodes over time. Long-term-effect studies of how mechanisms of traceability and transparency affect the resilience of trust against disruptions, regulatory changes, or reputation crises should be included in future research.
Whereas blockchain provides structural data integrity and auditability of the transactions, IoT, AI, and digital twin technologies offer real-time sensing, forecasting, and simulation. There is limited research that investigates how these technologies interact synergistically to enhance transparency, traceability, and trust in supply chain systems. Hybrid digital infrastructure models may be researched further for how sensor data or AI processing can be anchored or certified on the blockchain for improving traceability and facilitating trust-based automated decision making.
There is a need for broader, cross-industry empirical studies with consideration of various regulatory environments, culture contexts, and firm sizes. There are few studies, restricted to food, pharma, or manufacturing supply chains, normally confined to one country or region. Such narrow constraints limit the generalizability of findings. Future studies ought to use comparative or international designs, including small and medium-sized enterprises (SMEs), public–private partnerships, and developing economy supply chains. Such studies may provide information on the scalability and adaptability of blockchain solutions to transparency, traceability, and trust over a variety of operating environments.

7. Conclusions

Across sectors such as food, pharmaceuticals, and manufacturing, blockchain’s core capabilities, immutability, distributed consensus, smart contracts, and decentralized identity, offer significant potential to enhance the quality, security, and transparency of supply chain data. Its integration with other digital technologies like IoT and AI has further expanded its applicability in real-time tracking, event validation, and automation. However, the review also underscores important limitations, particularly concerning scalability, interoperability, legal ambiguity, and the cost and complexity of implementation. Blockchain’s potential remains compelling, but its practical realization demands tailored strategies aligned with organizational maturity and ecosystem readiness.
This paper reasserts the critical importance of treating transparency, traceability, and trust as distinct yet interconnected pillars within blockchain-enabled data-driven supply chain management. Transparency enables visibility into transactions and operations, traceability ensures the end-to-end trackability of goods and data, and trust serves as both an outcome and a prerequisite for multi-stakeholder collaboration. By disaggregating these concepts, this review has demonstrated how specific blockchain functions, such as data anchoring, access control, and smart contract enforcement, map uniquely to each of these pillars. The conceptual clarity gained through this dissection not only helps overcome the ambiguity in the existing literature but also strengthens the theoretical foundation for future empirical assessments and system design.
Despite numerous pilot projects demonstrating blockchain’s value in enhancing transparency, traceability, and trust, widespread adoption at scale remains elusive. Many current implementations are limited to controlled environments or single-use cases, constrained by technical challenges, lack of standardization, and stakeholder resistance. Moving from pilot to scaled deployment requires a concerted effort to overcome both technical and organizational barriers. This includes creating interoperable platforms, refining legal and governance frameworks, ensuring data quality at the point of entry, and aligning incentives among diverse stakeholders. Moreover, clearer performance benchmarks and return-on-investment indicators are needed to justify long-term investment and integration.
The path forward involves both research innovation and strategic implementation. Researchers must pursue more robust, cross-industry studies that measure the long-term, quantifiable effects of blockchain on transparency, traceability, and trust in diverse supply chain environments. Practitioners, meanwhile, must shift from proof-of-concept to operational readiness by embedding blockchain within broader digital transformation agendas. When paired with supportive policies, standards, and digital ecosystems, blockchain can transition from a promising pilot technology to a scalable, trust-enhancing engine at the core of data-driven supply chain management.

Author Contributions

Conceptualization, M.M.; methodology, H.T.; validation, M.M. and H.T.; formal analysis, H.T. and M.M.; resources, H.T.; data curation, M.M.; writing—original draft preparation, M.M.; writing, review and editing, M.M. and H.T.; visualization, M.M.; supervision, H.T. All authors have read and agreed to the published version of the manuscript.

Funding

This research received no external funding.

Informed Consent Statement

Not applicable.

Data Availability Statement

The original contributions presented in this study are included in the article. Further inquiries can be directed to the corresponding author.

Conflicts of Interest

The authors declare no conflicts of interest.

Abbreviations

The following abbreviations are used in this manuscript:
IoTInternet of Things
AIArtificial intelligence

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Figure 1. Blockchain integration in data-driven supply chain ecosystems.
Figure 1. Blockchain integration in data-driven supply chain ecosystems.
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Figure 2. Blockchain functional contributions to core supply chain capabilities.
Figure 2. Blockchain functional contributions to core supply chain capabilities.
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Figure 3. Conceptual distinction of transparency, traceability, and trust in supply chains.
Figure 3. Conceptual distinction of transparency, traceability, and trust in supply chains.
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Figure 4. Blockchain’s integration in supply chain data ecosystems.
Figure 4. Blockchain’s integration in supply chain data ecosystems.
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Table 1. Summary of key literature reviews on blockchain in supply chain management.
Table 1. Summary of key literature reviews on blockchain in supply chain management.
StudyFocus AreaKey ContributionsLimitations Identified
Grover et al. [14]Systematic review of blockchain in supply chainIdentified blockchain’s role in facilitating instantaneous payments, trusted interfaces, and traceable products; emphasized snapshot sharing and provenanceLacked detailed analysis of inter-relationships between transparency, traceability, and trust pillars
Pournader et al. [15]Four-theme review: technology, trust, trade, traceability/transparencyProvided a thematic categorization of blockchain literature; emphasized trust and transparencyDid not explore operational linkages among transparency, traceability, and trust themes
Gálvez et al. [16]Food supply chain (blockchain for authenticity and safety)Highlighted blockchain’s role in combating food falsification and improving authenticitySector-specific; lacks generalizability across industries
Chavez et al. [17]Healthcare and organ supply chainsShowed blockchain ensuring transparency and trust in organ procurementLimited to healthcare; lacks broader operational modeling
Shahaab [18]Trust gap in public–private ecosystemsArgued blockchain closes trust gaps via auditable systems; stressed integration over isolated useEmphasized contextual integration challenges
Bustamante et al. [19]Blockchain in public sector governanceReported efficiency and transparency gains; adoption mostly limited to pilotsCalls for deeper study of adoption barriers
Li et al. [20]Operational capabilities and performanceStressed need to evaluate blockchain’s impact on supply chain performanceIdentified lack of frameworks to assess performance metrics
Mvubu and Naude [21]Constraints in blockchain logisticsIdentified technical and organizational challenges in logisticsLacked solutions for overcoming identified constraints
Table 3. Sector-specific applicability of blockchain in supply chains.
Table 3. Sector-specific applicability of blockchain in supply chains.
SectorKey ChallengesBlockchain ApplicationsCurrent Limitations/GapsReferences
HealthcareStringent quality control; prevention of counterfeit products; securing medical devicesImmutable records for medical device tracking; counterfeit medicine preventionMost initiatives still in proof-of-concept phase; need for policy alignment[108]
PharmaceuticalThreat of counterfeit drugs; regulatory compliance for track-and-traceBlockchain-based traceability systems for drug transactionsIntegration with existing systems; high implementation costs[109]
AgricultureComplex network of stakeholders; food fraud; safety monitoringTransparency in food sourcing; blockchain + IoT for real-time monitoringData interoperability issues; limited stakeholder engagement[110,111]
ConstructionLow technology adoption; fragmented stakeholder communicationInformation management and collaboration in off-site construction supply chainsResistance to change; unclear ROI[112]
Food Supply ChainTraceability of origin and quality; food waste reductionBlockchain + IoT + AI for traceability, inventory management, and demand forecastingData security concerns; shortage of skilled personnel[113]
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Madanchian, M.; Taherdoost, H. A Narrative Review and Gap Analysis of Blockchain for Transparency, Traceability, and Trust in Data-Driven Supply Chains. Appl. Sci. 2025, 15, 9571. https://doi.org/10.3390/app15179571

AMA Style

Madanchian M, Taherdoost H. A Narrative Review and Gap Analysis of Blockchain for Transparency, Traceability, and Trust in Data-Driven Supply Chains. Applied Sciences. 2025; 15(17):9571. https://doi.org/10.3390/app15179571

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Madanchian, Mitra, and Hamed Taherdoost. 2025. "A Narrative Review and Gap Analysis of Blockchain for Transparency, Traceability, and Trust in Data-Driven Supply Chains" Applied Sciences 15, no. 17: 9571. https://doi.org/10.3390/app15179571

APA Style

Madanchian, M., & Taherdoost, H. (2025). A Narrative Review and Gap Analysis of Blockchain for Transparency, Traceability, and Trust in Data-Driven Supply Chains. Applied Sciences, 15(17), 9571. https://doi.org/10.3390/app15179571

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