Contents I. Introduction
The internet of things (IoT) ecosystem is constituted of entities and devices that produce enormous amounts of processed and intermediate data, both of which are crucial for security and safety. Due to frequently evolving sustainable business models that demand novel, reasonably priced solutions for privacy, access control, and transparency, a new ecosystem of enterprises is forming. On the other hand, the number of IoT devices is growing significantly at an exponential rate. Centralized access and privacy management over semi-private networks continue to be extremely burdensome in terms of upkeep, the absence of open standards, resource limitations, and widespread acceptance. In addition to raising maintenance costs, the system's single point of failure is the system itself. Because each ecosystem player has a configuration for centrally managing their own devices, reusability and interoperability are equally challenging to maintain. Every other solution available at the moment manages device access control by establishing policy rules [20] and characteristics [19]. Various players within the ecosystem may have different interpretations of this set of laws. The crucial network's entire value chain will collapse if the central system is seriously affected. To better understand the scenario, let's use an example from DTH and the media supply business [23]. In the industry, there are numerous DTH providers. A set-top box with a unique serial number and an individual identification number is often assigned when an existing subscriber joins a DTH provider. Currently, each service provider keeps a set-top box specific to a certain vendor and its individual customer base. In addition to a group of suppliers who provide the set-top boxes, the provider also has an independent sales channel for acquiring the customer base. This consolidated corporate ecosystem presents numerous difficulties for operations management and centralized data management. Due to the upfront commitment of setup costs, users have problems because they are unable to transfer providers frequently in cases where providers have a monopolistic nature (interoperability issue). Active users might not be aware of how the supplier manages their personal information, such as KYC data and specific bank details. Users are not very aware of what would happen to the data stored with the prior provider even if they switched to a different provider (privacy issue). The old setup, including the set-top box, router, and cables, naturally becomes e-waste when a user switches service providers, even if it has the potential to be recycled because, within the same non-monopolistic DTH business, typical user configuration, devices, and setup are identical (reusability issue). We have previously presented a public blockchain-based approach for the automated device-managed trust management, interoperability, and reusability of IoT assets. The logical extension of these fundamental problems reveals that privacy on a public blockchain faces particular difficulties. The system normally needs to be decentralized access-controlled data transparency with the provider ecosystem after building a vital ecosystem with a group of top providers on a public blockchain. Users may have the ability to smoothly move between providers. Every DTH provider, however, inevitably has its own unique ecosystem of supply chain participants, including set-top-box makers, user service providers, warehouse managers, customer care support, etc. Information about the cross-provider supply chain ecosystem network need not be known by DTH providers. Additionally, a restricted group of networks allows participation from service providers, top suppliers, users, and/or IoT devices (set-top boxes) from the public network. Even one of the top suppliers might participate in numerous supply chain ecosystems (Access Control issue).
