• V Mahesh
• Dr. A.Satya Narayana
• Dr. Dinesh Kumar Rangarajan
• Dr. JBV Subrahmanyam

Traditionally, student’s attendances are taken manually by using attendance sheet given by the faculty members in class, which is a time-consuming event. Moreover, it is very difficult to verify one by one student in a large classroom environment with distributed branches whether the authenticated students are actually responding or not. Using conventional method of calling out names takes approximately 5-10 minutes for marking attendance of entire class. It becomes complicated when strength is more. With the increase in technology, attendance monitoring is designed with android or web-based applications. However, the intention of this design is to provide a Blockchain based app that can be downloaded and used by the organization with no third-party control to meddle with the data. On a blockchain based system, no administrator permission is allowed to editing or deleting data. Someone who inserts an information record on the blockchain will not be able to deny that he is doing the activity. There is an update option to modify attendance when it’s needed. However, the modifications are recorded and tracked, just in case it’s a fraudulent activity. Attendance is captured using IOT automatically and is entered into the blockchain which makes the data tamper-proof, secure and robust. The privacy of it’s users is preserved because the user ids are generated by trusted third party. This data is available for government for Scholarship and other related decision making.

IoT, Arduino, NodeMCU, Blockchain, Ethereum, Decentralized Applications, DApp, web3, Smart Contract, IPFS, Infura, Remix.

"IOT BASED ATTENDENCE SYSTEM USING BLOCKCHAIN", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 12, page no.b482-b487, December-2022, Available :http://www.jetir.org/papers/JETIR2212152.pdf

"IOT BASED ATTENDENCE SYSTEM USING BLOCKCHAIN", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 12, page no. ppb482-b487, December-2022, Available at : http://www.jetir.org/papers/JETIR2212152.pdf