Ferdous, Md SadekAdvan, RodelNabi, Md. MashfiqunSahib, FaiajRaihan, Aarshi Durriya2026-08-102026-08-1020262026-01ID 22341047ID 22141027ID 24141168ID 22101546https://hdl.handle.net/10361/28874This thesis is submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Computer Science, 2026.Cataloged from PDF version of thesis.Includes bibliographical references (pages 94-97).Blockchain technology, which has persisted for a considerable period and has achieved remarkable advancements since the emergence of Bitcoin, still faces a challenge in normalizing cryptocurrency mining using smartphones for general users. This difficulty stems from the complexity of certain algorithms, such as Proof of Work (PoW) and Proof of Stake (PoS), which smartphones cannot effectively handle. Despite numerous proposals for smartphone-based consensus algorithms, integrating various Internet of Things (IoT) accessories, like smartwatches, into the smartphone consensus for enhanced processing capabilities remains uncommon. To address this research gap, we present a novel smartphone-based blockchain consensus protocol called Proof of Physical Activity (PoPA). PoPA leverages human physiological data collected from smartwatch sensors to participate in the mining process. This approach not only enhances the mining efficiency but also serves as a proof of physical fitness, supporting various applications.106 pagesen-USAttribution-NonCommercial-NoDerivatives 4.0 InternationalBRAC University theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.http://creativecommons.org/licenses/by-nc-nd/4.0/Blockchain technologyDistributed databasesProof of workComputer algorithmsCryptocurrencyIoTConsensus algorithmsSmartphone-based consensus algorithmsBitcoinBlockchains (Databases).Data mining.Internet of things.Thesis