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Bitcoin and Altcoin are digital currencies (cryptocurrencies) that use blockchain technology, a technology that can monitor, supervise, record, and record every transaction that occurs in digital currency. Bitcoin is decentralized, meaning it is spread everywhere, not centralized and cannot be regulated by authorities or other institutions. In making transactions, it is very necessary to recognize digital currencies such as identity, core business, projects being developed, volume of demand and supply, and other indicators. The need to find out information about coins/crypto tokens before trading, is a very helpful thing for traders because of concerns about coins/tokens that are indicated as scam or rugpull. Coinmarketcap.com and coingecko are data provider sites related to bitcoin and altcoins around the world, which can help find and analyze related information about tokens/cryptocoins to be traded, but do not guarantee accuracy, but can minimize the occurrence of greater losses. Digital currencies provide business opportunities and loopholes to be able to generate profit from every coin/token traded, but on the other hand these assets are risky for traders and investors due to their high volatility which makes market price movements difficult to predict (unpredictable). To be able to overcome this problem it is necessary to manage finances by taking 10% for trading from the main salary earned, dividing which assets are needed for trading and which are for daily / other living needs and self-control well, when is it time to trade, rest, and when to pause. That way it can save other assets when the other asset is experiencing a decline, so it doesn't disturb the main asset.

This article examines how digital transformation, including the use of big data, Internet of Things (IoT), and blockchain, enhances supply chain efficiency. Focusing on the retail and manufacturing sectors, the study reveals that digital tools improve visibility, reduce delays, and optimize inventory management. The findings suggest that digital transformation is essential for businesses aiming to increase agility and resilience in a globalized supply chain.

The purpose of this study was to review the market place of PT Tokopedia in maintaining the image and trust of consumers after the leakage of customer data. The research method used in this study is a qualitative method, the data I use is in the form of writing I & I, not numbers. I have reviewed this data. Based on Ijournals, my mother, Iwebsite, and other official documents, PT Tokopedia informs about user data leaks. Tokopedia requires the necessary policies. Utilizing a new data security method, namely blockchain, as well as establishing special laws for the protection of personal data, is necessary to minimize the amount of business personal data. a significant impact on consumer confidence thereby influencing consumer purchasing power for sales made on the PT Tokopedia marketplace.    

Blockchain technology has emerged as a transformative solution for enhancing transparency and traceability in global supply chains. This paper explores the applications of blockchain in improving data accuracy and accountability, particularly in sectors such as agriculture, manufacturing, and pharmaceuticals. Through detailed case studies, the research demonstrates blockchain's effectiveness in reducing fraud, enhancing trust among stakeholders, and ensuring a more resilient supply chain framework. The findings suggest that implementing blockchain can significantly improve operational efficiencies and foster collaborative relationships across various industries.