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Understanding Blockchain Technology: How It Works and Its Applications
Tech
avant-hierRésumé IA

Understanding Blockchain Technology: How It Works and Its Applications

Blockchain technology, initially proposed by Haber and Stornetta and popularized by Nakamoto, is a distributed digital ledger that stores data in immutable, timestamped blocks. It enables secure, decentralized transactions without third parties, used in cryptocurrencies and adopted by companies like Walmart and IBM for supply chain tracking, offering benefits like increased accuracy and security despite data storage limits and regulatory changes.

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TechCrunch Intl
5 min de lecture
Trump: US security guarantees for Ukraine could include closing airspace
En développement
Monde·08/07/2026Résumé IA

Trump: US security guarantees for Ukraine could include closing airspace

US President Donald Trump stated that potential US security guarantees for Ukraine could involve closing Ukraine's airspace if deemed necessary. He made these remarks during a meeting with Ukrainian President Vladimir Zelensky on the sidelines of the NATO summit in Ankara. Trump also noted that Ukraine might not receive any security guarantees at all, suggesting an agreement could function without Washington's backing.

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TASS