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حادثه تلخ گازگرفتگی در معدن مهماندویه، تنها یک خبر نبود؛ زخمی عمیق بود که بر دل همه‌‌ی ما که با معدن و دغدغه‌های آن زیسته‌ایم، نشست.
همکاران، همراهان، برادران زیرزمین... شما که در دل تاریکی، روشنایی روزی را به خانه‌هایتان می‌بردید، اکنون رفته‌اید، اما یاد و خاطره‌تان، روشنی همیشگی دل‌های ماست.
با قلبی سرشار از اندوه، به خانواده‌های داغ‌دار این عزیزان، صمیمانه تسلیت عرض می‌کنیم. بدانید که در این غم، تنها نیستید؛ اندوه شما، اندوه همه ماست.
حادثه تلخ گازگرفتگی در معدن مهماندویه، تنها یک خبر نبود؛ زخمی عمیق بود که بر دل همه‌‌ی ما که با معدن و دغدغه‌های آن زیسته‌ایم، نشست.
همکاران، همراهان، برادران زیرزمین... شما که در دل تاریکی، روشنایی روزی را به خانه‌هایتان می‌بردید، اکنون رفته‌اید، اما یاد و خاطره‌تان، روشنی همیشگی دل‌های ماست.
با قلبی سرشار از اندوه، به خانواده‌های داغ‌دار این عزیزان، صمیمانه تسلیت عرض می‌کنیم. بدانید که در این غم، تنها نیستید؛ اندوه شما، اندوه همه ماست.
Bitcoin is a decentralized digital currency that you can buy, sell and exchange directly, without an intermediary like a bank. Bitcoin’s creator, Satoshi Nakamoto, originally described the need for “an electronic payment system based on cryptographic proof instead of trust.” Each and every Bitcoin transaction that’s ever been made exists on a public ledger accessible to everyone, making transactions hard to reverse and difficult to fake. That’s by design: Core to their decentralized nature, Bitcoins aren’t backed by the government or any issuing institution, and there’s nothing to guarantee their value besides the proof baked in the heart of the system. “The reason why it’s worth money is simply because we, as people, decided it has value—same as gold,” says Anton Mozgovoy, co-founder & CEO of digital financial service company Holyheld.
How Does Bitcoin Work?
Bitcoin is built on a distributed digital record called a blockchain. As the name implies, blockchain is a linked body of data, made up of units called blocks that contain information about each and every transaction, including date and time, total value, buyer and seller, and a unique identifying code for each exchange. Entries are strung together in chronological order, creating a digital chain of blocks. “Once a block is added to the blockchain, it becomes accessible to anyone who wishes to view it, acting as a public ledger of cryptocurrency transactions,” says Stacey Harris, consultant for Pelicoin, a network of cryptocurrency ATMs. Blockchain is decentralized, which means it’s not controlled by any one organization. “It’s like a Google Doc that anyone can work on,” says Buchi Okoro, CEO and co-founder of African cryptocurrency exchange Quidax. “Nobody owns it, but anyone who has a link can contribute to it. And as different people update it, your copy also gets updated.”
