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On October 31, 2008, a 9-page white paper written by a person or group named "Satoshi Nakamoto" was released. The white paper, called "Bitcoin: A Peer-to-Peer Electronic Cash System" was issued to the subscribers of the cryptography mailing list and described a revolutionary technology that created the world's first genuine peer-to-peer, trustless and decentralized monetary system. The internet-based money enabled online payments without a trusted intermediary or third-party and was also not under the control of a government or corporate entity.
While Bitcoin was the headliner of the white paper, it was not the technology that enabled the peer-to-peer, electronic, cash system to work. That technology was called Blockchain. Ironically, the word blockchain was never mentioned in the white paper but was described in detail. So, in early 2009, Bitcoin was released as a public domain piece of software. Among other capabilities, Blockchain enables trust on the Internet between parties who are anonymous.
Blockchain is indeed a revolutionary capability that put a new spin on how applications could be built going forward. This is why it is impossible to browse the Internet, pick up a newspaper or magazine and not see a headline referencing Blockchain.
One day, Blockchain will be so mainstream that its skeleton will disappear in the same way that electrical wires are part of every wall, but no one notices anymore. But, before then, you should learn what Blockchain is and how it works. Paul Tatro's groundbreaking new book, Blockchain Unchained: The Illustrated Guide to Understanding Blockchain, will help you do exactly that.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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